test: use signet for live tests

This is simply to bring it in line with the other libraries.

.github/ISSUE_TEMPLATE/enhancement_request.md

@@ -0,0 +1,17 @@
+---
+name: Enhancement request
+about: Request a new feature or change to an existing feature
+title: ''
+labels: 'enhancement'
+assignees: ''
+
+---
+
+**Describe the enhancement**  
+<!-- A clear and concise description of what you would like added or changed. -->
+
+**Use case**  
+<!-- Tell us how you or others will use this new feature or change to an existing feature. --> 
+
+**Additional context**
+<!-- Add any other context about the enhancement here. --> 

.github/ISSUE_TEMPLATE/minor_release.md

@@ -1,101 +0,0 @@
----
-name: Minor Release
-about: Create a new minor release [for release managers only]
-title: 'Release MAJOR.MINOR+1.0'
-labels: 'release'
-assignees: ''
-
----
-
-## Create a new minor release
-
-### Summary
-
-<--release summary to be used in announcements-->
-
-### Commit
-
-<--latest commit ID to include in this release-->
-
-### Changelog
-
-<--add notices from PRs merged since the prior release, see ["keep a changelog"]-->
-
-### Checklist
-
-Release numbering must follow [Semantic Versioning]. These steps assume the current `master`
-branch **development** version is *MAJOR.MINOR.0*.
-
-#### On the day of the feature freeze
-
-Change the `master` branch to the next MINOR+1 version:
-
-- [ ] Switch to the `master` branch.
-- [ ] Create a new PR branch called `bump_dev_MAJOR_MINOR+1`, eg. `bump_dev_0_22`.
-- [ ] Bump the `bump_dev_MAJOR_MINOR+1` branch to the next development MINOR+1 version.
-  - Change the `Cargo.toml` version value to `MAJOR.MINOR+1.0`.
-  - The commit message should be "Bump version to MAJOR.MINOR+1.0".
-- [ ] Create PR and merge the `bump_dev_MAJOR_MINOR+1` branch to `master`.
-  - Title PR "Bump version to MAJOR.MINOR+1.0".
-
-Create a new release branch:
-
-- [ ] Double check that your local `master` is up-to-date with the upstream repo.
-- [ ] Create a new branch called `release/MAJOR.MINOR+1` from `master`.
-
-Add a release candidate tag, this is optional and only needed for major `bdk-ffi` changes that 
-require a longer testing cycle: 
-
-- [ ] Bump the `release/MAJOR.MINOR+1` branch to `MAJOR.MINOR+1.0-rc.1` version.
-  - Change the `Cargo.toml` version value to `MAJOR.MINOR+1.0-rc.1`.
-  - The commit message should be "Bump version to MAJOR.MINOR+1.0-rc.1".
-- [ ] Add a tag to the `HEAD` commit in the `release/MAJOR.MINOR+1` branch.
-  - The tag name should be `vMAJOR.MINOR+1.0-rc.1`
-  - Use message "Release MAJOR.MINOR+1.0 rc.1".
-  - Make sure the tag is signed, for extra safety use the explicit `--sign` flag.
-- [ ] Push the `release/MAJOR.MINOR` branch and new tag to the `bitcoindevkit/bdk` repo.
-  - Use `git push --tags` option to push the new `vMAJOR.MINOR+1.0-rc.1` tag.
-
-If any issues need to be fixed before the *MAJOR.MINOR+1.0* version is released:
-
-- [ ] Merge fix PRs to the `master` branch.
-- [ ] Git cherry-pick fix commits to the `release/MAJOR.MINOR+1` branch.
-- [ ] Verify fixes in `release/MAJOR.MINOR+1` branch.
-- [ ] Bump the `release/MAJOR.MINOR+1` branch to `MAJOR.MINOR+1.0-rc.x+1` version.
-  - Change the `Cargo.toml` version value to `MAJOR.MINOR+1.0-rc.x+1`.
-  - The commit message should be "Bump version to MAJOR.MINOR+1.0-rc.x+1".
-- [ ] Add a tag to the `HEAD` commit in the `release/MAJOR.MINOR+1` branch.
-  - The tag name should be `vMAJOR.MINOR+1.0-rc.x+1`, where x is the current release candidate number.
-  - Use tag message "Release MAJOR.MINOR+1.0 rc.x+1".
-  - Make sure the tag is signed, for extra safety use the explicit `--sign` flag.
-- [ ] Push the new tag to the `bitcoindevkit/bdk` repo.
-  - Use `git push --tags` option to push the new `vMAJOR.MINOR+1.0-rc.x+1` tag.
-
-#### On the day of the release
-
-Tag and publish new release:
-
-- [ ] Bump the `release/MAJOR.MINOR+1` branch to `MAJOR.MINOR+1.0` version.
-  - Change the `Cargo.toml` version value to `MAJOR.MINOR+1.0`.
-  - The commit message should be "Bump version to MAJOR.MINOR+1.0".
-- [ ] Add a tag to the `HEAD` commit in the `release/MAJOR.MINOR+1` branch.
-  - The tag name should be `vMAJOR.MINOR+1.0`
-  - The first line of the tag message should be "Release MAJOR.MINOR+1.0".
-  - In the body of the tag message put a copy of the **Summary** and **Changelog** for the release.
-  - Make sure the tag is signed, for extra safety use the explicit `--sign` flag.
-- [ ] Wait for the CI to finish one last time.
-- [ ] Push the new tag to the `bitcoindevkit/bdk` repo.
-- [ ] Create the release on GitHub.
-  - Go to "tags", click on the dots on the right and select "Create Release".
-  - Set the title to `Release MAJOR.MINOR+1.0`.
-  - In the release notes body put the **Summary** and **Changelog**.
-  - Use the "+ Auto-generate release notes" button to add details from included PRs.
-  - Until we reach a `1.0.0` release check the "Pre-release" box.
-- [ ] After downstream language repos are also updated announce the release, using the **Summary**,  
-      on Discord, Twitter and Mastodon.
-- [ ] Celebrate 🎉
-
-[Semantic Versioning]: https://semver.org/
-[crates.io]: https://crates.io/crates/bdk
-[docs.rs]: https://docs.rs/bdk/latest/bdk
-["keep a changelog"]: https://keepachangelog.com/en/1.0.0/

.github/ISSUE_TEMPLATE/patch_release.md

@@ -1,69 +0,0 @@
----
-name: Patch Release
-about: Create a new patch release [for release managers only]
-title: 'Release MAJOR.MINOR.PATCH+1'
-labels: 'release'
-assignees: ''
-
----
-
-## Create a new patch release
-
-### Summary
-
-<--release summary to be used in announcements-->
-
-### Commit
-
-<--latest commit ID to include in this release-->
-
-### Changelog
-
-<--add notices from PRs merged since the prior release, see ["keep a changelog"]-->
-
-### Checklist
-
-Release numbering must follow [Semantic Versioning]. These steps assume the current `master`
-branch **development** version is *MAJOR.MINOR.PATCH*.
-
-### On the day of the patch release
-
-Change the `master` branch to the new PATCH+1 version:
-
-- [ ] Switch to the `master` branch.
-- [ ] Create a new PR branch called `bump_dev_MAJOR_MINOR_PATCH+1`, eg. `bump_dev_0_22_1`.
-- [ ] Bump the `bump_dev_MAJOR_MINOR` branch to the next development PATCH+1 version.
-  - Change the `Cargo.toml` version value to `MAJOR.MINOR.PATCH+1`.
-  - The commit message should be "Bump version to MAJOR.MINOR.PATCH+1".
-- [ ] Create PR and merge the `bump_dev_MAJOR_MINOR_PATCH+1` branch to `master`.
-  - Title PR "Bump version to MAJOR.MINOR.PATCH+1".
-
-Cherry-pick, tag and publish new PATCH+1 release:
-
-- [ ] Merge fix PRs to the `master` branch.
-- [ ] Git cherry-pick fix commits to the `release/MAJOR.MINOR` branch to be patched.
-- [ ] Verify fixes in `release/MAJOR.MINOR` branch.
-- [ ] Bump the `release/MAJOR.MINOR.PATCH+1` branch to `MAJOR.MINOR.PATCH+1` version.
-  - Change the `Cargo.toml` version value to `MAJOR.MINOR.MINOR.PATCH+1`.
-  - The commit message should be "Bump version to MAJOR.MINOR.PATCH+1".
-- [ ] Add a tag to the `HEAD` commit in the `release/MAJOR.MINOR` branch.
-  - The tag name should be `vMAJOR.MINOR.PATCH+1`
-  - The first line of the tag message should be "Release MAJOR.MINOR.PATCH+1".
-  - In the body of the tag message put a copy of the **Summary** and **Changelog** for the release.
-  - Make sure the tag is signed, for extra safety use the explicit `--sign` flag.
-- [ ] Wait for the CI to finish one last time.
-- [ ] Push the new tag to the `bitcoindevkit/bdk` repo.
-- [ ] Create the release on GitHub.
-  - Go to "tags", click on the dots on the right and select "Create Release".
-  - Set the title to `Release MAJOR.MINOR.PATCH+1`.
-  - In the release notes body put the **Summary** and **Changelog**.
-  - Use the "+ Auto-generate release notes" button to add details from included PRs.
-  - Until we reach a `1.0.0` release check the "Pre-release" box.
-- [ ] After downstream language repos are also updated announce the release, using the **Summary**,  
-      on Discord, Twitter and Mastodon.
-- [ ] Celebrate 🎉
-
-[Semantic Versioning]: https://semver.org/
-[crates.io]: https://crates.io/crates/bdk
-[docs.rs]: https://docs.rs/bdk/latest/bdk
-["keep a changelog"]: https://keepachangelog.com/en/1.0.0/

.github/ISSUE_TEMPLATE/release.md

@@ -0,0 +1,95 @@
+---
+name: Release
+about: Create a new release [for release managers only]
+title: 'Release MAJOR.MINOR.PATCH'
+labels: 'release'
+assignees: ''
+---
+
+# Part 1: Bump BDK Rust Version
+
+1. - [ ] Open a PR with an update to `Cargo.toml` to the new bdk release candidate and ensure all CI workflows run correctly. Fix errors if necessary.
+2. - [ ] Once the new bdk release is out, update the PR to replace the release candidate with the full release and merge.
+
+# Part 2: Prepare Libraries for Release Branch
+
+### _Android_
+
+3. - [ ] Update the API docs to reflect the changes in the API
+4. - [ ] Delete the `target` directory in bdk-ffi and all `build` directories (in root, `lib`, and `plugins`) in the bdk-android directory to make sure you're building the library from scratch.
+5. - [ ] Build the library and run the offline and live tests, and adjust them if necessary (note that you'll need an Android emulator running).
+```shell
+# start an emulator prior to running the tests
+cd ./bdk-android/
+just clean
+just build
+just test
+```
+6. - [ ] Update the readme if necessary
+
+### _JVM_
+
+7. - [ ] Update the API docs to reflect the changes in the API
+8. - [ ] Delete the `target` directory in bdk-ffi and all `build` directories (in root, `lib`, and `plugins`) in bdk-jvm directory to make sure you're building the library from scratch.
+9. - [ ] Build the library and run the tests, and adjust if necessary
+```shell
+cd ./bdk-jvm/
+just clean
+just build
+just test
+```
+10.  - [ ] Update the readme if necessary
+
+### _Swift_
+
+11. - [ ] Delete the `target` directory in bdk-ffi
+12. - [ ] Run the tests and adjust if necessary
+```shell
+cd ./bdk-swift/
+just clean
+just build
+just test
+```
+13.  - [ ] Update the readme if necessary
+
+### _Python_
+
+14. - [ ] Delete the `dist`, `build`, and `bdkpython.egg-info` and rust `target` directories to make sure you are building the library from scratch without any caches
+15. - [ ] Build the library
+```shell
+cd ./bdk-python/
+just clean
+pip3 install --requirement requirements.txt
+bash ./scripts/generate-macos-arm64.sh # run the script for your particular platform
+python3 setup.py --verbose bdist_wheel
+```
+16.  - [ ] Run the tests and adjust if necessary
+```shell
+pip3 install ./dist/bdkpython-<yourversion>-py3-none-any.whl --force-reinstall
+python -m unittest --verbose
+```
+17.  - [ ] Update the readme and `setup.py` if necessary
+18. - [ ] Update the Android, JVM, Python, and Swift libraries as per the _Specific Libraries' Workflows_ section above. Open a single PR on master for all of these changes called `Prepare language bindings libraries for 0.X release`. See [example PR here](https://github.com/bitcoindevkit/bdk-ffi/pull/315).
+
+## Part 3: Release Workflow
+
+19. - [ ] Create a new branch off of `master` called `release/<feature version>`, e.g. `release/0.31`
+20. - [ ] Update bdk-android version from `SNAPSHOT` version to release version
+21. - [ ] Update bdk-jvm version from `SNAPSHOT` version to release version
+22. - [ ] Update bdk-python version from `.dev` version to release version
+23. - [ ] Open a PR to that release branch that updates the Android, JVM, and Python libraries' versions in the three steps above. See [example PR here](https://github.com/bitcoindevkit/bdk-ffi/pull/316).
+24. - [ ] Get a review and ACK and merge the PR updating all the languages to their release versions
+25. - [ ] Create the tag for the release and make sure to add the changelog info to the tag (works better if you prepare the tag message on the side in a text editor). Push the tag to GitHub.
+```shell
+git tag v0.6.0 --sign --edit
+git push upstream v0.6.0
+```
+26.  - [ ] Trigger manual releases for all 4 libraries (for Swift, go on the [bdk-swift](https://github.com/bitcoindevkit/bdk-swift) trigger the release on `master` and simply add the version number and tag name in the text fields when running the workflow manually. Note that the version number must not contain the `v`, i.e. `0.26.0`, but the tag will have it, i.e. `v0.26.0`).
+27.  - [ ] Make sure the released libraries work and contain the artifacts you would expect 
+28.  - [ ] Aggregate all the changelog notices from the PRs and add them to the changelog file
+29.  - [ ] Bump the versions on master from `0.9.0-SNAPSHOT` to `0.10.0-SNAPSHOT`, `0.6.0.dev0` to `0.7.0.dev0`
+30.  - [ ] Apply changes to the minor_release and patch_release issue templates if they need any
+31.  - [ ] Open a PR on master with the changes in steps 29, 30, and 31. See [example PR here](https://github.com/bitcoindevkit/bdk-ffi/pull/317). Get a review and merge the PR.
+32.  - [ ] Make release on GitHub (set as pre-release and generate auto release notes between the previous tag and the new one)
+33.  - [ ] Post in the announcement channel
+34.  - [ ] Tweet about the library

.github/workflows/audit.yml

@@ -10,10 +10,16 @@ on:
 
 jobs:
   security_audit:
-    name: Security Audit
+    name: Security audit
     runs-on: ubuntu-20.04
+    defaults:
+      run:
+        working-directory: bdk-ffi
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions-rs/audit-check@v1
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
+      - name: "Check out PR branch"
+        uses: actions/checkout@v3
+
+      - name: "Run audit"
+        run: |
+          cargo install cargo-audit
+          cargo-audit audit

.github/workflows/build-python-wheels.yaml

@@ -1,126 +0,0 @@
-name: Build Python wheels
-on:
-  push:
-    paths:
-      - "bdk-ffi/**"
-      - "bdk-python/**"
-  pull_request:
-    paths:
-      - "bdk-ffi/**"
-      - "bdk-python/**"
-
-# We use manylinux2014 because older CentOS versions used by 2010 and 1 have a very old glibc version, which
-# makes it very hard to use GitHub's javascript actions (checkout, upload-artifact, etc).
-# They mount their own nodejs interpreter inside your container, but since that's not statically linked it
-# tries to load glibc and fails because it requires a more recent version.
-
-jobs:
-  build-manylinux2014-x86_64-wheel:
-    name: 'Build Manylinux 2014 x86_64 wheel'
-    runs-on: ubuntu-latest
-    defaults:
-      run:
-        working-directory: bdk-python
-    container:
-      image: quay.io/pypa/manylinux2014_x86_64
-      env:
-        PLAT: manylinux2014_x86_64
-        PYBIN: '/opt/python/${{ matrix.python }}/bin'
-    strategy:
-      matrix:
-        python: # Update this list whenever the docker image is updated (check /opt/python/)
-          # - cp36-cp36m
-          # - cp37-cp37m
-          # - cp38-cp38
-          # - cp39-cp39
-          - cp310-cp310
-          # - pp37-pypy37_pp73
-          # - pp38-pypy38_pp73
-    steps:
-      - name: checkout
-        uses: actions/checkout@v2
-        with:
-          submodules: true
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: stable
-      - name: install requirements
-        run: ${PYBIN}/pip install -r requirements.txt
-      - name: generate bindings
-        run: bash generate.sh
-      - name: build wheel
-        run: ${PYBIN}/pip wheel . --no-deps -w /tmp/wheelhouse
-      - name: repair wheel
-        run: auditwheel repair /tmp/wheelhouse/* --plat "$PLAT" -w /tmp/wheelhouse-repaired
-      - uses: actions/upload-artifact@v2
-        with:
-          name: bdkpython-manylinux2014-x86_64-${{ matrix.python }}
-          path: /tmp/wheelhouse-repaired/*.whl
-
-  build-macos-universal-wheel:
-    name: 'Build macOS universal wheel'
-    runs-on: macos-latest
-    defaults:
-      run:
-        working-directory: bdk-python
-    strategy:
-      matrix:
-        python:
-          # - '3.7'
-          # - '3.8'
-          # - '3.9'
-          - '3.10'
-    steps:
-      - name: checkout
-        uses: actions/checkout@v2
-        with:
-          submodules: true
-      - uses: actions/setup-python@v2
-        with:
-          python-version: ${{ matrix.python }}
-      - run: python3 --version
-      - run: rustup target add aarch64-apple-darwin
-      - run: pip3 install --user -r requirements.txt
-      - run: pip3 install --user wheel
-      - run: bash generate.sh
-      - name: build wheel
-        env:
-          ARCHFLAGS: "-arch x86_64 -arch arm64"
-        run: python3 setup.py -v bdist_wheel
-      - uses: actions/upload-artifact@v2
-        with:
-          name: bdkpython-macos-${{ matrix.python }}
-          path: dist/*.whl
-
-  build-windows-wheel:
-    name: 'Build windows wheel'
-    runs-on: windows-latest
-    defaults:
-      run:
-        working-directory: bdk-python
-    strategy:
-      matrix:
-        python:
-          # - '3.7'
-          # - '3.8'
-          # - '3.9'
-          - '3.10'
-    steps:
-      - name: checkout
-        uses: actions/checkout@v2
-        with:
-          submodules: true
-      - uses: actions/setup-python@v2
-        with:
-          python-version: ${{ matrix.python }}
-      - run: python --version
-      - run: pip install --user -r requirements.txt
-      - run: bash generate.sh
-        shell: bash
-      - run: pip install --user wheel
-      - name: build wheel
-        run: python setup.py -v bdist_wheel
-      - uses: actions/upload-artifact@v2
-        with:
-          name: bdkpython-win-${{ matrix.python }}
-          path: dist/*.whl

.github/workflows/cont_integration.yml

@@ -1,4 +1,4 @@
-name: bdk-ffi CI
+name: Rust layer CI
 on:
   push:
     paths:
@@ -8,59 +8,77 @@ on:
       - "bdk-ffi/**"
 
 jobs:
-
   build-test:
-    name: Build and test
-    runs-on: ubuntu-latest
+    name: "Build and test"
+    runs-on: ubuntu-20.04
+    defaults:
+      run:
+        working-directory: bdk-ffi
     strategy:
       matrix:
         rust:
-          - version: 1.63.0 # STABLE
+          - version: 1.77.1
             clippy: true
-          - version: 1.61.0 # MSRV
     steps:
-      - name: checkout
-        uses: actions/checkout@v2
-      - name: Generate cache key
+      - name: "Checkout"
+        uses: actions/checkout@v3
+
+      - name: "Generate cache key"
         run: echo "${{ matrix.rust.version }} ${{ matrix.features }}" | tee .cache_key
-      - name: cache
-        uses: actions/cache@v2
+
+      - name: "Cache"
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cargo/registry
             ~/.cargo/git
             target
           key: ${{ runner.os }}-cargo-${{ hashFiles('.cache_key') }}-${{ hashFiles('**/Cargo.toml','**/Cargo.lock') }}
-      - name: Set default toolchain
+
+      - name: "Set default toolchain"
         run: rustup default ${{ matrix.rust.version }}
-      - name: Set profile
+
+      - name: "Set profile"
         run: rustup set profile minimal
-      - name: Add clippy
+
+      - name: "Add clippy"
         if: ${{ matrix.rust.clippy }}
         run: rustup component add clippy
-      - name: Update toolchain
+
+      - name: "Update toolchain"
         run: rustup update
-      - name: Build
+
+      - name: "Build"
         run: cargo build
-      - name: Clippy
+
+      - name: "Clippy"
         if: ${{ matrix.rust.clippy }}
-        run: cargo clippy --all-targets -- -D warnings
-      - name: Test
-        run: CLASSPATH=./tests/jna/jna-5.8.0.jar cargo test
+        run: cargo clippy --all-targets --features "uniffi/bindgen-tests" -- -D warnings
+
+      - name: "Test"
+        run: CLASSPATH=./tests/jna/jna-5.14.0.jar cargo test --features uniffi/bindgen-tests
 
   fmt:
-    name: Rust fmt
-    runs-on: ubuntu-latest
+    name: "Rust fmt"
+    runs-on: ubuntu-20.04
+    defaults:
+      run:
+        working-directory: bdk-ffi
     steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-      - name: Set default toolchain
+      - name: "Checkout"
+        uses: actions/checkout@v3
+
+      - name: "Set default toolchain"
         run: rustup default nightly
-      - name: Set profile
+
+      - name: "Set profile"
         run: rustup set profile minimal
-      - name: Add rustfmt
+
+      - name: "Add rustfmt"
         run: rustup component add rustfmt
-      - name: Update toolchain
+
+      - name: "Update toolchain"
         run: rustup update
-      - name: Check fmt
+
+      - name: "Check fmt"
         run: cargo fmt --all -- --config format_code_in_doc_comments=true --check

.github/workflows/live-tests.yaml

@@ -0,0 +1,96 @@
+name: Run All Live Tests
+on: 
+  workflow_dispatch:
+  schedule:
+    - cron: '0 0 * * 0' # Once per week
+
+jobs:
+  jvm-tests:
+    name: "Build and test JVM library on Linux"
+    runs-on: ubuntu-20.04
+    steps:
+      - name: "Checkout publishing branch"
+        uses: actions/checkout@v3
+
+      - name: "Cache"
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            ./target
+          key: ${{ runner.os }}-${{ hashFiles('**/Cargo.toml','**/Cargo.lock') }}
+
+      - name: "Set up JDK"
+        uses: actions/setup-java@v3
+        with:
+          distribution: temurin
+          java-version: 11
+
+      - name: "Set default Rust version to 1.77.1"
+        run: rustup default 1.77.1
+
+      - name: "Build bdk-jvm library"
+        run: |
+          cd bdk-jvm
+          ./gradlew buildJvmLib
+
+      - name: "Run live JVM tests"
+        run: |
+          cd bdk-jvm
+          ./gradlew test
+
+  swift-tests:
+    name: "Build and test iOS library on macOS"
+    runs-on: macos-12
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v3
+
+      - name: "Build Swift package"
+        working-directory: bdk-swift
+        run: bash ./build-local-swift.sh
+
+      - name: "Run live Swift tests"
+        working-directory: bdk-swift
+        run: swift test
+
+  python-tests:
+    name: "Build and test Python library on Linux"
+    runs-on: ubuntu-20.04
+    defaults:
+      run:
+        working-directory: bdk-python
+    container:
+      image: quay.io/pypa/manylinux2014_x86_64
+      env:
+        PLAT: manylinux2014_x86_64
+        PYBIN: "/opt/python/${{ matrix.python }}/bin"
+    strategy:
+      matrix:
+        python:
+          - cp310-cp310
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v3
+        with:
+          submodules: true
+
+      - name: "Install Rust 1.77.1"
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: 1.77.1
+
+      - name: "Generate bdk.py and binaries"
+        run: bash ./scripts/generate-linux.sh
+
+      - name: "Build wheel"
+        # Specifying the plat-name argument is necessary to build a wheel with the correct name,
+        # see issue #350 for more information
+        run: ${PYBIN}/python setup.py bdist_wheel --plat-name manylinux_2_17_x86_64 --verbose
+
+      - name: "Install wheel"
+        run: ${PYBIN}/pip install ./dist/*.whl
+
+      - name: "Run live Python tests"
+        run: ${PYBIN}/python -m unittest --verbose

.github/workflows/publish-android.yaml

@@ -1,27 +1,17 @@
 name: Publish bdk-android to Maven Central
 on: [workflow_dispatch]
 
-env:
-  ANDROID_NDK_ROOT: /usr/local/lib/android/sdk/ndk/21.4.7075529
-  # By default, the new ubuntu-20.04 images use the following ANDROID_NDK_ROOT
-  # ANDROID_NDK_ROOT: /usr/local/lib/android/sdk/ndk/25.0.8775105
+# The default Android NDK on the ubuntu-22.04 image is 25.2.9519653
 
 jobs:
   build:
     runs-on: ubuntu-20.04
     steps:
-      - name: Install Android NDK 21.4.7075529
-        run: |
-          ANDROID_ROOT=/usr/local/lib/android
-          ANDROID_SDK_ROOT=${ANDROID_ROOT}/sdk
-          SDKMANAGER=${ANDROID_SDK_ROOT}/cmdline-tools/latest/bin/sdkmanager
-          echo "y" | $SDKMANAGER "ndk;21.4.7075529"
+      - name: "Check out PR branch"
+        uses: actions/checkout@v3
 
-      - name: Check out PR branch
-        uses: actions/checkout@v2
-
-      - name: cache
-        uses: actions/cache@v2
+      - name: "Cache"
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cargo/registry
@@ -29,21 +19,24 @@ jobs:
             ./target
           key: ${{ runner.os }}-${{ hashFiles('**/Cargo.toml','**/Cargo.lock') }}
 
-      - name: Set up JDK
-        uses: actions/setup-java@v2
+      - name: "Set up JDK"
+        uses: actions/setup-java@v3
         with:
           distribution: temurin
-          java-version: 11
+          java-version: 17
 
-      - name: Install rust android targets
+      - name: "Set default Rust version to 1.77.1"
+        run: rustup default 1.77.1
+
+      - name: "Install Rust Android targets"
         run: rustup target add x86_64-linux-android aarch64-linux-android armv7-linux-androideabi
 
-      - name: Build bdk-android library
+      - name: "Build bdk-android library"
         run: |
           cd bdk-android
           ./gradlew buildAndroidLib
 
-      - name: Publish to Maven Local and Maven Central
+      - name: "Publish to Maven Central"
         env:
           ORG_GRADLE_PROJECT_signingKeyId: ${{ secrets.PGP_KEY_ID }}
           ORG_GRADLE_PROJECT_signingKey: ${{ secrets.PGP_SECRET_KEY }}

.github/workflows/publish-jvm.yaml

@@ -2,14 +2,14 @@ name: Publish bdk-jvm to Maven Central
 on: [workflow_dispatch]
 
 jobs:
-  build-jvm-macOS-M1-native-lib:
-    name: Create M1 and x86_64 JVM native binaries
+  build-macOS-native-libs:
+    name: "Create M1 and x86_64 native binaries"
     runs-on: macos-12
     steps:
-      - name: Checkout publishing branch
-        uses: actions/checkout@v2
+      - name: "Checkout publishing branch"
+        uses: actions/checkout@v3
 
-      - name: Cache
+      - name: "Cache"
         uses: actions/cache@v3
         with:
           path: |
@@ -18,42 +18,68 @@ jobs:
             ./target
           key: ${{ runner.os }}-${{ hashFiles('**/Cargo.toml','**/Cargo.lock') }}
 
-      - name: Set up JDK
-        uses: actions/setup-java@v2
+      - name: "Set up JDK"
+        uses: actions/setup-java@v3
         with:
           distribution: temurin
-          java-version: 11
+          java-version: 17
 
-      - name: Install aarch64 Rust target
+      - name: "Set default Rust version to 1.77.1"
+        run: rustup default 1.77.1
+
+      - name: "Install aarch64 Rust target"
         run: rustup target add aarch64-apple-darwin
 
-      - name: Build bdk-jvm library
+      - name: "Build bdk-jvm library"
         run: |
           cd bdk-jvm
           ./gradlew buildJvmLib
 
-      # build aarch64 + x86_64 native libraries and upload
-      - name: Upload macOS native libraries for reuse in publishing job
+      - name: "Upload macOS native libraries for reuse in publishing job"
         uses: actions/upload-artifact@v3
         with:
-          # name: no name is required because we upload the entire directory
-          # the default name "artifact" will be used
+          name: artifact-macos
           path: /Users/runner/work/bdk-ffi/bdk-ffi/bdk-jvm/lib/src/main/resources/
 
-  build-jvm-full-library:
-    name: Create full bdk-jvm library
-    needs: [build-jvm-macOS-M1-native-lib]
-    runs-on: ubuntu-22.04
+  build-windows-native-lib:
+    name: "Create Windows native binaries"
+    runs-on: windows-2022
     steps:
-      - name: Checkout publishing branch
-        uses: actions/checkout@v2
+      - name: "Checkout publishing branch"
+        uses: actions/checkout@v3
 
-      - name: Update bdk-ffi git submodule
+      - name: "Set up JDK"
+        uses: actions/setup-java@v3
+        with:
+          distribution: temurin
+          java-version: 17
+
+      - name: "Set default Rust version to 1.77.1"
+        run: rustup default 1.77.1
+
+      - name: "Install x86_64-pc-windows-msvc Rust target"
+        run: rustup target add x86_64-pc-windows-msvc
+
+      - name: "Build bdk-jvm library"
         run: |
-          git submodule set-url bdk-ffi https://github.com/bitcoindevkit/bdk-ffi.git
-          git submodule update --init bdk-ffi
+          cd bdk-jvm
+          ./gradlew buildJvmLib
 
-      - name: Cache
+      - name: "Upload Windows native libraries for reuse in publishing job"
+        uses: actions/upload-artifact@v3
+        with:
+          name: artifact-windows
+          path: D:\a\bdk-ffi\bdk-ffi\bdk-jvm\lib\src\main\resources\
+
+  build-full-library:
+    name: Create full bdk-jvm library
+    needs: [build-macOS-native-libs, build-windows-native-lib]
+    runs-on: ubuntu-20.04
+    steps:
+      - name: "Checkout publishing branch"
+        uses: actions/checkout@v3
+
+      - name: "Cache"
         uses: actions/cache@v3
         with:
           path: |
@@ -62,26 +88,39 @@ jobs:
             ./target
           key: ${{ runner.os }}-${{ hashFiles('**/Cargo.toml','**/Cargo.lock') }}
 
-      - name: Set up JDK
-        uses: actions/setup-java@v2
+      - name: "Set up JDK"
+        uses: actions/setup-java@v3
         with:
           distribution: temurin
-          java-version: 11
+          java-version: 17
 
-      - name: Build bdk-jvm library
+      - name: "Set default Rust version to 1.77.1"
+        run: rustup default 1.77.1
+
+      - name: "Build bdk-jvm library"
         run: |
           cd bdk-jvm
           ./gradlew buildJvmLib
 
-      - name: Download macOS native libraries from previous job
+      - name: "Download macOS native binaries from previous job"
         uses: actions/download-artifact@v3
-        id: download
         with:
-          # download the artifact created in the prior job (named "artifact")
-          name: artifact
+          name: artifact-macos
           path: ./bdk-jvm/lib/src/main/resources/
 
-      - name: Publish to Maven Central
+      - name: "Download Windows native libraries from previous job"
+        uses: actions/download-artifact@v3
+        with:
+          name: artifact-windows
+          path: ./bdk-jvm/lib/src/main/resources/
+
+      - name: "Upload library code and binaries"
+        uses: actions/upload-artifact@v3
+        with:
+          name: artifact-full
+          path: ./bdk-jvm/lib/
+
+      - name: "Publish to Maven Central"
         env:
           ORG_GRADLE_PROJECT_signingKeyId: ${{ secrets.PGP_KEY_ID }}
           ORG_GRADLE_PROJECT_signingKey: ${{ secrets.PGP_SECRET_KEY }}

.github/workflows/publish-python.yaml

@@ -1,4 +1,4 @@
-name: Build and publish Python wheels
+name: Publish bdkpython to PyPI
 on: [workflow_dispatch]
 
 # We use manylinux2014 because older CentOS versions used by 2010 and 1 have a very old glibc version, which
@@ -7,9 +7,9 @@ on: [workflow_dispatch]
 # tries to load glibc and fails because it requires a more recent version.
 
 jobs:
-  build-manylinux2014-x86_64-wheel:
-    name: 'Build Manylinux 2014 x86_64 wheel'
-    runs-on: ubuntu-latest
+  build-manylinux2014-x86_64-wheels:
+    name: "Build Manylinux 2014 x86_64 wheel"
+    runs-on: ubuntu-20.04
     defaults:
       run:
         working-directory: bdk-python
@@ -17,127 +17,168 @@ jobs:
       image: quay.io/pypa/manylinux2014_x86_64
       env:
         PLAT: manylinux2014_x86_64
-        PYBIN: '/opt/python/${{ matrix.python }}/bin'
+        PYBIN: "/opt/python/${{ matrix.python }}/bin"
     strategy:
       matrix:
         python: # Update this list whenever the docker image is updated (check /opt/python/)
-          - cp36-cp36m
-          - cp37-cp37m
           - cp38-cp38
           - cp39-cp39
           - cp310-cp310
-          - pp37-pypy37_pp73
-          - pp38-pypy38_pp73
+          - cp311-cp311
+          - cp312-cp312
     steps:
-      - name: checkout
-        uses: actions/checkout@v2
+      - name: "Checkout"
+        uses: actions/checkout@v3
         with:
           submodules: true
-      - uses: actions-rs/toolchain@v1
+
+      - name: "Install Rust 1.77.1"
+        uses: actions-rs/toolchain@v1
         with:
-          toolchain: stable
-      - name: install requirements
-        run: ${PYBIN}/pip install -r requirements.txt
-      - name: generate bindings
-        run: bash generate.sh
-      - name: build wheel
-        run: ${PYBIN}/pip wheel . --no-deps -w /tmp/wheelhouse
-      - name: repair wheel
-        run: auditwheel repair /tmp/wheelhouse/* --plat "$PLAT" -w /tmp/wheelhouse-repaired
-      - uses: actions/upload-artifact@v2
+          toolchain: 1.77.1
+          
+      - name: "Generate bdk.py and binaries"
+        run: bash ./scripts/generate-linux.sh
+
+      - name: "Build wheel"
+        # Specifying the plat-name argument is necessary to build a wheel with the correct name,
+        # see issue #350 for more information
+        run: ${PYBIN}/python setup.py bdist_wheel --plat-name manylinux_2_17_x86_64 --verbose
+
+      - uses: actions/upload-artifact@v3
         with:
           name: bdkpython-manylinux2014-x86_64-${{ matrix.python }}
-          path: /tmp/wheelhouse-repaired/*.whl
+          path: /home/runner/work/bdk-ffi/bdk-ffi/bdk-python/dist/*.whl
 
-  build-macos-universal-wheel:
-    name: 'Build macOS universal wheel'
-    runs-on: macos-latest
+  build-macos-arm64-wheels:
+    name: "Build macOS arm64 wheel"
+    runs-on: macos-13
     defaults:
       run:
         working-directory: bdk-python
     strategy:
       matrix:
         python:
-          - '3.7'
-          - '3.8'
-          - '3.9'
-          - '3.10'
+          - "3.8"
+          - "3.9"
+          - "3.10"
+          - "3.11"
+          - "3.12"
     steps:
-      - name: checkout
-        uses: actions/checkout@v2
+      - name: "Checkout"
+        uses: actions/checkout@v3
         with:
           submodules: true
-      - uses: actions/setup-python@v2
+
+      - name: "Install Python"
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python }}
-      - run: python3 --version
-      - run: rustup target add aarch64-apple-darwin
-      - run: pip3 install --user -r requirements.txt
-      - run: pip3 install --user wheel
-      - run: bash generate.sh
-      - name: build wheel
-        env:
-          ARCHFLAGS: "-arch x86_64 -arch arm64"
-        run: python3 setup.py -v bdist_wheel
-      - uses: actions/upload-artifact@v2
-        with:
-          name: bdkpython-macos-${{ matrix.python }}
-          path: dist/*.whl
 
-  build-windows-wheel:
-    name: 'Build windows wheel'
-    runs-on: windows-latest
+      - name: "Generate bdk.py and binaries"
+        run: bash ./scripts/generate-macos-arm64.sh
+
+      - name: "Build wheel"
+        # Specifying the plat-name argument is necessary to build a wheel with the correct name,
+        # see issue #350 for more information
+        run: python3 setup.py bdist_wheel --plat-name macosx_11_0_arm64 --verbose
+
+      - name: "Upload artifacts"
+        uses: actions/upload-artifact@v3
+        with:
+          name: bdkpython-macos-arm64-${{ matrix.python }}
+          path: /Users/runner/work/bdk-ffi/bdk-ffi/bdk-python/dist/*.whl
+
+  build-macos-x86_64-wheels:
+    name: "Build macOS x86_64 wheel"
+    runs-on: macos-13
     defaults:
       run:
         working-directory: bdk-python
     strategy:
       matrix:
         python:
-          - '3.7'
-          - '3.8'
-          - '3.9'
-          - '3.10'
+          - "3.8"
+          - "3.9"
+          - "3.10"
+          - "3.11"
+          - "3.12"
     steps:
-      - name: checkout
-        uses: actions/checkout@v2
+      - name: "Checkout"
+        uses: actions/checkout@v3
         with:
           submodules: true
-      - uses: actions/setup-python@v2
+
+      - name: "Install Python"
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python }}
-      - run: python --version
-      - run: pip install --user -r requirements.txt
-      - run: bash generate.sh
-        shell: bash
-      - run: pip install --user wheel
-      - name: build wheel
-        run: python setup.py -v bdist_wheel
-      - uses: actions/upload-artifact@v2
+
+      - name: "Generate bdk.py and binaries"
+        run: bash ./scripts/generate-macos-x86_64.sh
+
+      - name: "Build wheel"
+        # Specifying the plat-name argument is necessary to build a wheel with the correct name,
+        # see issue #350 for more information
+        run: python3 setup.py bdist_wheel --plat-name macosx_11_0_x86_64 --verbose
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: bdkpython-macos-x86_64-${{ matrix.python }}
+          path: /Users/runner/work/bdk-ffi/bdk-ffi/bdk-python/dist/*.whl
+
+  build-windows-wheels:
+    name: "Build Windows wheel"
+    runs-on: windows-2022
+    defaults:
+      run:
+        working-directory: bdk-python
+    strategy:
+      matrix:
+        python:
+          - "3.8"
+          - "3.9"
+          - "3.10"
+          - "3.11"
+          - "3.12"
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v3
+        with:
+          submodules: true
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python }}
+
+      - name: "Generate bdk.py and binaries"
+        run: bash ./scripts/generate-windows.sh
+
+      - name: "Build wheel"
+        run: python setup.py bdist_wheel --verbose
+
+      - name: "Upload artifacts"
+        uses: actions/upload-artifact@v3
         with:
           name: bdkpython-win-${{ matrix.python }}
-          path: dist/*.whl
+          path: D:\a\bdk-ffi\bdk-ffi\bdk-python\dist\*.whl
 
   publish-pypi:
-    name: 'Publish on PyPI'
-    runs-on: ubuntu-latest
+    name: "Publish on PyPI"
+    runs-on: ubuntu-20.04
     defaults:
       run:
         working-directory: bdk-python
-    needs: [build-manylinux2014-x86_64-wheel, build-macos-universal-wheel, build-windows-wheel]
-    # needs: [build-macos-universal-wheel]
+    needs: [build-manylinux2014-x86_64-wheels, build-macos-arm64-wheels, build-macos-x86_64-wheels, build-windows-wheels]
     steps:
-      - name: Checkout
-        uses: actions/checkout@v2
+      - name: "Checkout"
+        uses: actions/checkout@v3
 
-      - name: 'Download artifacts in dist/ directory'
-        uses: actions/download-artifact@v2
+      - name: "Download artifacts in dist/ directory"
+        uses: actions/download-artifact@v3
         with:
           path: dist/
 
-      # - name: Display structure of downloaded files
-      #   run: ls -R
-
-      # - name: 'Publish on test PyPI'
+      # - name: "Publish on test PyPI"
       #   uses: pypa/gh-action-pypi-publish@release/v1
       #   with:
       #     user: __token__
@@ -145,7 +186,7 @@ jobs:
       #     repository_url: https://test.pypi.org/legacy/
       #     packages_dir: dist/*/
 
-      - name: 'Publish on PyPI'
+      - name: "Publish on PyPI"
         uses: pypa/gh-action-pypi-publish@release/v1
         with:
           user: __token__

.github/workflows/test-android.yaml

@@ -1,5 +1,6 @@
 name: Test Android
 on:
+  workflow_dispatch:
   push:
     paths:
       - "bdk-ffi/**"
@@ -9,27 +10,20 @@ on:
       - "bdk-ffi/**"
       - "bdk-android/**"
 
-env:
-  ANDROID_NDK_ROOT: /usr/local/lib/android/sdk/ndk/21.4.7075529
-  # By default, the new ubuntu-20.04 images use the following ANDROID_NDK_ROOT
-  # ANDROID_NDK_ROOT: /usr/local/lib/android/sdk/ndk/25.0.8775105
+# The default Android NDK on the ubuntu-22.04 image is 25.2.9519653
 
 jobs:
   build:
     runs-on: ubuntu-20.04
     steps:
-      - name: Install Android NDK 21.4.7075529
-        run: |
-          ANDROID_ROOT=/usr/local/lib/android
-          ANDROID_SDK_ROOT=${ANDROID_ROOT}/sdk
-          SDKMANAGER=${ANDROID_SDK_ROOT}/cmdline-tools/latest/bin/sdkmanager
-          echo "y" | $SDKMANAGER "ndk;21.4.7075529"
+      - name: "Show default version of NDK"
+        run: echo $ANDROID_NDK_ROOT
 
-      - name: Check out PR branch
-        uses: actions/checkout@v2
+      - name: "Check out PR branch"
+        uses: actions/checkout@v3
 
-      - name: cache
-        uses: actions/cache@v2
+      - name: "Cache"
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cargo/registry
@@ -37,21 +31,27 @@ jobs:
             ./target
           key: ${{ runner.os }}-${{ hashFiles('**/Cargo.toml','**/Cargo.lock') }}
 
-      - name: Set up JDK
-        uses: actions/setup-java@v2
+      - name: "Set up JDK"
+        uses: actions/setup-java@v3
         with:
           distribution: temurin
-          java-version: 11
+          java-version: 17
 
-      - name: Install rust android targets
+      - name: "Set default Rust version to 1.77.1"
+        run: rustup default 1.77.1
+
+      - name: "Install Rust Android targets"
         run: rustup target add x86_64-linux-android aarch64-linux-android armv7-linux-androideabi
 
-      - name: Build bdk-android library
+      - name: "Build Android library"
         run: |
           cd bdk-android
-          ./gradlew buildAndroidLib
+          ./gradlew buildAndroidLib --console=plain
 
-      - name: Run Android tests
-        run: |
-          cd bdk-android
-          ./gradlew test --console=rich
+# There are currently no unit tests for bdk-android (see the tests in bdk-jvm instead) and the 
+# integration tests require the macOS image which is not working with the older NDK version we
+# are using, so for now we just make sure that the library builds and omit the connectedTest
+#      - name: "Run Android connected tests"
+#        run: |
+#          cd bdk-android
+#          ./gradlew connectedAndroidTest --console=plain

.github/workflows/test-jvm.yaml

@@ -1,5 +1,6 @@
-name: Test JVM
+name: Test Kotlin/JVM
 on:
+  workflow_dispatch:
   push:
     paths:
       - "bdk-ffi/**"
@@ -13,11 +14,11 @@ jobs:
   build:
     runs-on: ubuntu-20.04
     steps:
-      - name: Check out PR branch
-        uses: actions/checkout@v2
+      - name: "Check out PR branch"
+        uses: actions/checkout@v3
 
-      - name: cache
-        uses: actions/cache@v2
+      - name: "Cache"
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cargo/registry
@@ -25,18 +26,16 @@ jobs:
             ./target
           key: ${{ runner.os }}-${{ hashFiles('**/Cargo.toml','**/Cargo.lock') }}
 
-      - name: Set up JDK
-        uses: actions/setup-java@v2
+      - name: "Set up JDK"
+        uses: actions/setup-java@v3
         with:
           distribution: temurin
-          java-version: 11
+          java-version: 17
 
-      - name: Build bdk-jvm library
+      - name: "Set default Rust version to 1.77.1"
+        run: rustup default 1.77.1
+
+      - name: "Run JVM tests"
         run: |
           cd bdk-jvm
-          ./gradlew buildJvmLib
-
-      - name: Run JVM tests
-        run: |
-          cd bdk-jvm
-          ./gradlew test --console=rich
+          ./gradlew test -P excludeConnectedTests

.github/workflows/test-python.yaml

@@ -0,0 +1,199 @@
+name: Test Python
+on:
+  workflow_dispatch:
+  push:
+    paths:
+      - "bdk-ffi/**"
+      - "bdk-python/**"
+  pull_request:
+    paths:
+      - "bdk-ffi/**"
+      - "bdk-python/**"
+
+# We use manylinux2014 because older CentOS versions used by 2010 and 1 have a very old glibc version, which
+# makes it very hard to use GitHub's javascript actions (checkout, upload-artifact, etc).
+# They mount their own nodejs interpreter inside your container, but since that's not statically linked it
+# tries to load glibc and fails because it requires a more recent version.
+
+jobs:
+  build-manylinux2014-x86_64-wheels:
+    name: "Build and test Manylinux 2014 x86_64 wheels"
+    runs-on: ubuntu-20.04
+    defaults:
+      run:
+        working-directory: bdk-python
+    container:
+      image: quay.io/pypa/manylinux2014_x86_64
+      env:
+        PLAT: manylinux2014_x86_64
+        PYBIN: "/opt/python/${{ matrix.python }}/bin"
+    strategy:
+      matrix:
+        python:
+          - cp38-cp38
+          - cp39-cp39
+          - cp310-cp310
+          - cp311-cp311
+          - cp312-cp312
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v3
+        with:
+          submodules: true
+
+      - name: "Install Rust 1.77.1"
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: 1.77.1
+          
+      - name: "Generate bdk.py and binaries"
+        run: bash ./scripts/generate-linux.sh
+
+      - name: "Build wheel"
+        # Specifying the plat-name argument is necessary to build a wheel with the correct name,
+        # see issue #350 for more information
+        run: ${PYBIN}/python setup.py bdist_wheel --plat-name manylinux_2_17_x86_64 --verbose
+
+      - name: "Install wheel"
+        run: ${PYBIN}/pip install ./dist/*.whl
+
+      - name: "Run tests"
+        run: ${PYBIN}/python -m unittest discover --start "./tests/" --pattern "test_offline_*.py" --verbose
+
+      - name: "Upload artifact test"
+        uses: actions/upload-artifact@v3
+        with:
+          name: bdkpython-manylinux2014-x86_64-${{ matrix.python }}
+          path: /home/runner/work/bdk-ffi/bdk-ffi/bdk-python/dist/*.whl
+
+  build-macos-arm64-wheels:
+    name: "Build and test macOS arm64 wheels"
+    runs-on: macos-13
+    defaults:
+      run:
+        working-directory: bdk-python
+    strategy:
+      matrix:
+        python:
+          - "3.8"
+          - "3.9"
+          - "3.10"
+          - "3.11"
+          - "3.12"
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v3
+        with:
+          submodules: true
+
+      - name: "Install Python"
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python }}
+
+      - name: "Generate bdk.py and binaries"
+        run: bash ./scripts/generate-macos-arm64.sh
+
+      - name: "Build wheel"
+        # Specifying the plat-name argument is necessary to build a wheel with the correct name,
+        # see issue #350 for more information
+        run: python3 setup.py bdist_wheel --plat-name macosx_11_0_arm64 --verbose
+
+      # You can't install the arm64 wheel on the CI, so we skip these steps and simply test that the wheel builds
+      # - name: "Install wheel and run tests"
+      #   run: |
+      #     pip3 install ./dist/*.whl
+      #     python3 -m unittest discover --start "./tests/" --pattern "test_offline_*.py" --verbose
+
+      - name: "Upload artifact test"
+        uses: actions/upload-artifact@v3
+        with:
+          name: bdkpython-macos-arm64-${{ matrix.python }}
+          path: /Users/runner/work/bdk-ffi/bdk-ffi/bdk-python/dist/*.whl
+
+  build-macos-x86_64-wheels:
+    name: "Build and test macOS x86_64 wheels"
+    runs-on: macos-13
+    defaults:
+      run:
+        working-directory: bdk-python
+    strategy:
+      matrix:
+        python:
+          - "3.8"
+          - "3.9"
+          - "3.10"
+          - "3.11"
+          - "3.12"
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v3
+        with:
+          submodules: true
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python }}
+
+      - name: "Generate bdk.py and binaries"
+        run: bash ./scripts/generate-macos-x86_64.sh
+
+      - name: "Build wheel"
+        # Specifying the plat-name argument is necessary to build a wheel with the correct name,
+        # see issue #350 for more information
+        run: python3 setup.py bdist_wheel --plat-name macosx_11_0_x86_64 --verbose
+
+      - name: "Install wheel"
+        run: pip3 install ./dist/*.whl
+
+      - name: "Run tests"
+        run: python3 -m unittest discover --start "./tests/" --pattern "test_offline_*.py" --verbose
+
+      - name: "Upload artifact test"
+        uses: actions/upload-artifact@v3
+        with:
+          name: bdkpython-macos-x86_64-${{ matrix.python }}
+          path: /Users/runner/work/bdk-ffi/bdk-ffi/bdk-python/dist/*.whl
+
+  build-windows-wheels:
+    name: "Build and test Windows wheels"
+    runs-on: windows-2022
+    defaults:
+      run:
+        working-directory: bdk-python
+    strategy:
+      matrix:
+        python:
+          - "3.8"
+          - "3.9"
+          - "3.10"
+          - "3.11"
+          - "3.12"
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v3
+        with:
+          submodules: true
+
+      - name: "Install Python"
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python }}
+
+      - name: "Generate bdk.py and binaries"
+        run: bash ./scripts/generate-windows.sh
+
+      - name: "Build wheel"
+        run: python setup.py bdist_wheel --verbose
+
+      - name: "Upload artifact test"
+        uses: actions/upload-artifact@v3
+        with:
+          name: bdkpython-windows-${{ matrix.python }}
+          path: D:\a\bdk-ffi\bdk-ffi\bdk-python\dist\*.whl
+
+      - name: "Install dependencies"
+        run: Get-ChildItem 'D:\a\bdk-ffi\bdk-ffi\bdk-python\dist\*.whl' | ForEach-Object {pip install $_.FullName}
+        shell: powershell
+
+      - name: "Run tests"
+        run: python -m unittest discover --start "./tests/" --pattern "test_offline_*.py" --verbose

.github/workflows/test-swift.yaml

@@ -1,5 +1,6 @@
 name: Test Swift
 on:
+  workflow_dispatch:
   push:
     paths:
       - "bdk-ffi/**"
@@ -11,41 +12,16 @@ on:
 
 jobs:
   build:
+    name: "Build and test"
     runs-on: macos-12
     steps:
-      - name: Checkout branch
-        uses: actions/checkout@v2
+      - name: "Checkout"
+        uses: actions/checkout@v3
 
-      - name: Install Rust targets
-        run: |
-          rustup install nightly-x86_64-apple-darwin
-          rustup component add rust-src --toolchain nightly-x86_64-apple-darwin
-          rustup target add aarch64-apple-darwin x86_64-apple-darwin
-
-      - name: Run bdk-ffi-bindgen
-        working-directory: bdk-ffi
-        run: cargo run --package bdk-ffi-bindgen -- --language swift --out-dir ../bdk-swift/Sources/BitcoinDevKit
-
-      - name: Build bdk-ffi for x86_64-apple-darwin
-        run: cargo build --profile release-smaller --target x86_64-apple-darwin
-
-      - name: Build bdk-ffi for aarch64-apple-darwin
-        run: cargo build --profile release-smaller --target aarch64-apple-darwin
-
-      - name: Create lipo-ios-sim and lipo-macos
-        run: |
-          mkdir -p target/lipo-macos/release-smaller
-          lipo target/aarch64-apple-darwin/release-smaller/libbdkffi.a target/x86_64-apple-darwin/release-smaller/libbdkffi.a -create -output target/lipo-macos/release-smaller/libbdkffi.a
-
-      - name: Create bdkFFI.xcframework
+      - name: "Build Swift package"
         working-directory: bdk-swift
-        run: |
-          mv Sources/BitcoinDevKit/bdk.swift Sources/BitcoinDevKit/BitcoinDevKit.swift
-          cp Sources/BitcoinDevKit/bdkFFI.h bdkFFI.xcframework/macos-arm64_x86_64/bdkFFI.framework/Headers
-          cp ../target/lipo-macos/release-smaller/libbdkffi.a bdkFFI.xcframework/macos-arm64_x86_64/bdkFFI.framework/bdkFFI
-          rm Sources/BitcoinDevKit/bdkFFI.h
-          rm Sources/BitcoinDevkit/bdkFFI.modulemap
+        run: bash ./build-local-swift.sh
 
-      - name: Run Swift tests
+      - name: "Run Swift tests"
         working-directory: bdk-swift
-        run: swift test
+        run: swift test --skip LiveWalletTests --skip LiveTxBuilderTests

.gitignore

@@ -18,7 +18,7 @@ bdk.kt
 
 # Swift related
 /.build
-/.swiftpm
+.swiftpm
 /Packages
 /*.xcodeproj
 xcuserdata/
@@ -31,3 +31,6 @@ bdkFFI.h
 BitcoinDevKit.swift
 bdk.swift
 .build
+
+# Python related
+__pycache__

CHANGELOG.md

@@ -1,13 +1,156 @@
 # Changelog
-All notable changes to this project prior to release **0.9.0** are documented in this file. Future
-changelog information can be found in each release's git tag and can be viewed with `git tag -ln100 "v*"`.
-Changelog info is also documented on the [GitHub releases](https://github.com/bitcoindevkit/bdk-ffi/releases)
-page. See [DEVELOPMENT_CYCLE.md](DEVELOPMENT_CYCLE.md) for more details.
+Changelog information can also be found in each release's git tag (which can be viewed with `git tag -ln100 "v*"`), as well as on the [GitHub releases](https://github.com/bitcoindevkit/bdk-ffi/releases) page. See [DEVELOPMENT_CYCLE.md](DEVELOPMENT_CYCLE.md) for more details.
 
-The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
-and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [1.0.0-alpha.7]
+This release brings back into the 1.0 API a number of APIs from the 0.31 release, and adds the new flat file persistence feature, as well as more fine-grain errors.
+
+## [1.0.0-alpha.2a]
+This release is the first alpha release of the 1.0 API for the bindings libraries. Here is what is now available:
+- Create and recover wallets using descriptors, including the four descriptor templates
+- Sync a wallet using a blocking Esplora client
+- Query the wallet for balance and addresses
+- Create and sign transactions using the transaction builder
+- Broadcast transactions
+
+## [0.31.0]
+This release updates the bindings libraries to bdk version 0.29.0, updating rust-bitcoin to version 0.30.2.
+
+- APIs Changed:
+  - `BumpFeeTxBuilder.allow_shrinking()` now takes a `Script` as its argument [#443]
+  - The `Address` constructor now takes a `Network` argument [#443]
+  - The `Payload::PubkeyHash` and `Payload::ScriptHash` now have string arguments instead of byte arrays [#443]
+- APIs Added:
+  - The `Address` type now has the `is_valid_for_network()` method [#443]
+
+[#443]: https://github.com/bitcoindevkit/bdk-ffi/pull/443
+
+## [0.30.0]
+This release has a new API and a few internal optimizations and refactorings.
+
+- APIs Added
+  - Add BIP-86 descriptor templates [#388]
+
+[#388]: https://github.com/bitcoindevkit/bdk-ffi/pull/388
+
+## [0.29.0]
+This release has a number of new APIs, and adds support for Windows in bdk-jvm.
+
+Changelog
+- Add support for Windows in bdk-jvm [#336]
+- Add support for older version of Linux distros in bdk-jvm [#345]
+- APIs added
+  - Expose `is_mine()` method on the `Wallet` type [#355]
+  - Expose `to_bytes()` method on the `Script` type [#369]
+
+[#336]: https://github.com/bitcoindevkit/bdk-ffi/pull/336
+[#345]: https://github.com/bitcoindevkit/bdk-ffi/pull/345
+[#355]: https://github.com/bitcoindevkit/bdk-ffi/pull/355
+[#369]: https://github.com/bitcoindevkit/bdk-ffi/pull/369
+
+## [v0.28.0]
+- Update BDK to version 0.28.0 [#341]
+- Drop support of pypy releases of Python libraries [#351]
+- Drop support for Python 3.6 and 3.7 [#351]
+- Drop support for very old Linux versions that do not support the manylinux_2_17_x86_64 platform tag [#351]
+- APIs changed:
+  - Expose Address payload and network properties. [#325]
+  - Add SignOptions to Wallet.sign() params. [#326]
+  - address field on `AddressInfo` type is now of type `Address` [#333]
+  - new PartiallySignedTransaction.json_serialize() function to get JSON serialized value of all PSBT fields. [#334]
+  - Add from_script constructor to `Address` type [#337]
+
+[#325]: https://github.com/bitcoindevkit/bdk-ffi/pull/325
+[#326]: https://github.com/bitcoindevkit/bdk-ffi/pull/326
+[#333]: https://github.com/bitcoindevkit/bdk-ffi/pull/333
+[#334]: https://github.com/bitcoindevkit/bdk-ffi/pull/334
+[#337]: https://github.com/bitcoindevkit/bdk-ffi/pull/337
+[#341]: https://github.com/bitcoindevkit/bdk-ffi/pull/341
+[#351]: https://github.com/bitcoindevkit/bdk-ffi/pull/351
+
+## [v0.27.1]
+- Update BDK to version 0.27.1 [#312]
+- APIs changed
+  - `PartiallySignedTransaction.extract_tx()` returns a `Transaction` instead of the transaction bytes. [#296]
+  - `Blockchain.broadcast()` takes a `Transaction` instead of a `PartiallySignedTransaction`. [#296]
+- APIs added
+  - New `Transaction` structure that can be created from or serialized to consensus encoded bytes. [#296]
+  - Add Wallet.get_internal_address() API [#304]
+  - Add `AddressIndex::Peek(index)` and `AddressIndex::Reset(index)` APIs [#305]
+
+[#296]: https://github.com/bitcoindevkit/bdk-ffi/pull/296
+[#304]: https://github.com/bitcoindevkit/bdk-ffi/pull/304
+[#305]: https://github.com/bitcoindevkit/bdk-ffi/pull/305
+[#312]: https://github.com/bitcoindevkit/bdk-ffi/pull/312
+
+## [v0.26.0]
+- Update BDK to version 0.26.0 [#288]
+- APIs changed
+  - The descriptor and change_descriptor arguments on the wallet constructor now take a `Descriptor` instead of a `String`. [#260]
+  - TxBuilder.drain_to() argument is now `Script` instead of address `String`. [#279]
+- APIs added
+  - Added RpcConfig, BlockchainConfig::Rpc, and Auth [#125]
+  - Added Descriptor type in [#260] with the following methods:
+    - Default constructor requires a descriptor in String format and a Network
+    - new_bip44 constructor returns a Descriptor with structure pkh(key/44'/{0,1}'/0'/{0,1}/*)
+    - new_bip44_public constructor returns a Descriptor with structure pkh(key/{0,1}/*)
+    - new_bip49 constructor returns a Descriptor with structure sh(wpkh(key/49'/{0,1}'/0'/{0,1}/*))
+    - new_bip49_public constructor returns a Descriptor with structure sh(wpkh(key/{0,1}/*))
+    - new_bip84 constructor returns a Descriptor with structure wpkh(key/84'/{0,1}'/0'/{0,1}/*)
+    - new_bip84_public constructor returns a Descriptor with structure wpkh(key/{0,1}/*)
+    - as_string returns the public version of the output descriptor
+    - as_string_private returns the private version of the output descriptor if available, otherwise return the public version
+
+[#125]: https://github.com/bitcoindevkit/bdk-ffi/pull/125
+[#260]: https://github.com/bitcoindevkit/bdk-ffi/pull/260
+[#279]: https://github.com/bitcoindevkit/bdk-ffi/pull/279
+[#288]: https://github.com/bitcoindevkit/bdk-ffi/pull/288
+
+## [v0.25.0]
+- Update BDK to version 0.25.0 [#272]
+- APIs Added:
+  - from_string() constructors now available on DescriptorSecretKey and DescriptorPublicKey [#247]
+
+[#247]: https://github.com/bitcoindevkit/bdk-ffi/pull/247
+[#272]: https://github.com/bitcoindevkit/bdk-ffi/pull/272
+
+## [v0.11.0]
+- Update BDK to version 0.24.0 [#221]
+- APIs changed
+  - The constructor on the DescriptorSecretKey type now takes a Mnemonic instead of a String.
+- APIs added
+  - Added Mnemonic struct [#219] with following methods:
+    - new(word_count: WordCount) generates and returns Mnemonic with random entropy
+    - from_string(mnemonic: String) converts string Mnemonic to Mnemonic type with error
+    - from_entropy(entropy: Vec<u8>) generates and returns Mnemonic with given entropy
+    - as_string() view Mnemonic as string
+- APIs removed
+  - generate_mnemonic(word_count: WordCount)
+
+[#219]: https://github.com/bitcoindevkit/bdk-ffi/pull/219
+[#221]: https://github.com/bitcoindevkit/bdk-ffi/pull/221
+
+## [v0.10.0]
+- Update BDK to version 0.23.0 [#204]
+- Update uniffi-rs to latest version 0.21.0 [#216]
+- Breaking Changes
+  - Changed `TxBuilder.finish()` to return new `TxBuilderResult` [#209]
+  - `TxBuilder.add_recipient()` now takes a `Script` instead of an `Address` [#192]
+  - `AddressAmount` is now `ScriptAmount` [#192]
+- APIs Added
+  - Added `TxBuilderResult` with PSBT and TransactionDetails [#209]
+  - `Address` and `Script` structs have been added [#192]
+  - Add `PartiallySignedBitcoinTransaction.extract_tx()` function [#192]
+  - Add `secret_bytes()` method on the `DescriptorSecretKey` [#199]
+  - Add `PartiallySignedBitcoinTransaction.combine()` method [#200]
+
+[#192]: https://github.com/bitcoindevkit/bdk-ffi/pull/192
+[#199]: https://github.com/bitcoindevkit/bdk-ffi/pull/199
+[#200]: https://github.com/bitcoindevkit/bdk-ffi/pull/200
+[#204]: https://github.com/bitcoindevkit/bdk-ffi/pull/204
+[#209]: https://github.com/bitcoindevkit/bdk-ffi/pull/209
+[#216]: https://github.com/bitcoindevkit/bdk-ffi/pull/216
 
 ## [v0.9.0]
 - Breaking Changes
@@ -22,7 +165,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - APIs Added [#154]
   - `generate_mnemonic()`, returns string mnemonic
   - `interface DescriptorSecretKey`
-    - `new(Network, string_mnenoinc, password)`, contructs DescriptorSecretKey
+    - `new(Network, string_mnenoinc, password)`, constructs DescriptorSecretKey
     - `derive(DerivationPath)`, derives and returns child DescriptorSecretKey
     - `extend(DerivationPath)`, extends and returns DescriptorSecretKey
     - `as_public()`, returns DescriptorSecretKey as DescriptorPublicKey
@@ -102,9 +245,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 [BIP 0174]:https://github.com/bitcoin/bips/blob/master/bip-0174.mediawiki#encoding
 
-## [v0.2.0]
-
-[unreleased]: https://github.com/bitcoindevkit/bdk-ffi/compare/v0.9.0...HEAD
+[1.0.0-alpha.7]: https://github.com/bitcoindevkit/bdk-ffi/compare/v1.0.0-alpha.2a...v1.0.0-alpha.7
+[1.0.0-alpha.2a]: https://github.com/bitcoindevkit/bdk-ffi/compare/v0.31.0...v1.0.0-alpha.2a
+[v0.31.0]: https://github.com/bitcoindevkit/bdk-ffi/compare/v0.30.0...v0.31.0
+[v0.30.0]: https://github.com/bitcoindevkit/bdk-ffi/compare/v0.29.0...v0.30.0
+[v0.29.0]: https://github.com/bitcoindevkit/bdk-ffi/compare/v0.28.0...v0.29.0
+[v0.28.0]: https://github.com/bitcoindevkit/bdk-ffi/compare/v0.27.1...v0.28.0
+[v0.27.1]: https://github.com/bitcoindevkit/bdk-ffi/compare/v0.26.0...v0.27.1
+[v0.26.0]: https://github.com/bitcoindevkit/bdk-ffi/compare/v0.25.0...v0.26.0
+[v0.25.0]: https://github.com/bitcoindevkit/bdk-ffi/compare/v0.11.0...v0.25.0
+[v0.11.0]: https://github.com/bitcoindevkit/bdk-ffi/compare/v0.10.0...v0.11.0
+[v0.10.0]: https://github.com/bitcoindevkit/bdk-ffi/compare/v0.9.0...v0.10.0
 [v0.9.0]: https://github.com/bitcoindevkit/bdk-ffi/compare/v0.8.0...v0.9.0
 [v0.8.0]: https://github.com/bitcoindevkit/bdk-ffi/compare/v0.7.0...v0.8.0
 [v0.7.0]: https://github.com/bitcoindevkit/bdk-ffi/compare/v0.6.0...v0.7.0

Cargo.toml

@@ -1,12 +0,0 @@
-[workspace]
-members = ["bdk-ffi", "bdk-ffi-bindgen"]
-default-members = ["bdk-ffi", "bdk-ffi-bindgen"]
-exclude = ["api-docs", "bdk-android", "bdk-jvm", "bdk-python", "bdk-swift"]
-
-[profile.release-smaller]
-inherits = "release"
-opt-level = 'z'     # Optimize for size.
-lto = true          # Enable Link Time Optimization
-codegen-units = 1   # Reduce number of codegen units to increase optimizations.
-panic = 'abort'     # Abort on panic
-strip = true        # Strip symbols from binary*

README.md

@@ -7,9 +7,12 @@
     <a href="https://discord.gg/d7NkDKm"><img alt="Chat on Discord" src="https://img.shields.io/discord/753336465005608961?logo=discord"></a>
 </p>
 
+## 🚨 Warning 🚨
+The `master` branch of this repository is being migrated to the [bdk 1.0 API](https://github.com/bitcoindevkit/bdk) and is incomplete. For production-ready libraries, use the [`0.31.X`](https://github.com/bitcoindevkit/bdk-ffi/tree/release/0.30) releases.
+
+## Readme
 The workspace in this repository creates the `libbdkffi` multi-language library for the Rust-based 
-[bdk] library from the [Bitcoin Dev Kit] project. The `bdk-ffi-bindgen` package builds a tool for 
-generating the actual language binding code used to access the `libbdkffi` library.
+[bdk] library from the [Bitcoin Dev Kit] project.
 
 Each supported language and the platform(s) it's packaged for has its own directory. The Rust code in this project is in the bdk-ffi directory and is a wrapper around the [bdk] library to expose its APIs in a uniform way using the [mozilla/uniffi-rs] bindings generator for each supported target language.
 
@@ -23,25 +26,21 @@ The below directories (a separate repository in the case of bdk-swift) include i
 | Swift    | iOS, macOS            | [bdk-swift (GitHub)]          | [Readme bdk-swift]     |                       |
 | Python   | linux, macOS, Windows | [bdk-python (PyPI)]           | [Readme bdk-python]    |                       |
 
-## Language bindings generator tool
-Use the `bdk-ffi-bindgen` tool to generate language binding code for the above supported languages. 
-To run `bdk-ffi-bindgen` and see the available options use the command:
-```shell
-cargo run -p bdk-ffi-bindgen -- --help
+## Building and Testing the Libraries
+If you are familiar with the build tools for the specific languages you wish to build the libraries for, you can use their normal build/test workflows. We also include some [just](https://just.systems/) files to simplify the work across different languages. If you have the just tool installed on your system, you can simply call the commands defined in the `justfile`s, for example:
+```sh
+cd bdk-android
+
+just build
+just offlinetests
+just publishlocal
 ```
 
+## Minimum Supported Rust Version (MSRV)
+This library should compile with any combination of features with Rust 1.77.1.
+
 ## Contributing
-
-### Adding new structs and functions
-See the [UniFFI User Guide](https://mozilla.github.io/uniffi-rs/)
-
-#### For pass by value objects
-1. Create new rust struct with only fields that are supported UniFFI types
-2. Update mapping `bdk.udl` file with new `dictionary`
-
-#### For pass by reference values
-1. Create wrapper rust struct/impl with only fields that are `Sync + Send`
-2. Update mapping `bdk.udl` file with new `interface`
+To add new structs and functions, see the [UniFFI User Guide](https://mozilla.github.io/uniffi-rs/) and the [uniffi-examples](https://thunderbiscuit.github.io/uniffi-examples/) repository.
 
 ## Goals
 1. Language bindings should feel idiomatic in target languages/platforms
@@ -57,8 +56,8 @@ See the [UniFFI User Guide](https://mozilla.github.io/uniffi-rs/)
 repositories {
     mavenCentral()
 }
-dependencies {
-  implementation("org.bitcoindevkit:bdk-android:<version>")
+dependencies { 
+    implementation("org.bitcoindevkit:bdk-android:<version>")
 }
 ```
 
@@ -68,8 +67,8 @@ dependencies {
 repositories {
     mavenCentral()
 }
-dependencies {
-  implementation("org.bitcoindevkit:bdk-jvm:<version>")
+dependencies { 
+    implementation("org.bitcoindevkit:bdk-jvm:<version>")
 }
 ```
 

api-docs/kotlin/Module1.md

@@ -1,4 +0,0 @@
-# Module bdk-android
-The [bitcoindevkit](https://bitcoindevkit.org/) language bindings library for Android.
-
-# Package org.bitcoindevkit

api-docs/kotlin/Module2.md

@@ -1,4 +0,0 @@
-# Module bdk-jvm
-The [bitcoindevkit](https://bitcoindevkit.org/) language bindings library for Kotlin and Java on the JVM.
-
-# Package org.bitcoindevkit

api-docs/kotlin/build.gradle.kts

@@ -1,46 +0,0 @@
-import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
-
-plugins {
-    kotlin("jvm") version "1.7.10"
-
-    // API docs
-    id("org.jetbrains.dokka") version "1.7.10"
-}
-
-repositories {
-    mavenCentral()
-}
-
-dependencies {
-    testImplementation(kotlin("test"))
-}
-
-tasks.test {
-    useJUnitPlatform()
-}
-
-tasks.withType<KotlinCompile> {
-    kotlinOptions.jvmTarget = "1.8"
-}
-
-// tasks.withType<org.jetbrains.dokka.gradle.DokkaTask>().configureEach {
-//     dokkaSourceSets {
-//         named("main") {
-//             moduleName.set("bdk-android")
-//             moduleVersion.set("0.11.0")
-//             includes.from("Module1.md")
-//             samples.from("src/test/kotlin/org/bitcoindevkit/Samples.kt")
-//         }
-//     }
-// }
-
-tasks.withType<org.jetbrains.dokka.gradle.DokkaTask>().configureEach {
-    dokkaSourceSets {
-        named("main") {
-            moduleName.set("bdk-jvm")
-            moduleVersion.set("0.11.0")
-            includes.from("Module2.md")
-            samples.from("src/test/kotlin/org/bitcoindevkit/Samples.kt")
-        }
-    }
-}

api-docs/kotlin/deploy.sh

@@ -1,8 +0,0 @@
-./gradlew dokkaHtml
-cd build/dokka/html
-git init .
-git add .
-git switch --create gh-pages
-git commit -m "Deploy"
-git remote add origin git@github.com:bitcoindevkit/bdk-kotlin.git
-git push --set-upstream origin gh-pages --force

api-docs/kotlin/gradle.properties

@@ -1 +0,0 @@
-kotlin.code.style=official

api-docs/kotlin/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +0,0 @@
-distributionBase=GRADLE_USER_HOME
-distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.2-bin.zip
-zipStoreBase=GRADLE_USER_HOME
-zipStorePath=wrapper/dists

api-docs/kotlin/gradlew

@@ -1,234 +0,0 @@
-#!/bin/sh
-
-#
-# Copyright © 2015-2021 the original authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      https://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-##############################################################################
-#
-#   Gradle start up script for POSIX generated by Gradle.
-#
-#   Important for running:
-#
-#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
-#       noncompliant, but you have some other compliant shell such as ksh or
-#       bash, then to run this script, type that shell name before the whole
-#       command line, like:
-#
-#           ksh Gradle
-#
-#       Busybox and similar reduced shells will NOT work, because this script
-#       requires all of these POSIX shell features:
-#         * functions;
-#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
-#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
-#         * compound commands having a testable exit status, especially «case»;
-#         * various built-in commands including «command», «set», and «ulimit».
-#
-#   Important for patching:
-#
-#   (2) This script targets any POSIX shell, so it avoids extensions provided
-#       by Bash, Ksh, etc; in particular arrays are avoided.
-#
-#       The "traditional" practice of packing multiple parameters into a
-#       space-separated string is a well documented source of bugs and security
-#       problems, so this is (mostly) avoided, by progressively accumulating
-#       options in "$@", and eventually passing that to Java.
-#
-#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
-#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
-#       see the in-line comments for details.
-#
-#       There are tweaks for specific operating systems such as AIX, CygWin,
-#       Darwin, MinGW, and NonStop.
-#
-#   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
-#       within the Gradle project.
-#
-#       You can find Gradle at https://github.com/gradle/gradle/.
-#
-##############################################################################
-
-# Attempt to set APP_HOME
-
-# Resolve links: $0 may be a link
-app_path=$0
-
-# Need this for daisy-chained symlinks.
-while
-    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
-    [ -h "$app_path" ]
-do
-    ls=$( ls -ld "$app_path" )
-    link=${ls#*' -> '}
-    case $link in             #(
-      /*)   app_path=$link ;; #(
-      *)    app_path=$APP_HOME$link ;;
-    esac
-done
-
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
-APP_BASE_NAME=${0##*/}
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
-
-# Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD=maximum
-
-warn () {
-    echo "$*"
-} >&2
-
-die () {
-    echo
-    echo "$*"
-    echo
-    exit 1
-} >&2
-
-# OS specific support (must be 'true' or 'false').
-cygwin=false
-msys=false
-darwin=false
-nonstop=false
-case "$( uname )" in                #(
-  CYGWIN* )         cygwin=true  ;; #(
-  Darwin* )         darwin=true  ;; #(
-  MSYS* | MINGW* )  msys=true    ;; #(
-  NONSTOP* )        nonstop=true ;;
-esac
-
-CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
-
-
-# Determine the Java command to use to start the JVM.
-if [ -n "$JAVA_HOME" ] ; then
-    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
-        # IBM's JDK on AIX uses strange locations for the executables
-        JAVACMD=$JAVA_HOME/jre/sh/java
-    else
-        JAVACMD=$JAVA_HOME/bin/java
-    fi
-    if [ ! -x "$JAVACMD" ] ; then
-        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
-
-Please set the JAVA_HOME variable in your environment to match the
-location of your Java installation."
-    fi
-else
-    JAVACMD=java
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-
-Please set the JAVA_HOME variable in your environment to match the
-location of your Java installation."
-fi
-
-# Increase the maximum file descriptors if we can.
-if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
-    case $MAX_FD in #(
-      max*)
-        MAX_FD=$( ulimit -H -n ) ||
-            warn "Could not query maximum file descriptor limit"
-    esac
-    case $MAX_FD in  #(
-      '' | soft) :;; #(
-      *)
-        ulimit -n "$MAX_FD" ||
-            warn "Could not set maximum file descriptor limit to $MAX_FD"
-    esac
-fi
-
-# Collect all arguments for the java command, stacking in reverse order:
-#   * args from the command line
-#   * the main class name
-#   * -classpath
-#   * -D...appname settings
-#   * --module-path (only if needed)
-#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
-
-# For Cygwin or MSYS, switch paths to Windows format before running java
-if "$cygwin" || "$msys" ; then
-    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
-    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
-
-    JAVACMD=$( cygpath --unix "$JAVACMD" )
-
-    # Now convert the arguments - kludge to limit ourselves to /bin/sh
-    for arg do
-        if
-            case $arg in                                #(
-              -*)   false ;;                            # don't mess with options #(
-              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
-                    [ -e "$t" ] ;;                      #(
-              *)    false ;;
-            esac
-        then
-            arg=$( cygpath --path --ignore --mixed "$arg" )
-        fi
-        # Roll the args list around exactly as many times as the number of
-        # args, so each arg winds up back in the position where it started, but
-        # possibly modified.
-        #
-        # NB: a `for` loop captures its iteration list before it begins, so
-        # changing the positional parameters here affects neither the number of
-        # iterations, nor the values presented in `arg`.
-        shift                   # remove old arg
-        set -- "$@" "$arg"      # push replacement arg
-    done
-fi
-
-# Collect all arguments for the java command;
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
-#     shell script including quotes and variable substitutions, so put them in
-#     double quotes to make sure that they get re-expanded; and
-#   * put everything else in single quotes, so that it's not re-expanded.
-
-set -- \
-        "-Dorg.gradle.appname=$APP_BASE_NAME" \
-        -classpath "$CLASSPATH" \
-        org.gradle.wrapper.GradleWrapperMain \
-        "$@"
-
-# Use "xargs" to parse quoted args.
-#
-# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
-#
-# In Bash we could simply go:
-#
-#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
-#   set -- "${ARGS[@]}" "$@"
-#
-# but POSIX shell has neither arrays nor command substitution, so instead we
-# post-process each arg (as a line of input to sed) to backslash-escape any
-# character that might be a shell metacharacter, then use eval to reverse
-# that process (while maintaining the separation between arguments), and wrap
-# the whole thing up as a single "set" statement.
-#
-# This will of course break if any of these variables contains a newline or
-# an unmatched quote.
-#
-
-eval "set -- $(
-        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
-        xargs -n1 |
-        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
-        tr '\n' ' '
-    )" '"$@"'
-
-exec "$JAVACMD" "$@"

api-docs/kotlin/gradlew.bat

@@ -1,89 +0,0 @@
-@rem
-@rem Copyright 2015 the original author or authors.
-@rem
-@rem Licensed under the Apache License, Version 2.0 (the "License");
-@rem you may not use this file except in compliance with the License.
-@rem You may obtain a copy of the License at
-@rem
-@rem      https://www.apache.org/licenses/LICENSE-2.0
-@rem
-@rem Unless required by applicable law or agreed to in writing, software
-@rem distributed under the License is distributed on an "AS IS" BASIS,
-@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-@rem See the License for the specific language governing permissions and
-@rem limitations under the License.
-@rem
-
-@if "%DEBUG%" == "" @echo off
-@rem ##########################################################################
-@rem
-@rem  Gradle startup script for Windows
-@rem
-@rem ##########################################################################
-
-@rem Set local scope for the variables with windows NT shell
-if "%OS%"=="Windows_NT" setlocal
-
-set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
-set APP_BASE_NAME=%~n0
-set APP_HOME=%DIRNAME%
-
-@rem Resolve any "." and ".." in APP_HOME to make it shorter.
-for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
-
-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
-
-@rem Find java.exe
-if defined JAVA_HOME goto findJavaFromJavaHome
-
-set JAVA_EXE=java.exe
-%JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
-
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:findJavaFromJavaHome
-set JAVA_HOME=%JAVA_HOME:"=%
-set JAVA_EXE=%JAVA_HOME%/bin/java.exe
-
-if exist "%JAVA_EXE%" goto execute
-
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
-
-goto fail
-
-:execute
-@rem Setup the command line
-
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
-
-
-@rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
-
-:end
-@rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
-
-:fail
-rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
-rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
-
-:mainEnd
-if "%OS%"=="Windows_NT" endlocal
-
-:omega

api-docs/kotlin/settings.gradle.kts

@@ -1 +0,0 @@
-rootProject.name = "BDK Android and BDK JVM API Docs"

api-docs/kotlin/src/main/kotlin/org/bitcoindevkit/bdk.kt

@@ -1,595 +0,0 @@
-package org.bitcoindevkit
-
-/**
- * The cryptocurrency to act on.
- *
- * @sample org.bitcoindevkit.networkSample
- */
-enum class Network {
-    /** Bitcoin's mainnet. */
-    BITCOIN,
-
-    /** Bitcoin’s testnet. */
-    TESTNET,
-
-    /** Bitcoin’s signet. */
-    SIGNET,
-
-    /** Bitcoin’s regtest. */
-    REGTEST,
-}
-
-/**
- * A derived address and the index it was found at.
- *
- * @property index Child index of this address.
- * @property address Address.
- *
- * @sample org.bitcoindevkit.addressInfoSample
- */
-data class AddressInfo (
-    var index: UInt,
-    var address: String
-)
-
-/**
- * The address index selection strategy to use to derive an address from the wallet’s external descriptor.
- *
- * If you’re unsure which one to use, use `AddressIndex.NEW`.
- *
- * @sample org.bitcoindevkit.addressIndexSample
- */
-enum class AddressIndex {
-    /** Return a new address after incrementing the current descriptor index. */
-    NEW,
-
-    /** Return the address for the current descriptor index if it has not been used in a received transaction.
-     * Otherwise return a new address as with `AddressIndex.NEW`. Use with caution, if the wallet
-     * has not yet detected an address has been used it could return an already used address.
-     * This function is primarily meant for situations where the caller is untrusted;
-     * for example when deriving donation addresses on-demand for a public web page.
-     */
-    LAST_UNUSED,
-}
-
-/**
- * Balance differentiated in various categories.
- *
- * @property immature All coinbase outputs not yet matured.
- * @property trustedPending Unconfirmed UTXOs generated by a wallet tx.
- * @property untrustedPending Unconfirmed UTXOs received from an external wallet.
- * @property confirmed Confirmed and immediately spendable balance.
- * @property spendable The sum of trustedPending and confirmed coins.
- * @property total The whole balance visible to the wallet.
- *
- * @sample org.bitcoindevkit.balanceSample
- */
-data class Balance (
-    var immature: ULong,
-    var trustedPending: ULong,
-    var untrustedPending: ULong,
-    var confirmed: ULong,
-    var spendable: ULong,
-    var total: ULong
-)
-
-/**
- * Type that can contain any of the database configurations defined by the library.
- *
- * @sample org.bitcoindevkit.memoryDatabaseConfigSample
- * @sample org.bitcoindevkit.sqliteDatabaseConfigSample
- */
-sealed class DatabaseConfig {
-    /** Configuration for an in-memory database. */
-    object Memory : DatabaseConfig()
-
-    /** Configuration for a Sled database. */
-    data class Sled(val config: SledDbConfiguration) : DatabaseConfig()
-
-    /** Configuration for a SQLite database. */
-    data class Sqlite(val config: SqliteDbConfiguration) : DatabaseConfig()
-}
-
-/**
- * Configuration type for a SQLite database.
- *
- * @property path Main directory of the DB.
- *
- * @sample org.bitcoindevkit.sqliteDatabaseConfigSample
- */
-data class SqliteDbConfiguration(
-    var path: String,
-)
-
-/**
- * Configuration type for a SledDB database.
- *
- * @property path Main directory of the DB.
- * @property treeName Name of the database tree, a separated namespace for the data.
- */
-data class SledDbConfiguration(
-    var path: String,
-    var treeName: String,
-)
-
-/**
- * Configuration for an Electrum blockchain.
- *
- * @property url URL of the Electrum server (such as ElectrumX, Esplora, BWT) may start with `ssl://` or `tcp://` and include a port, e.g. `ssl://electrum.blockstream.info:60002`.
- * @property socks5 URL of the socks5 proxy server or a Tor service.
- * @property retry Request retry count.
- * @property timeout Request timeout (seconds).
- * @property stopGap Stop searching addresses for transactions after finding an unused gap of this length.
- *
- * @sample org.bitcoindevkit.electrumBlockchainConfigSample
- */
-data class ElectrumConfig (
-    var url: String,
-    var socks5: String?,
-    var retry: UByte,
-    var timeout: UByte?,
-    var stopGap: ULong
-)
-
-/**
- * Configuration for an Esplora blockchain.
- *
- * @property baseUrl Base URL of the esplora service, e.g. `https://blockstream.info/api/`.
- * @property proxy Optional URL of the proxy to use to make requests to the Esplora server.
- * @property concurrency Number of parallel requests sent to the esplora service (default: 4).
- * @property stopGap Stop searching addresses for transactions after finding an unused gap of this length.
- * @property timeout Socket timeout.
- *
- * @sample org.bitcoindevkit.esploraBlockchainConfigSample
- */
-data class EsploraConfig (
-    var baseUrl: String,
-    var proxy: String?,
-    var concurrency: UByte?,
-    var stopGap: ULong,
-    var timeout: ULong?
-)
-
-/**
- * Type that can contain any of the blockchain configurations defined by the library.
- *
- * @sample org.bitcoindevkit.electrumBlockchainConfigSample
- */
-sealed class BlockchainConfig {
-    /** Electrum client. */
-    data class Electrum(val config: ElectrumConfig) : BlockchainConfig()
-
-    /** Esplora client. */
-    data class Esplora(val config: EsploraConfig) : BlockchainConfig()
-}
-
-/**
- * A wallet transaction.
- *
- * @property fee Fee value (sats) if available. The availability of the fee depends on the backend. It’s never None with an Electrum server backend, but it could be None with a Bitcoin RPC node without txindex that receive funds while offline.
- * @property received Received value (sats) Sum of owned outputs of this transaction.
- * @property sent Sent value (sats) Sum of owned inputs of this transaction.
- * @property txid Transaction id.
- * @property confirmationTime If the transaction is confirmed, [BlockTime] contains height and timestamp of the block containing the transaction. This property is null for unconfirmed transactions.
- */
-data class TransactionDetails (
-    var fee: ULong?,
-    var received: ULong,
-    var sent: ULong,
-    var txid: String,
-    var confirmationTime: BlockTime?
-)
-
-/**
- * A blockchain backend.
- *
- * @constructor Create the new blockchain client.
- *
- * @param config The blockchain configuration required.
- *
- * @sample org.bitcoindevkit.blockchainSample
- */
-class Blockchain(
-    config: BlockchainConfig
-) {
-    /** Broadcast a transaction. */
-    fun broadcast(psbt: PartiallySignedBitcoinTransaction): String {}
-
-    /** Get the current height of the blockchain. */
-    fun getHeight(): UInt {}
-
-    /** Get the block hash of a given block. */
-    fun getBlockHash(height: UInt): String {}
-}
-
-/**
- * A partially signed bitcoin transaction.
- *
- * @constructor Build a new Partially Signed Bitcoin Transaction.
- *
- * @param psbtBase64 The PSBT in base64 format.
- */
-class PartiallySignedBitcoinTransaction(psbtBase64: String) {
-    /** Return the PSBT in string format, using a base64 encoding. */
-    fun serialize(): String {}
-
-    /** Get the txid of the PSBT. */
-    fun txid(): String {}
-
-    /** Return the transaction as bytes. */
-    fun extractTx(): List<UByte>
-
-    /**
-     * Combines this PartiallySignedTransaction with another PSBT as described by BIP 174.
-     * In accordance with BIP 174 this function is commutative i.e., `A.combine(B) == B.combine(A)`
-     */
-    fun combine(other: PartiallySignedBitcoinTransaction): PartiallySignedBitcoinTransaction
-}
-
-/**
- * A reference to a transaction output.
- *
- * @property txid The referenced transaction’s txid.
- * @property vout The index of the referenced output in its transaction’s vout.
- */
-data class OutPoint (
-    var txid: String,
-    var vout: UInt
-)
-
-/**
- * A transaction output, which defines new coins to be created from old ones.
- *
- * @property value The value of the output, in satoshis.
- * @property address The address of the output.
- */
-data class TxOut (
-    var value: ULong,
-    var address: String
-)
-
-/**
- * An unspent output owned by a [Wallet].
- *
- * @property outpoint Reference to a transaction output.
- * @property txout Transaction output.
- * @property keychain Type of keychain.
- * @property isSpent Whether this UTXO is spent or not.
- */
-data class LocalUtxo (
-    var outpoint: OutPoint,
-    var txout: TxOut,
-    var keychain: KeychainKind,
-    var isSpent: Boolean
-)
-
-/**
- * Types of keychains.
- */
-enum class KeychainKind {
-    /** External. */
-    EXTERNAL,
-
-    /** Internal, usually used for change outputs. */
-    INTERNAL,
-}
-
-/**
- * Block height and timestamp of a block.
- *
- * @property height Confirmation block height.
- * @property timestamp Confirmation block timestamp.
- */
-data class BlockTime (
-    var height: UInt,
-    var timestamp: ULong,
-)
-
-/**
- * A Bitcoin wallet.
- * The Wallet acts as a way of coherently interfacing with output descriptors and related transactions. Its main components are:
- * 1. Output descriptors from which it can derive addresses.
- * 2. A Database where it tracks transactions and utxos related to the descriptors.
- * 3. Signers that can contribute signatures to addresses instantiated from the descriptors.
- *
- * @constructor Create a BDK wallet.
- *
- * @param descriptor The main (or "external") descriptor.
- * @param changeDescriptor The change (or "internal") descriptor.
- * @param network The network to act on.
- * @param databaseConfig The database configuration.
- *
- * @sample org.bitcoindevkit.walletSample
- */
-class Wallet(
-    descriptor: String,
-    changeDescriptor: String,
-    network: Network,
-    databaseConfig: DatabaseConfig,
-) {
-    /**
-     * Return a derived address using the external descriptor, see [AddressIndex] for available address index
-     * selection strategies. If none of the keys in the descriptor are derivable (i.e. the descriptor does not end
-     * with a * character) then the same address will always be returned for any [AddressIndex].
-     */
-    fun getAddress(addressIndex: AddressIndex): AddressInfo {}
-
-    /** Return the balance, meaning the sum of this wallet’s unspent outputs’ values. Note that this method only operates on the internal database, which first needs to be [Wallet.sync] manually. */
-    fun getBalance(): ULong {}
-
-    /** Sign a transaction with all the wallet’s signers. */
-    fun sign(psbt: PartiallySignedBitcoinTransaction): Boolean {}
-
-    /** Return the list of transactions made and received by the wallet. Note that this method only operate on the internal database, which first needs to be [Wallet.sync] manually. */
-    fun listTransactions(): List<TransactionDetails> {}
-
-    /** Get the Bitcoin network the wallet is using. */
-    fun network(): Network {}
-
-    /** Sync the internal database with the blockchain. */
-    fun sync(blockchain: Blockchain, progress: Progress?) {}
-
-    /** Return the list of unspent outputs of this wallet. Note that this method only operates on the internal database, which first needs to be [Wallet.sync] manually. */
-    fun listUnspent(): List<LocalUtxo> {}
-}
-
-/**
- * Class that logs at level INFO every update received (if any).
- */
-class Progress {
-    /** Send a new progress update. The progress value should be in the range 0.0 - 100.0, and the message value is an optional text message that can be displayed to the user. */
-    fun update(progress: Float, message: String?) {}
-}
-
-/**
- * A transaction builder.
- *
- * After creating the TxBuilder, you set options on it until finally calling `.finish` to consume the builder and generate the transaction.
- *
- * Each method on the TxBuilder returns an instance of a new TxBuilder with the option set/added.
- *
- * @sample org.bitcoindevkit.txBuilderResultSample1
- * @sample org.bitcoindevkit.txBuilderResultSample2
- */
-class TxBuilder() {
-    /** Add data as an output using OP_RETURN. */
-    fun addData(data: List<UByte>): TxBuilder {}
-
-    /** Add a recipient to the internal list. */
-    fun addRecipient(script: Script, amount: ULong): TxBuilder {}
-
-    /** Set the list of recipients by providing a list of [ScriptAmount]. */
-    fun setRecipients(recipients: List<ScriptAmount>): TxBuilder {}
-
-    /** Add a utxo to the internal list of unspendable utxos. It’s important to note that the "must-be-spent" utxos added with [TxBuilder.addUtxo] have priority over this. See the Rust docs of the two linked methods for more details. */
-    fun addUnspendable(unspendable: OutPoint): TxBuilder {}
-
-    /** Add an outpoint to the internal list of UTXOs that must be spent. These have priority over the "unspendable" utxos, meaning that if a utxo is present both in the "utxos" and the "unspendable" list, it will be spent. */
-    fun addUtxo(outpoint: OutPoint): TxBuilder {}
-
-    /**
-     * Add the list of outpoints to the internal list of UTXOs that must be spent. If an error
-     * occurs while adding any of the UTXOs then none of them are added and the error is returned.
-     * These have priority over the "unspendable" utxos, meaning that if a utxo is present both
-     * in the "utxos" and the "unspendable" list, it will be spent.
-     */
-    fun addUtxos(outpoints: List<OutPoint>): TxBuilder {}
-
-    /** Do not spend change outputs. This effectively adds all the change outputs to the "unspendable" list. See [TxBuilder.unspendable]. */
-    fun doNotSpendChange(): TxBuilder {}
-
-    /** Only spend utxos added by [add_utxo]. The wallet will not add additional utxos to the transaction even if they are needed to make the transaction valid. */
-    fun manuallySelectedOnly(): TxBuilder {}
-
-    /** Only spend change outputs. This effectively adds all the non-change outputs to the "unspendable" list. See [TxBuilder.unspendable]. */
-    fun onlySpendChange(): TxBuilder {}
-
-    /**
-     * Replace the internal list of unspendable utxos with a new list. It’s important to note that the "must-be-spent" utxos
-     * added with [TxBuilder.addUtxo] have priority over these. See the Rust docs of the two linked methods for more details.
-     */
-    fun unspendable(unspendable: List<OutPoint>): TxBuilder {}
-
-    /** Set a custom fee rate. */
-    fun feeRate(satPerVbyte: Float): TxBuilder {}
-
-    /** Set an absolute fee. */
-    fun feeAbsolute(feeAmount: ULong): TxBuilder {}
-
-    /** Spend all the available inputs. This respects filters like [TxBuilder.unspendable] and the change policy. */
-    fun drainWallet(): TxBuilder {}
-
-    /**
-     * Sets the address to drain excess coins to. Usually, when there are excess coins they are
-     * sent to a change address generated by the wallet. This option replaces the usual change address
-     * with an arbitrary ScriptPubKey of your choosing. Just as with a change output, if the
-     * drain output is not needed (the excess coins are too small) it will not be included in the resulting
-     * transaction. The only difference is that it is valid to use [drainTo] without setting any ordinary recipients
-     * with [addRecipient] (but it is perfectly fine to add recipients as well). If you choose not to set any
-     * recipients, you should either provide the utxos that the transaction should spend via [addUtxos], or set
-     * [drainWallet] to spend all of them. When bumping the fees of a transaction made with this option,
-     * you probably want to use [BumpFeeTxBuilder.allowShrinking] to allow this output to be reduced to pay for the extra fees.
-     */
-    fun drainTo(address: String): TxBuilder {}
-
-    /** Enable signaling RBF. This will use the default `nsequence` value of `0xFFFFFFFD`. */
-    fun enableRbf(): TxBuilder {}
-
-    /**
-     * Enable signaling RBF with a specific nSequence value. This can cause conflicts if the wallet's descriptors
-     * contain an "older" (OP_CSV) operator and the given `nsequence` is lower than the CSV value. If the `nsequence`
-     * is higher than `0xFFFFFFFD` an error will be thrown, since it would not be a valid nSequence to signal RBF.
-     */
-    fun enableRbfWithSequence(nsequence: UInt): TxBuilder {}
-
-    /** Finish building the transaction. Returns a [TxBuilderResult]. */
-    fun finish(wallet: Wallet): TxBuilderResult {}
-}
-
-/**
- * A object holding a ScriptPubKey and an amount.
- *
- * @property script The ScriptPubKey.
- * @property amount The amount.
- */
-data class ScriptAmount (
-    var script: Script,
-    var amount: ULong
-)
-
-/**
- * The BumpFeeTxBuilder is used to bump the fee on a transaction that has been broadcast and has its RBF flag set to true.
- */
-class BumpFeeTxBuilder() {
-    /**
-     * Explicitly tells the wallet that it is allowed to reduce the amount of the output matching this scriptPubKey
-     * in order to bump the transaction fee. Without specifying this the wallet will attempt to find a change output
-     * to shrink instead. Note that the output may shrink to below the dust limit and therefore be removed. If it is
-     * preserved then it is currently not guaranteed to be in the same position as it was originally. Returns an error
-     * if scriptPubkey can’t be found among the recipients of the transaction we are bumping.
-     */
-    fun allowShrinking(address: String): BumpFeeTxBuilder {}
-
-    /** Enable signaling RBF. This will use the default `nsequence` value of `0xFFFFFFFD`. */
-    fun enableRbf(): BumpFeeTxBuilder {}
-
-    /**
-     * Enable signaling RBF with a specific nSequence value. This can cause conflicts if the wallet's descriptors
-     * contain an "older" (OP_CSV) operator and the given `nsequence` is lower than the CSV value. If the `nsequence`
-     * is higher than `0xFFFFFFFD` an error will be thrown, since it would not be a valid nSequence to signal RBF.
-     */
-    fun enableRbfWithSequence(nsequence: UInt): BumpFeeTxBuilder {}
-
-    /** Finish building the transaction. Returns a [TxBuilderResult]. */
-    fun finish(wallet: Wallet): TxBuilderResult {}
-}
-
-/**
- * A BIP-32 derivation path.
- *
- * @param path The derivation path. Must start with `m`. Use this type to derive or extend a [DescriptorSecretKey]
- * or [DescriptorPublicKey].
- */
-class DerivationPath(path: String) {}
-
-/**
- * An extended secret key.
- *
- * @param network The network this DescriptorSecretKey is to be used on.
- * @param mnemonic The mnemonic.
- * @param password The optional passphrase that can be provided as per BIP-39.
- *
- * @sample org.bitcoindevkit.descriptorSecretKeyDeriveSample
- * @sample org.bitcoindevkit.descriptorSecretKeyExtendSample
- */
-class DescriptorSecretKey(network: Network, mnemonic: Mnemonic, password: String?) {
-    /** Build a DescriptorSecretKey from a String */
-    fun fromString(secretKey: String): DescriptorSecretKey {}
-
-    /** Derive a private descriptor at a given path. */
-    fun derive(path: DerivationPath): DescriptorSecretKey {}
-
-    /** Extend the private descriptor with a custom path. */
-    fun extend(path: DerivationPath): DescriptorSecretKey {}
-
-    /** Return the public version of the descriptor. */
-    fun asPublic(): DescriptorPublicKey {}
-
-    /* Return the raw private key as bytes. */
-    fun secretBytes(): List<UByte>
-
-    /** Return the private descriptor as a string. */
-    fun asString(): String {}
-}
-
-/**
- * An extended public key.
- *
- * @param network The network this DescriptorPublicKey is to be used on.
- * @param mnemonic The mnemonic.
- * @param password The optional passphrase that can be provided as per BIP-39.
- */
-class DescriptorPublicKey(network: Network, mnemonic: String, password: String?) {
-    /** Build a DescriptorPublicKey from a String */
-    fun fromString(publicKey: String): DescriptorPublicKey {}
-
-    /** Derive a public descriptor at a given path. */
-    fun derive(path: DerivationPath): DescriptorPublicKey
-
-    /** Extend the public descriptor with a custom path. */
-    fun extend(path: DerivationPath): DescriptorPublicKey
-
-    /** Return the public descriptor as a string. */
-    fun asString(): String
-}
-
-/**
- * An enum describing entropy length (aka word count) in the mnemonic.
- */
-enum class WordCount {
-    /** 12 words mnemonic (128 bits entropy). */
-    WORDS12,
-
-    /** 15 words mnemonic (160 bits entropy). */
-    WORDS15,
-
-    /** 18 words mnemonic (192 bits entropy). */
-    WORDS18,
-
-    /** 21 words mnemonic (224 bits entropy). */
-    WORDS21,
-
-    /** 24 words mnemonic (256 bits entropy). */
-    WORDS24,
-}
-
-/**
- * The value returned from calling the `.finish()` method on the [TxBuilder] or [BumpFeeTxBuilder].
- *
- * @property psbt The PSBT
- * @property transactionDetails The transaction details.
- *
- * @sample org.bitcoindevkit.txBuilderResultSample1
- * @sample org.bitcoindevkit.txBuilderResultSample2
- */
-data class TxBuilderResult (
-    var psbt: PartiallySignedBitcoinTransaction,
-    var transactionDetails: TransactionDetails
-)
-
-/**
- * A bitcoin script.
- */
-class Script(rawOutputScript: List<UByte>)
-
-/**
- * A bitcoin address.
- *
- * @param address The address in string format.
- */
-class Address(address: String) {
-    /* Return the ScriptPubKey. */
-    fun scriptPubkey(): Script
-}
-
-/**
- * Mnemonic phrases are a human-readable version of the private keys. Supported number of words are 12, 15, 18, 21 and 24.
- *
- * @constructor Generates Mnemonic with a random entropy.
- * @param mnemonic The mnemonic as a string of space-separated words.
- *
- * @sample org.bitcoindevkit.mnemonicSample
- */
-class Mnemonic(mnemonic: String) {
-    /* Returns Mnemonic as string */
-    fun asString(): String
-
-    /* Parse a Mnemonic from a given string. */
-    fun fromString(): Mnemonic
-
-    /*
-     * Create a new Mnemonic in the specified language from the given entropy. Entropy must be a
-     * multiple of 32 bits (4 bytes) and 128-256 bits in length.
-     */
-    fun fromEntropy(): Mnemonic
-}

api-docs/kotlin/src/test/kotlin/org/bitcoindevkit/Samples.kt

@@ -1,245 +0,0 @@
-package org.bitcoindevkit
-
-fun networkSample() {
-    val wallet = Wallet(
-        descriptor = descriptor,
-        changeDescriptor = changeDescriptor,
-        network = Network.TESTNET,
-        databaseConfig = DatabaseConfig.Memory
-    )
-}
-
-fun balanceSample() {
-    object LogProgress : Progress {
-        override fun update(progress: Float, message: String?) {}
-    }
-
-    val memoryDatabaseConfig = DatabaseConfig.Memory
-    private val blockchainConfig = BlockchainConfig.Electrum(
-        ElectrumConfig(
-            "ssl://electrum.blockstream.info:60002",
-            null,
-            5u,
-            null,
-            200u
-        )
-    )
-    val wallet = Wallet(descriptor, null, Network.TESTNET, memoryDatabaseConfig)
-    val blockchain = Blockchain(blockchainConfig)
-    wallet.sync(blockchain, LogProgress)
-
-    val balance: Balance = wallet.getBalance()
-    println("Total wallet balance is ${balance.total}")
-}
-
-fun electrumBlockchainConfigSample() {
-    val blockchainConfig = BlockchainConfig.Electrum(
-        ElectrumConfig(
-            url = "ssl://electrum.blockstream.info:60002",
-            socks5 = null,
-            retry = 5u,
-            timeout = null,
-            stopGap = 200u
-        )
-    )
-}
-
-fun esploraBlockchainConfigSample() {
-    val esploraURL: String = "http://10.0.2.2:3002"
-    val esploraConfig: EsploraConfig = EsploraConfig(
-        baseUrl = esploraURL,
-        proxy = null,
-        concurrency = 4u,
-        stopGap = 20UL,
-        timeout = null
-    )
-    val blockchainConfig = BlockchainConfig.Esplora(config = esploraConfig)
-}
-
-fun memoryDatabaseConfigSample() {
-    val memoryDatabaseConfig = DatabaseConfig.Memory
-}
-
-fun sqliteDatabaseConfigSample() {
-    val databaseConfig = DatabaseConfig.Sqlite(SqliteDbConfiguration("bdk-sqlite"))
-}
-
-fun addressIndexSample() {
-    val wallet: Wallet = Wallet(
-        descriptor = descriptor,
-        changeDescriptor = changeDescriptor,
-        network = Network.TESTNET,
-        databaseConfig = DatabaseConfig.Memory
-    )
-
-    fun getLastUnusedAddress(): AddressInfo {
-        return wallet.getAddress(AddressIndex.LAST_UNUSED)
-    }
-}
-
-fun addressInfoSample() {
-    val wallet: Wallet = Wallet(
-        descriptor = descriptor,
-        changeDescriptor = changeDescriptor,
-        network = Network.TESTNET,
-        databaseConfig = DatabaseConfig.Memory
-    )
-
-    fun getLastUnusedAddress(): AddressInfo {
-        return wallet.getAddress(AddressIndex.NEW)
-    }
-
-    val newAddress: AddressInfo = getLastUnusedAddress()
-
-    println("New address at index ${newAddress.index} is ${newAddress.address}")
-}
-
-fun blockchainSample() {
-    val blockchainConfig: BlockchainConfig = BlockchainConfig.Electrum(
-        ElectrumConfig(
-            electrumURL,
-            null,
-            5u,
-            null,
-            10u
-        )
-    )
-
-    val blockchain: Blockchain = Blockchain(blockchainConfig)
-
-    blockchain.broadcast(signedPsbt)
-}
-
-
-fun txBuilderResultSample1() {
-    val faucetAddress = Address("tb1ql7w62elx9ucw4pj5lgw4l028hmuw80sndtntxt")
-    // TxBuilderResult is a data class, which means you can use destructuring declarations on it to
-    // open it up into its component parts
-    val (psbt, txDetails) = TxBuilder()
-        .addRecipient(faucetAddress.scriptPubkey(), 1000uL)
-        .feeRate(1.2f)
-        .finish(wallet)
-
-    println("Txid is ${txDetails.txid}")
-    wallet.sign(psbt)
-}
-
-fun txBuilderResultSample2() {
-    val faucetAddress = Address("tb1ql7w62elx9ucw4pj5lgw4l028hmuw80sndtntxt")
-    val txBuilderResult: TxBuilderResult = TxBuilder()
-        .addRecipient(faucetAddress.scriptPubkey(), 1000uL)
-        .feeRate(1.2f)
-        .finish(wallet)
-
-    val psbt = txBuilderResult.psbt
-    val txDetails = txBuilderResult.transactionDetails
-
-    println("Txid is ${txDetails.txid}")
-    wallet.sign(psbt)
-}
-
-fun descriptorSecretKeyExtendSample() {
-    // The `DescriptorSecretKey.extend()` method allows you to extend a key to any given path.
-
-    // val mnemonic: String = generateMnemonic(WordCount.WORDS12)
-    val mnemonic: Mnemonic = Mnemonic("scene change clap smart together mind wheel knee clip normal trial unusual")
-
-    // the initial DescriptorSecretKey will always be at the "master" node,
-    // i.e. the derivation path is empty
-    val bip32RootKey: DescriptorSecretKey = DescriptorSecretKey(
-        network = Network.TESTNET,
-        mnemonic = mnemonic,
-        password = ""
-    )
-    println(bip32RootKey.asString())
-    // tprv8ZgxMBicQKsPfM8Trx2apvdEkmxbJkYY3ZsmcgKb2bfnLNcBhtCstqQTeFesMRLEJXpjGDinAUJUHprXMwph8dQBdS1HAoxEis8Knimxovf/*
-
-    // the derive method will also automatically apply the wildcard (*) to your path,
-    // i.e the following will generate the typical testnet BIP84 external wallet path
-    // m/84h/1h/0h/0/*
-    val bip84ExternalPath: DerivationPath = DerivationPath("m/84h/1h/0h/0")
-    val externalExtendedKey: DescriptorSecretKey = bip32RootKey.extend(bip84ExternalPath).asString()
-    println(externalExtendedKey)
-    // tprv8ZgxMBicQKsPfM8Trx2apvdEkmxbJkYY3ZsmcgKb2bfnLNcBhtCstqQTeFesMRLEJXpjGDinAUJUHprXMwph8dQBdS1HAoxEis8Knimxovf/84'/1'/0'/0/*
-
-    // to create the descriptor you'll need to use this extended key in a descriptor function,
-    // i.e. wpkh(), tr(), etc.
-    val externalDescriptor = "wpkh($externalExtendedKey)"
-}
-
-fun descriptorSecretKeyDeriveSample() {
-    // The DescriptorSecretKey.derive() method allows you to derive an extended key for a given
-    // node in the derivation tree (for example to create an xpub for a particular account)
-
-    val mnemonic: Mnemonic = Mnemonic("scene change clap smart together mind wheel knee clip normal trial unusual")
-    val bip32RootKey: DescriptorSecretKey = DescriptorSecretKey(
-        network = Network.TESTNET,
-        mnemonic = mnemonic,
-        password = ""
-    )
-
-    val bip84Account0: DerivationPath = DerivationPath("m/84h/1h/0h")
-    val xpubAccount0: DescriptorSecretKey = bip32RootKey.derive(bip84Account0)
-    println(xpubAccount0.asString())
-    // [5512949b/84'/1'/0']tprv8ghw3FWfWTeLCEXcr8f8Q8Lz4QPCELYv3jhBXjAm7XagA6R5hreeWLTJeLBfMj7Ni6Q3PdV1o8NbvNBHE59W97EkRJSU4JkvTQjaNUmQubE/*
-
-    val internalPath: DerivationPath = DerivationPath("m/0")
-    val externalExtendedKey = xpubAccount0.extend(internalPath).asString()
-    println(externalExtendedKey)
-    // [5512949b/84'/1'/0']tprv8ghw3FWfWTeLCEXcr8f8Q8Lz4QPCELYv3jhBXjAm7XagA6R5hreeWLTJeLBfMj7Ni6Q3PdV1o8NbvNBHE59W97EkRJSU4JkvTQjaNUmQubE/0/*
-
-    // to create the descriptor you'll need to use this extended key in a descriptor function,
-    // i.e. wpkh(), tr(), etc.
-    val externalDescriptor = "wpkh($externalExtendedKey)"
-}
-
-fun createTransaction() {
-    val wallet = BdkWallet(
-        descriptor = externalDescriptor,
-        changeDescriptor = internalDescriptor,
-        network = Network.TESTNET,
-        databaseConfig = memoryDatabaseConfig,
-    )
-    val blockchainConfig = BlockchainConfig.Electrum(
-        ElectrumConfig(
-            "ssl://electrum.blockstream.info:60002",
-            null,
-            5u,
-            null,
-            200u
-        )
-    )
-
-    val paymentAddress: Address = Address("tb1ql7w62elx9ucw4pj5lgw4l028hmuw80sndtntxt")
-    val (psbt, txDetails) = TxBuilder()
-        .addRecipient(faucetAddress.scriptPubkey(), 1000uL)
-        .feeRate(1.2f)
-        .finish(wallet)
-
-    wallet.sign(psbt)
-    blockchain.broadcast(psbt)
-}
-
-fun walletSample() {
-    val externalDescriptor = "wpkh(tprv8hwWMmPE4BVNxGdVt3HhEERZhondQvodUY7Ajyseyhudr4WabJqWKWLr4Wi2r26CDaNCQhhxEfVULesmhEfZYyBXdE/84h/1h/0h/0/*)"
-    val internalDescriptor = "wpkh(tprv8hwWMmPE4BVNxGdVt3HhEERZhondQvodUY7Ajyseyhudr4WabJqWKWLr4Wi2r26CDaNCQhhxEfVULesmhEfZYyBXdE/84h/1h/0h/1/*)"
-    val sqliteDatabaseConfig = DatabaseConfig.Sqlite(SqliteDbConfiguration("bdk-sqlite"))
-
-    val wallet = Wallet(
-        descriptor = externalDescriptor,
-        changeDescriptor = internalDescriptor,
-        network = Network.TESTNET,
-        databaseConfig = sqliteDatabaseConfig,
-    )
-}
-
-fun mnemonicSample() {
-    val mnemonic0: Mnemonic = Mnemonic(WordCount.WORDS12)
-
-    val mnemonic1: Mnemonic = Mnemonic.fromString("scene change clap smart together mind wheel knee clip normal trial unusual")
-
-    val entropy: List<UByte> = listOf<UByte>(0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u)
-    val mnemonic2: Mnemonic = Mnemonic.fromEntropy(entropy)
-
-    println(mnemonic0.asString(), mnemonic1.asString(), mnemonic2.asString())
-}

bdk-android/README.md

@@ -8,29 +8,11 @@ repositories {
     mavenCentral()
 }
 
-dependencies {
-  implementation("org.bitcoindevkit:bdk-android:<version>")
+dependencies { 
+    implementation("org.bitcoindevkit:bdk-android:<version>")
 }
 ```
 
-You may then import and use the `org.bitcoindevkit` library in your Kotlin code. For example:
-```kotlin
-import org.bitcoindevkit.*
-
-// ...
-
-val externalDescriptor = "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/0/*)"
-val internalDescriptor = "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/1/*)"
-
-val databaseConfig = DatabaseConfig.Memory
-
-val blockchainConfig = BlockchainConfig.Electrum(
-        ElectrumConfig("ssl://electrum.blockstream.info:60002", null, 5u, null, 10u)
-    )
-val wallet = Wallet(externalDescriptor, internalDescriptor, Network.TESTNET, databaseConfig, blockchainConfig)
-val newAddress = wallet.getAddress(AddressIndex.LAST_UNUSED)
-```
-
 ### Snapshot releases
 To use a snapshot release, specify the snapshot repository url in the `repositories` block and use the snapshot version in the `dependencies` block:
 ```kotlin
@@ -38,42 +20,52 @@ repositories {
     maven("https://s01.oss.sonatype.org/content/repositories/snapshots/")
 }
 
-dependencies {
-  implementation("org.bitcoindevkit:bdk-android:<version-SNAPSHOT>")
+dependencies { 
+    implementation("org.bitcoindevkit:bdk-android:<version-SNAPSHOT>")
 }
 ```
 
 ### Example Projects
+* [bdk-kotlin-example-wallet](https://github.com/bitcoindevkit/bdk-kotlin-example-wallet)
 * [Devkit Wallet](https://github.com/thunderbiscuit/devkit-wallet)
 * [Padawan Wallet](https://github.com/thunderbiscuit/padawan-wallet)
 
 ### How to build
-_Note that Kotlin version `1.6.10` or later is required to build the library._
+_Note that Kotlin version `1.9.23` or later is required to build the library._
 
 1. Clone this repository.
 ```shell
 git clone https://github.com/bitcoindevkit/bdk-ffi
 ```
-2. Follow the "General" bdk-ffi ["Getting Started (Developer)"] instructions.
-3. If building on macOS install required intel and m1 jvm targets
+2. Follow the "General" bdk-ffi ["Getting Started (Developer)"] instructions. 
+3. Install Rust (note that we are currently building using Rust 1.77.1):
+```shell
+curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
+rustup default 1.77.1
+```
 4. Install required targets
- ```sh
- rustup target add x86_64-linux-android aarch64-linux-android armv7-linux-androideabi
- ```
+```sh
+rustup target add x86_64-linux-android aarch64-linux-android armv7-linux-androideabi
+```
 5. Install Android SDK and Build-Tools for API level 30+
-6. Setup `$ANDROID_SDK_ROOT` and `$ANDROID_NDK_ROOT` path variables (which are required by the
-   build tool), for example (NDK major version 21 is required):
- ```shell
- export ANDROID_SDK_ROOT=~/Android/Sdk
- export ANDROID_NDK_ROOT=$ANDROID_SDK_ROOT/ndk/21.<NDK_VERSION>
- ```
+6. Setup `ANDROID_SDK_ROOT` and `ANDROID_NDK_ROOT` path variables which are required by the build tool. Note that currently, NDK version 25.2.9519653 or above is required. For example:
+```shell
+# macOS
+export ANDROID_SDK_ROOT=~/Library/Android/sdk
+export ANDROID_NDK_ROOT=$ANDROID_SDK_ROOT/ndk/25.2.9519653
+
+# linux
+export ANDROID_SDK_ROOT=/usr/local/lib/android/sdk
+export ANDROID_NDK_ROOT=$ANDROID_SDK_ROOT/ndk/25.2.9519653
+```
+
 7. Build kotlin bindings
  ```sh
  # build Android library
  cd bdk-android
  ./gradlew buildAndroidLib
  ```
-8. Start android emulator (must be x86_64) and run tests
+1. Start android emulator and run tests
 ```sh
 ./gradlew connectedAndroidTest
 ```
@@ -81,7 +73,7 @@ git clone https://github.com/bitcoindevkit/bdk-ffi
 ## How to publish to your local Maven repo
 ```shell
 cd bdk-android
-./gradlew publishToMavenLocal --exclude-task signMavenPublication
+./gradlew publishToMavenLocal -P localBuild
 ```
 
 Note that the commands assume you don't need the local libraries to be signed. If you do wish to sign them, simply set your `~/.gradle/gradle.properties` signing key values like so:
@@ -90,10 +82,27 @@ signing.gnupg.keyName=<YOUR_GNUPG_ID>
 signing.gnupg.passphrase=<YOUR_GNUPG_PASSPHRASE>
 ```
 
-and use the `publishToMavenLocal` task without excluding the signing task:
+and use the `publishToMavenLocal` task without the `localBuild` flag:
 ```shell
 ./gradlew publishToMavenLocal
 ```
 
+## Known issues
+### JNA dependency
+Depending on the JVM version you use, you might not have the JNA dependency on your classpath. The exception thrown will be
+```shell
+class file for com.sun.jna.Pointer not found
+```
+The solution is to add JNA as a dependency like so:
+```kotlin
+dependencies {
+    // ...
+    implementation("net.java.dev.jna:jna:5.12.1")
+}
+```
+
+### x86 emulators
+For some older versions of macOS, Android Studio will recommend users install the x86 version of the emulator by default. This will not work with the bdk-android library, as we do not support 32-bit architectures. Make sure you install an x86_64 emulator to work with bdk-android.
+
 [`bdk`]: https://github.com/bitcoindevkit/bdk
 [`bdk-ffi`]: https://github.com/bitcoindevkit/bdk-ffi

bdk-android/build.gradle.kts

@@ -1,14 +1,10 @@
-buildscript {
-    repositories {
-        google()
-    }
-    dependencies {
-        classpath("com.android.tools.build:gradle:7.1.2")
-    }
-}
-
 plugins {
-    id("io.github.gradle-nexus.publish-plugin") version "1.1.0"
+    id("com.android.library").version("8.3.1").apply(false)
+    id("org.jetbrains.kotlin.android").version("1.9.23").apply(false)
+    id("org.gradle.maven-publish")
+    id("org.gradle.signing")
+    id("org.bitcoindevkit.plugins.generate-android-bindings").apply(false)
+    id("io.github.gradle-nexus.publish-plugin").version("1.1.0").apply(true)
 }
 
 // library version is defined in gradle.properties

bdk-android/gradle.properties

@@ -2,4 +2,4 @@ org.gradle.jvmargs=-Xmx1536m
 android.useAndroidX=true
 android.enableJetifier=true
 kotlin.code.style=official
-libraryVersion=0.12.0-SNAPSHOT
+libraryVersion=1.0.0-alpha.10-SNAPSHOT

bdk-android/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-all.zip
+networkTimeout=10000
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

bdk-android/gradlew

@@ -55,7 +55,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -80,13 +80,11 @@ do
     esac
 done
 
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
+# This is normally unused
+# shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -133,22 +131,29 @@ location of your Java installation."
     fi
 else
     JAVACMD=java
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
+    fi
 fi
 
 # Increase the maximum file descriptors if we can.
 if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
     case $MAX_FD in  #(
       '' | soft) :;; #(
       *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -193,11 +198,15 @@ if "$cygwin" || "$msys" ; then
     done
 fi
 
-# Collect all arguments for the java command;
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
-#     shell script including quotes and variable substitutions, so put them in
-#     double quotes to make sure that they get re-expanded; and
-#   * put everything else in single quotes, so that it's not re-expanded.
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
 
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \
@@ -205,6 +214,12 @@ set -- \
         org.gradle.wrapper.GradleWrapperMain \
         "$@"
 
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
 # Use "xargs" to parse quoted args.
 #
 # With -n1 it outputs one arg per line, with the quotes and backslashes removed.

bdk-android/gradlew.bat

@@ -14,7 +14,7 @@
 @rem limitations under the License.
 @rem
 
-@if "%DEBUG%" == "" @echo off
+@if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
 @rem  Gradle startup script for Windows
@@ -25,7 +25,8 @@
 if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
@@ -40,7 +41,7 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
+if %ERRORLEVEL% equ 0 goto execute
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -75,13 +76,15 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 :end
 @rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+if %ERRORLEVEL% equ 0 goto mainEnd
 
 :fail
 rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
 rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
 
 :mainEnd
 if "%OS%"=="Windows_NT" endlocal

bdk-android/justfile

@@ -0,0 +1,20 @@
+default:
+  just --list
+
+build:
+  ./gradlew buildAndroidLib
+
+clean:
+  rm -rf ../bdk-ffi/target/
+  rm -rf ./build/
+  rm -rf ./lib/build/
+  rm -rf ./plugins/build/
+
+publish-local:
+  ./gradlew publishToMavenLocal -P localBuild
+
+test:
+  ./gradlew connectedAndroidTest
+
+test-specific TEST:
+  ./gradlew test --tests {{TEST}}

bdk-android/lib/build.gradle.kts

@@ -1,27 +1,25 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
 // library version is defined in gradle.properties
 val libraryVersion: String by project
 
 plugins {
     id("com.android.library")
-    id("org.jetbrains.kotlin.android") version "1.6.10"
-    id("maven-publish")
-    id("signing")
+    id("org.jetbrains.kotlin.android")
+    id("org.gradle.maven-publish")
+    id("org.gradle.signing")
 
     // Custom plugin to generate the native libs and bindings file
     id("org.bitcoindevkit.plugins.generate-android-bindings")
 }
 
-repositories {
-    mavenCentral()
-    google()
-}
-
 android {
-    compileSdk = 31
+    namespace = "org.bitcoindevkit"
+    compileSdk = 34
 
     defaultConfig {
         minSdk = 21
-        targetSdk = 31
+        targetSdk = 34
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         consumerProguardFiles("consumer-rules.pro")
     }
@@ -41,8 +39,22 @@ android {
     }
 }
 
+kotlin {
+    tasks.withType<KotlinCompile>().configureEach {
+        kotlinOptions {
+            jvmTarget = "17"
+        }
+    }
+}
+
+java {
+    toolchain {
+        languageVersion.set(JavaLanguageVersion.of(17))
+    }
+}
+
 dependencies {
-    implementation("net.java.dev.jna:jna:5.8.0@aar")
+    implementation("net.java.dev.jna:jna:5.14.0@aar")
     implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk7")
     implementation("androidx.appcompat:appcompat:1.4.0")
     implementation("androidx.core:core-ktx:1.7.0")
@@ -51,7 +63,8 @@ dependencies {
     androidTestImplementation("com.github.tony19:logback-android:2.0.0")
     androidTestImplementation("androidx.test.ext:junit:1.1.3")
     androidTestImplementation("androidx.test.espresso:espresso-core:3.4.0")
-    androidTestImplementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.4.1")
+    androidTestImplementation("org.jetbrains.kotlin:kotlin-test:1.6.10")
+    androidTestImplementation("org.jetbrains.kotlin:kotlin-test-junit:1.6.10")
 }
 
 afterEvaluate {
@@ -79,14 +92,9 @@ afterEvaluate {
                     }
                     developers {
                         developer {
-                            id.set("notmandatory")
-                            name.set("Steve Myers")
-                            email.set("notmandatory@noreply.github.org")
-                        }
-                        developer {
-                            id.set("artfuldev")
-                            name.set("Sudarsan Balaji")
-                            email.set("sudarsan.balaji@artfuldev.com")
+                            id.set("bdkdevelopers")
+                            name.set("Bitcoin Dev Kit Developers")
+                            email.set("dev@bitcoindevkit.org")
                         }
                     }
                     scm {
@@ -98,12 +106,30 @@ afterEvaluate {
             }
         }
     }
+    
+    // This is required because we must ensure the moveNativeAndroidLibs task is executed after
+    // the mergeReleaseJniLibFolders (hard requirement introduced by our upgrade to Gradle 8.7)
+    tasks.named("mergeReleaseJniLibFolders") {
+        dependsOn(":lib:moveNativeAndroidLibs")
+    }
+    tasks.named("mergeDebugJniLibFolders") {
+        dependsOn(":lib:moveNativeAndroidLibs")
+    }
 }
 
 signing {
+    if (project.hasProperty("localBuild")) {
+        isRequired = false
+    }
+
     val signingKeyId: String? by project
     val signingKey: String? by project
     val signingPassword: String? by project
     useInMemoryPgpKeys(signingKeyId, signingKey, signingPassword)
     sign(publishing.publications)
 }
+
+// This task dependency ensures that we build the bindings binaries before running the tests
+tasks.withType<KotlinCompile> {
+    dependsOn("buildAndroidLib")
+}

bdk-android/lib/src/androidTest/kotlin/org/bitcoindevkit/AndroidLibTest.kt

@@ -1,81 +0,0 @@
-package org.bitcoindevkit
-
-import org.junit.Assert.*
-import org.junit.Test
-import android.app.Application
-import android.content.Context.MODE_PRIVATE
-import androidx.test.core.app.ApplicationProvider
-import androidx.test.ext.junit.runners.AndroidJUnit4
-import org.junit.runner.RunWith
-import org.slf4j.Logger
-import org.slf4j.LoggerFactory
-import java.io.File
-
-/**
- * Instrumented test, which will execute on an Android device.
- *
- * See [testing documentation](http://d.android.com/tools/testing).
- */
-@RunWith(AndroidJUnit4::class)
-class AndroidLibTest {
-
-    private fun getTestDataDir(): String {
-        val context = ApplicationProvider.getApplicationContext<Application>()
-        return context.getDir("bdk-test", MODE_PRIVATE).toString()
-    }
-
-    private fun cleanupTestDataDir(testDataDir: String) {
-        File(testDataDir).deleteRecursively()
-    }
-
-    class LogProgress : Progress {
-        private val log: Logger = LoggerFactory.getLogger(AndroidLibTest::class.java)
-
-        override fun update(progress: Float, message: String?) {
-            log.debug("Syncing...")
-        }
-    }
-
-    private val descriptor =
-        "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/0/*)"
-
-    private val databaseConfig = DatabaseConfig.Memory
-
-    private val blockchainConfig = BlockchainConfig.Electrum(
-        ElectrumConfig(
-            "ssl://electrum.blockstream.info:60002",
-            null,
-            5u,
-            null,
-            100u
-        )
-    )
-
-    @Test
-    fun memoryWalletNewAddress() {
-        val wallet = Wallet(descriptor, null, Network.TESTNET, databaseConfig)
-        val address = wallet.getAddress(AddressIndex.NEW).address
-        assertEquals("tb1qzg4mckdh50nwdm9hkzq06528rsu73hjxxzem3e", address)
-    }
-
-    @Test
-    fun memoryWalletSyncGetBalance() {
-        val wallet = Wallet(descriptor, null, Network.TESTNET, databaseConfig)
-        val blockchain = Blockchain(blockchainConfig)
-        wallet.sync(blockchain, LogProgress())
-        val balance: Balance = wallet.getBalance()
-        assertTrue(balance.total > 0u)
-    }
-
-    @Test
-    fun sqliteWalletSyncGetBalance() {
-        val testDataDir = getTestDataDir() + "/bdk-wallet.sqlite"
-        val databaseConfig = DatabaseConfig.Sqlite(SqliteDbConfiguration(testDataDir))
-        val wallet = Wallet(descriptor, null, Network.TESTNET, databaseConfig)
-        val blockchain = Blockchain(blockchainConfig)
-        wallet.sync(blockchain, LogProgress())
-        val balance: Balance = wallet.getBalance()
-        assertTrue(balance.total > 0u)
-        cleanupTestDataDir(testDataDir)
-    }
-}

bdk-android/lib/src/androidTest/kotlin/org/bitcoindevkit/LiveTxBuilderTest.kt

@@ -0,0 +1,81 @@
+package org.bitcoindevkit
+
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.platform.app.InstrumentationRegistry
+import org.junit.Test
+import org.junit.runner.RunWith
+import java.io.File
+import kotlin.test.AfterTest
+import kotlin.test.assertTrue
+
+private const val SIGNET_ESPLORA_URL = "http://signet.bitcoindevkit.net"
+private const val TESTNET_ESPLORA_URL = "https://esplora.testnet.kuutamo.cloud"
+
+@RunWith(AndroidJUnit4::class)
+class LiveTxBuilderTest {
+    private val persistenceFilePath = InstrumentationRegistry
+        .getInstrumentation().targetContext.filesDir.path + "/bdk_persistence.db"
+
+    @AfterTest
+    fun cleanup() {
+        val file = File(persistenceFilePath)
+        if (file.exists()) {
+            file.delete()
+        }
+    }
+
+    @Test
+    fun testTxBuilder() {
+        val descriptor = Descriptor("wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", Network.SIGNET)
+        val wallet = Wallet(descriptor, null, persistenceFilePath, Network.SIGNET)
+        val esploraClient = EsploraClient(SIGNET_ESPLORA_URL)
+        val fullScanRequest: FullScanRequest = wallet.startFullScan()
+        val update = esploraClient.fullScan(fullScanRequest, 10uL, 1uL)
+        wallet.applyUpdate(update)
+        wallet.commit()
+        println("Balance: ${wallet.getBalance().total}")
+
+        assert(wallet.getBalance().total > 0uL)
+
+        val recipient: Address = Address("tb1qrnfslnrve9uncz9pzpvf83k3ukz22ljgees989", Network.SIGNET)
+        val psbt: Psbt = TxBuilder()
+            .addRecipient(recipient.scriptPubkey(), 4200uL)
+            .feeRate(FeeRate.fromSatPerVb(2uL))
+            .finish(wallet)
+
+        println(psbt.serialize())
+        assertTrue(psbt.serialize().startsWith("cHNi"), "PSBT should start with 'cHNi'")
+    }
+
+    @Test
+    fun complexTxBuilder() {
+        val externalDescriptor = Descriptor("wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", Network.SIGNET)
+        val changeDescriptor = Descriptor("wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)", Network.SIGNET)
+        val wallet = Wallet(externalDescriptor, changeDescriptor, persistenceFilePath, Network.TESTNET)
+        val esploraClient = EsploraClient(SIGNET_ESPLORA_URL)
+        val fullScanRequest: FullScanRequest = wallet.startFullScan()
+        val update = esploraClient.fullScan(fullScanRequest, 10uL, 1uL)
+        wallet.applyUpdate(update)
+        wallet.commit()
+        println("Balance: ${wallet.getBalance().total}")
+
+        assert(wallet.getBalance().total > 0uL)
+
+        val recipient1: Address = Address("tb1qrnfslnrve9uncz9pzpvf83k3ukz22ljgees989", Network.SIGNET)
+        val recipient2: Address = Address("tb1qw2c3lxufxqe2x9s4rdzh65tpf4d7fssjgh8nv6", Network.SIGNET)
+        val allRecipients: List<ScriptAmount> = listOf(
+            ScriptAmount(recipient1.scriptPubkey(), 4200uL),
+            ScriptAmount(recipient2.scriptPubkey(), 4200uL),
+        )
+
+        val psbt: Psbt = TxBuilder()
+            .setRecipients(allRecipients)
+            .feeRate(FeeRate.fromSatPerVb(4uL))
+            .changePolicy(ChangeSpendPolicy.CHANGE_FORBIDDEN)
+            .enableRbf()
+            .finish(wallet)
+
+        wallet.sign(psbt)
+        assertTrue(psbt.serialize().startsWith("cHNi"), "PSBT should start with 'cHNi'")
+    }
+}

bdk-android/lib/src/androidTest/kotlin/org/bitcoindevkit/LiveWalletTest.kt

@@ -0,0 +1,92 @@
+package org.bitcoindevkit
+
+import org.junit.Test
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.platform.app.InstrumentationRegistry
+import org.junit.runner.RunWith
+import java.io.File
+import kotlin.test.AfterTest
+import kotlin.test.assertTrue
+
+private const val SIGNET_ESPLORA_URL = "http://signet.bitcoindevkit.net"
+private const val TESTNET_ESPLORA_URL = "https://esplora.testnet.kuutamo.cloud"
+
+@RunWith(AndroidJUnit4::class)
+class LiveWalletTest {
+    private val persistenceFilePath = InstrumentationRegistry
+        .getInstrumentation().targetContext.filesDir.path + "/bdk_persistence.db"
+
+    @AfterTest
+    fun cleanup() {
+        val file = File(persistenceFilePath)
+        if (file.exists()) {
+            file.delete()
+        }
+    }
+
+    @Test
+    fun testSyncedBalance() {
+        val descriptor: Descriptor = Descriptor("wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", Network.SIGNET)
+        val wallet: Wallet = Wallet(descriptor, null, persistenceFilePath, Network.SIGNET)
+        val esploraClient: EsploraClient = EsploraClient(SIGNET_ESPLORA_URL)
+        val fullScanRequest: FullScanRequest = wallet.startFullScan()
+        val update = esploraClient.fullScan(fullScanRequest, 10uL, 1uL)
+        wallet.applyUpdate(update)
+        wallet.commit()
+        println("Balance: ${wallet.getBalance().total}")
+        val balance: Balance = wallet.getBalance()
+        println("Balance: $balance")
+
+        assert(wallet.getBalance().total > 0uL)
+
+        println("Transactions count: ${wallet.transactions().count()}")
+        val transactions = wallet.transactions().take(3)
+        for (tx in transactions) {
+            val sentAndReceived = wallet.sentAndReceived(tx.transaction)
+            println("Transaction: ${tx.transaction.txid()}")
+            println("Sent ${sentAndReceived.sent}")
+            println("Received ${sentAndReceived.received}")
+        }
+    }
+
+    @Test
+    fun testBroadcastTransaction() {
+        val descriptor = Descriptor("wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", Network.SIGNET)
+        val wallet = Wallet(descriptor, null, persistenceFilePath, Network.SIGNET)
+        val esploraClient = EsploraClient(SIGNET_ESPLORA_URL)
+        val fullScanRequest: FullScanRequest = wallet.startFullScan()
+        val update = esploraClient.fullScan(fullScanRequest, 10uL, 1uL)
+        wallet.applyUpdate(update)
+        wallet.commit()
+        println("Balance: ${wallet.getBalance().total}")
+        println("New address: ${wallet.revealNextAddress(KeychainKind.EXTERNAL).address}")
+
+        assert(wallet.getBalance().total > 0uL) {
+            "Wallet balance must be greater than 0! Please send funds to ${wallet.revealNextAddress(KeychainKind.EXTERNAL).address} and try again."
+        }
+
+        val recipient: Address = Address("tb1qrnfslnrve9uncz9pzpvf83k3ukz22ljgees989", Network.SIGNET)
+
+        val psbt: Psbt = TxBuilder()
+            .addRecipient(recipient.scriptPubkey(), 4200uL)
+            .feeRate(FeeRate.fromSatPerVb(4uL))
+            .finish(wallet)
+
+        println(psbt.serialize())
+        assertTrue(psbt.serialize().startsWith("cHNi"), "PSBT should start with 'cHNi'")
+
+        val walletDidSign = wallet.sign(psbt)
+        assertTrue(walletDidSign)
+
+        val tx: Transaction = psbt.extractTx()
+        println("Txid is: ${tx.txid()}")
+
+        val txFee: ULong = wallet.calculateFee(tx)
+        println("Tx fee is: ${txFee}")
+
+        val feeRate: FeeRate = wallet.calculateFeeRate(tx)
+        println("Tx fee rate is: ${feeRate.toSatPerVbCeil()} sat/vB")
+
+        esploraClient.broadcast(tx)
+    }
+}

bdk-android/lib/src/androidTest/kotlin/org/bitcoindevkit/OfflineDescriptorTest.kt

@@ -0,0 +1,21 @@
+package org.bitcoindevkit
+
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class OfflineDescriptorTest {
+    @Test
+    fun testDescriptorBip86() {
+        val mnemonic: Mnemonic = Mnemonic.fromString("space echo position wrist orient erupt relief museum myself grain wisdom tumble")
+        val descriptorSecretKey: DescriptorSecretKey = DescriptorSecretKey(Network.TESTNET, mnemonic, null)
+        val descriptor: Descriptor = Descriptor.newBip86(descriptorSecretKey, KeychainKind.EXTERNAL, Network.TESTNET)
+
+        assertEquals(
+            expected = "tr([be1eec8f/86'/1'/0']tpubDCTtszwSxPx3tATqDrsSyqScPNnUChwQAVAkanuDUCJQESGBbkt68nXXKRDifYSDbeMa2Xg2euKbXaU3YphvGWftDE7ozRKPriT6vAo3xsc/0/*)#m7puekcx",
+            actual = descriptor.asString()
+        )
+    }
+}

bdk-android/lib/src/androidTest/kotlin/org/bitcoindevkit/OfflineWalletTest.kt

@@ -0,0 +1,78 @@
+package org.bitcoindevkit
+
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertTrue
+import kotlin.test.assertFalse
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.platform.app.InstrumentationRegistry
+import org.junit.runner.RunWith
+import java.io.File
+import kotlin.test.AfterTest
+
+@RunWith(AndroidJUnit4::class)
+class OfflineWalletTest {
+    private val persistenceFilePath = InstrumentationRegistry
+        .getInstrumentation().targetContext.filesDir.path + "/bdk_persistence.db"
+
+    @AfterTest
+    fun cleanup() {
+        val file = File(persistenceFilePath)
+        if (file.exists()) {
+            file.delete()
+        }
+    }
+
+    @Test
+    fun testDescriptorBip86() {
+        val mnemonic: Mnemonic = Mnemonic(WordCount.WORDS12)
+        val descriptorSecretKey: DescriptorSecretKey = DescriptorSecretKey(Network.TESTNET, mnemonic, null)
+        val descriptor: Descriptor = Descriptor.newBip86(descriptorSecretKey, KeychainKind.EXTERNAL, Network.TESTNET)
+
+        assertTrue(descriptor.asString().startsWith("tr"), "Bip86 Descriptor does not start with 'tr'")
+    }
+
+   @Test
+    fun testNewAddress() {
+        val descriptor: Descriptor = Descriptor(
+            "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/0/*)",
+            Network.TESTNET
+        )
+        val wallet: Wallet = Wallet(
+            descriptor,
+            null,
+            persistenceFilePath,
+            Network.TESTNET
+        )
+        val addressInfo: AddressInfo = wallet.revealNextAddress(KeychainKind.EXTERNAL)
+
+        assertTrue(addressInfo.address.isValidForNetwork(Network.TESTNET), "Address is not valid for testnet network")
+        assertTrue(addressInfo.address.isValidForNetwork(Network.SIGNET), "Address is not valid for signet network")
+        assertFalse(addressInfo.address.isValidForNetwork(Network.REGTEST), "Address is valid for regtest network, but it shouldn't be")
+        assertFalse(addressInfo.address.isValidForNetwork(Network.BITCOIN), "Address is valid for bitcoin network, but it shouldn't be")
+
+        assertEquals(
+            expected = "tb1qzg4mckdh50nwdm9hkzq06528rsu73hjxxzem3e",
+            actual = addressInfo.address.asString()
+        )
+    }
+
+    @Test
+    fun testBalance() {
+        val descriptor: Descriptor = Descriptor(
+            "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/0/*)",
+            Network.TESTNET
+        )
+        val wallet: Wallet = Wallet(
+            descriptor,
+            null,
+            persistenceFilePath,
+            Network.TESTNET
+        )
+
+        assertEquals(
+            expected = 0uL,
+            actual = wallet.getBalance().total
+        )
+    }
+}

bdk-android/lib/src/main/AndroidManifest.xml

@@ -1,6 +1,3 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-  package="org.bitcoindevkit">
-
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
   <uses-permission android:name="android.permission.INTERNET" />
-
 </manifest>

bdk-android/plugins/src/main/kotlin/org/bitcoindevkit/plugins/Enums.kt

@@ -1,6 +1,5 @@
 package org.bitcoindevkit.plugins
 
-
 val operatingSystem: OS = when {
     System.getProperty("os.name").contains("mac", ignoreCase = true) -> OS.MAC
     System.getProperty("os.name").contains("linux", ignoreCase = true) -> OS.LINUX

bdk-android/plugins/src/main/kotlin/org/bitcoindevkit/plugins/UniFfiAndroidPlugin.kt

@@ -17,29 +17,25 @@ internal class UniFfiAndroidPlugin : Plugin<Project> {
             OS.OTHER -> throw Error("Cannot build Android library from current architecture")
         }
 
+        // if ANDROID_NDK_ROOT is not set, stop build
+        if (System.getenv("ANDROID_NDK_ROOT") == null) {
+            throw IllegalStateException("ANDROID_NDK_ROOT environment variable is not set; cannot build library")
+        }
+
         // arm64-v8a is the most popular hardware architecture for Android
         val buildAndroidAarch64Binary by tasks.register<Exec>("buildAndroidAarch64Binary") {
 
             workingDir("${projectDir}/../../bdk-ffi")
-            val cargoArgs: MutableList<String> =
-                mutableListOf("build", "--profile", "release-smaller", "--target", "aarch64-linux-android")
+            val cargoArgs: List<String> = listOf("build", "--profile", "release-smaller", "--target", "aarch64-linux-android")
 
             executable("cargo")
             args(cargoArgs)
 
-            // if ANDROID_NDK_ROOT is not set then set it to github actions default
-            if (System.getenv("ANDROID_NDK_ROOT") == null) {
-                environment(
-                    Pair("ANDROID_NDK_ROOT", "${System.getenv("ANDROID_SDK_ROOT")}/ndk-bundle")
-                )
-            }
-
             environment(
                 // add build toolchain to PATH
-                Pair("PATH",
-                    "${System.getenv("PATH")}:${System.getenv("ANDROID_NDK_ROOT")}/toolchains/llvm/prebuilt/$llvmArchPath/bin"),
-
-                Pair("CFLAGS", "-D__ANDROID_API__=21"),
+                Pair("PATH", "${System.getenv("PATH")}:${System.getenv("ANDROID_NDK_ROOT")}/toolchains/llvm/prebuilt/$llvmArchPath/bin"),
+                Pair("CFLAGS", "-D__ANDROID_MIN_SDK_VERSION__=21"),
+                Pair("AR", "llvm-ar"),
                 Pair("CARGO_TARGET_AARCH64_LINUX_ANDROID_LINKER", "aarch64-linux-android21-clang"),
                 Pair("CC", "aarch64-linux-android21-clang")
             )
@@ -53,25 +49,16 @@ internal class UniFfiAndroidPlugin : Plugin<Project> {
         val buildAndroidX86_64Binary by tasks.register<Exec>("buildAndroidX86_64Binary") {
 
             workingDir("${project.projectDir}/../../bdk-ffi")
-            val cargoArgs: MutableList<String> =
-                mutableListOf("build", "--profile", "release-smaller", "--target", "x86_64-linux-android")
+            val cargoArgs: List<String> = listOf("build", "--profile", "release-smaller", "--target", "x86_64-linux-android")
 
             executable("cargo")
             args(cargoArgs)
 
-            // if ANDROID_NDK_ROOT is not set then set it to github actions default
-            if (System.getenv("ANDROID_NDK_ROOT") == null) {
-                environment(
-                    Pair("ANDROID_NDK_ROOT", "${System.getenv("ANDROID_SDK_ROOT")}/ndk-bundle")
-                )
-            }
-
             environment(
                 // add build toolchain to PATH
-                Pair("PATH",
-                    "${System.getenv("PATH")}:${System.getenv("ANDROID_NDK_ROOT")}/toolchains/llvm/prebuilt/$llvmArchPath/bin"),
-
-                Pair("CFLAGS", "-D__ANDROID_API__=21"),
+                Pair("PATH", "${System.getenv("PATH")}:${System.getenv("ANDROID_NDK_ROOT")}/toolchains/llvm/prebuilt/$llvmArchPath/bin"),
+                Pair("CFLAGS", "-D__ANDROID_MIN_SDK_VERSION__=21"),
+                Pair("AR", "llvm-ar"),
                 Pair("CARGO_TARGET_X86_64_LINUX_ANDROID_LINKER", "x86_64-linux-android21-clang"),
                 Pair("CC", "x86_64-linux-android21-clang")
             )
@@ -85,27 +72,17 @@ internal class UniFfiAndroidPlugin : Plugin<Project> {
         val buildAndroidArmv7Binary by tasks.register<Exec>("buildAndroidArmv7Binary") {
 
             workingDir("${project.projectDir}/../../bdk-ffi")
-            val cargoArgs: MutableList<String> =
-                mutableListOf("build", "--profile", "release-smaller", "--target", "armv7-linux-androideabi")
+            val cargoArgs: List<String> = listOf("build", "--profile", "release-smaller", "--target", "armv7-linux-androideabi")
 
             executable("cargo")
             args(cargoArgs)
 
-            // if ANDROID_NDK_ROOT is not set then set it to github actions default
-            if (System.getenv("ANDROID_NDK_ROOT") == null) {
-                environment(
-                    Pair("ANDROID_NDK_ROOT", "${System.getenv("ANDROID_SDK_ROOT")}/ndk-bundle")
-                )
-            }
-
             environment(
                 // add build toolchain to PATH
-                Pair("PATH",
-                    "${System.getenv("PATH")}:${System.getenv("ANDROID_NDK_ROOT")}/toolchains/llvm/prebuilt/$llvmArchPath/bin"),
-
-                Pair("CFLAGS", "-D__ANDROID_API__=21"),
-                Pair("CARGO_TARGET_ARMV7_LINUX_ANDROIDEABI_LINKER",
-                    "armv7a-linux-androideabi21-clang"),
+                Pair("PATH", "${System.getenv("PATH")}:${System.getenv("ANDROID_NDK_ROOT")}/toolchains/llvm/prebuilt/$llvmArchPath/bin"),
+                Pair("CFLAGS", "-D__ANDROID_MIN_SDK_VERSION__=21"),
+                Pair("AR", "llvm-ar"),
+                Pair("CARGO_TARGET_ARMV7_LINUX_ANDROIDEABI_LINKER", "armv7a-linux-androideabi21-clang"),
                 Pair("CC", "armv7a-linux-androideabi21-clang")
             )
 
@@ -120,19 +97,21 @@ internal class UniFfiAndroidPlugin : Plugin<Project> {
         val moveNativeAndroidLibs by tasks.register<Copy>("moveNativeAndroidLibs") {
 
             dependsOn(buildAndroidAarch64Binary)
+            dependsOn(buildAndroidArmv7Binary)
+            dependsOn(buildAndroidX86_64Binary)
 
             into("${project.projectDir}/../lib/src/main/jniLibs/")
 
             into("arm64-v8a") {
-                from("${project.projectDir}/../../target/aarch64-linux-android/release-smaller/libbdkffi.so")
+                from("${project.projectDir}/../../bdk-ffi/target/aarch64-linux-android/release-smaller/libbdkffi.so")
             }
 
             into("x86_64") {
-                from("${project.projectDir}/../../target/x86_64-linux-android/release-smaller/libbdkffi.so")
+                from("${project.projectDir}/../../bdk-ffi/target/x86_64-linux-android/release-smaller/libbdkffi.so")
             }
 
             into("armeabi-v7a") {
-                from("${project.projectDir}/../../target/armv7-linux-androideabi/release-smaller/libbdkffi.so")
+                from("${project.projectDir}/../../bdk-ffi/target/armv7-linux-androideabi/release-smaller/libbdkffi.so")
             }
 
             doLast {
@@ -144,18 +123,17 @@ internal class UniFfiAndroidPlugin : Plugin<Project> {
         val generateAndroidBindings by tasks.register<Exec>("generateAndroidBindings") {
             dependsOn(moveNativeAndroidLibs)
 
+            val libraryPath = "${project.projectDir}/../../bdk-ffi/target/aarch64-linux-android/release-smaller/libbdkffi.so"
             workingDir("${project.projectDir}/../../bdk-ffi")
+            val cargoArgs: List<String> = listOf("run", "--bin", "uniffi-bindgen", "generate", "--library", libraryPath, "--language", "kotlin", "--out-dir", "../bdk-android/lib/src/main/kotlin", "--no-format")
+
+            // The code above worked for uniffi 0.24.3 using the --library flag
+            // The code below works for uniffi 0.23.0
+            // workingDir("${project.projectDir}/../../bdk-ffi")
+            // val cargoArgs: List<String> = listOf("run", "--bin", "uniffi-bindgen", "generate", "src/bdk.udl", "--language", "kotlin", "--config", "uniffi-android.toml", "--out-dir", "../bdk-android/lib/src/main/kotlin", "--no-format")
+
             executable("cargo")
-            args(
-                "run",
-                "--package",
-                "bdk-ffi-bindgen",
-                "--",
-                "--language",
-                "kotlin",
-                "--out-dir",
-                "../bdk-android/lib/src/main/kotlin"
-            )
+            args(cargoArgs)
 
             doLast {
                 println("Android bindings file successfully created")

bdk-android/settings.gradle.kts

@@ -2,3 +2,17 @@ rootProject.name = "bdk-android"
 
 include(":lib")
 includeBuild("plugins")
+
+pluginManagement {
+    repositories {
+        gradlePluginPortal()
+        google()
+    }
+}
+
+dependencyResolutionManagement {
+    repositories {
+        mavenCentral()
+        google()
+    }
+}

bdk-ffi-bindgen/Cargo.toml

@@ -1,10 +0,0 @@
-[package]
-name = "bdk-ffi-bindgen"
-version = "0.2.0"
-edition = "2021"
-
-[dependencies]
-anyhow = "1.0.45" # remove after upgrading to next version of uniffi
-structopt = "0.3"
-uniffi_bindgen = "0.21.0"
-camino = "1.0.9"

bdk-ffi-bindgen/src/main.rs

@@ -1,138 +0,0 @@
-use camino::Utf8Path;
-use std::fmt;
-use std::path::{Path, PathBuf};
-use std::str::FromStr;
-use structopt::StructOpt;
-
-#[derive(Debug, Eq, PartialEq)]
-pub enum Language {
-    Kotlin,
-    Python,
-    Swift,
-}
-
-impl fmt::Display for Language {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        match self {
-            Language::Kotlin => write!(f, "kotlin"),
-            Language::Swift => write!(f, "swift"),
-            Language::Python => write!(f, "python"),
-        }
-    }
-}
-
-#[derive(Debug)]
-pub enum Error {
-    UnsupportedLanguage,
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "{:?}", self)
-    }
-}
-
-impl FromStr for Language {
-    type Err = Error;
-    fn from_str(s: &str) -> Result<Self, Self::Err> {
-        match s {
-            "kotlin" => Ok(Language::Kotlin),
-            "python" => Ok(Language::Python),
-            "swift" => Ok(Language::Swift),
-            _ => Err(Error::UnsupportedLanguage),
-        }
-    }
-}
-
-fn generate_bindings(opt: &Opt) -> anyhow::Result<(), anyhow::Error> {
-    let path: &Utf8Path = Utf8Path::from_path(&opt.udl_file).unwrap();
-    let out_dir: &Utf8Path = Utf8Path::from_path(&opt.out_dir).unwrap();
-    uniffi_bindgen::generate_bindings(
-        path,
-        None,
-        vec![opt.language.to_string().as_str()],
-        Some(out_dir),
-        None,
-        false,
-    )?;
-
-    Ok(())
-}
-
-fn fixup_python_lib_path(
-    out_dir: &Path,
-    lib_name: &Path,
-) -> Result<(), Box<dyn std::error::Error>> {
-    use std::fs;
-    use std::io::Write;
-
-    const LOAD_INDIRECT_DEF: &str = "def loadIndirect():";
-
-    let bindings_file = out_dir.join("bdk.py");
-    let mut data = fs::read_to_string(&bindings_file)?;
-
-    let pos = data
-        .find(LOAD_INDIRECT_DEF)
-        .unwrap_or_else(|| panic!("loadIndirect not found in `{}`", bindings_file.display()));
-    let range = pos..pos + LOAD_INDIRECT_DEF.len();
-
-    let replacement = format!(
-        r#"
-def loadIndirect():
-    import glob
-    return getattr(ctypes.cdll, glob.glob(os.path.join(os.path.dirname(os.path.abspath(__file__)), '{}.*'))[0])
-
-def _loadIndirectOld():"#,
-        &lib_name.to_str().expect("lib name")
-    );
-    data.replace_range(range, &replacement);
-
-    let mut file = fs::OpenOptions::new()
-        .write(true)
-        .truncate(true)
-        .open(&bindings_file)?;
-    file.write_all(data.as_bytes())?;
-
-    Ok(())
-}
-
-#[derive(Debug, StructOpt)]
-#[structopt(
-    name = "bdk-ffi-bindgen",
-    about = "A tool to generate bdk-ffi language bindings"
-)]
-struct Opt {
-    /// UDL file
-    #[structopt(env = "BDKFFI_BINDGEN_UDL", short, long, default_value("src/bdk.udl"), parse(try_from_str = PathBuf::from_str))]
-    udl_file: PathBuf,
-
-    /// Language to generate bindings for
-    #[structopt(env = "BDKFFI_BINDGEN_LANGUAGE", short, long, possible_values(&["kotlin","swift","python"]), parse(try_from_str = Language::from_str))]
-    language: Language,
-
-    /// Output directory to put generated language bindings
-    #[structopt(env = "BDKFFI_BINDGEN_OUTPUT_DIR", short, long, parse(try_from_str = PathBuf::from_str))]
-    out_dir: PathBuf,
-
-    /// Python fix up lib path
-    #[structopt(env = "BDKFFI_BINDGEN_PYTHON_FIXUP_PATH", short, long, parse(try_from_str = PathBuf::from_str))]
-    python_fixup_path: Option<PathBuf>,
-}
-
-fn main() -> Result<(), Box<dyn std::error::Error>> {
-    let opt = Opt::from_args();
-
-    println!("Input UDL file is {:?}", opt.udl_file);
-    println!("Chosen language is {}", opt.language);
-    println!("Output directory is {:?}", opt.out_dir);
-
-    generate_bindings(&opt)?;
-
-    if opt.language == Language::Python {
-        if let Some(path) = opt.python_fixup_path {
-            println!("Fixing up python lib path, {:?}", &path);
-            fixup_python_lib_path(&opt.out_dir, &path)?;
-        }
-    }
-    Ok(())
-}

bdk-ffi/Cargo.toml

@@ -1,19 +1,42 @@
 [package]
 name = "bdk-ffi"
-version = "0.25.0"
-authors = ["Steve Myers <steve@notmandatory.org>", "Sudarsan Balaji <sudarsan.balaji@artfuldev.com>"]
+version = "1.0.0-alpha.10"
+homepage = "https://bitcoindevkit.org"
+repository = "https://github.com/bitcoindevkit/bdk"
 edition = "2018"
 license = "MIT OR Apache-2.0"
 
 [lib]
-crate-type = ["staticlib", "cdylib"]
+crate-type = ["lib", "staticlib", "cdylib"]
 name = "bdkffi"
 
-[dependencies]
-bdk = { version = "0.25", features = ["all-keys", "use-esplora-ureq", "sqlite-bundled"] }
+[[bin]]
+name = "uniffi-bindgen"
+path = "uniffi-bindgen.rs"
 
-uniffi_macros = { version = "0.21.0", features = ["builtin-bindgen"] }
-uniffi = { version = "0.21.0", features = ["builtin-bindgen"] }
+[features]
+default = ["uniffi/cli"]
+
+[dependencies]
+bdk = { version = "1.0.0-alpha.10", features = ["all-keys", "keys-bip39"] }
+bdk_esplora = { version = "0.12.0", default-features = false, features = ["std", "blocking", "blocking-https-rustls"] }
+bdk_file_store = { version = "0.10.0" }
+
+uniffi = { version = "=0.26.1" }
+bitcoin-internals = { version = "0.2.0", features = ["alloc"] }
+thiserror = "1.0.58"
 
 [build-dependencies]
-uniffi_build = { version = "0.21.0", features = ["builtin-bindgen"] }
+uniffi = { version = "=0.26.1", features = ["build"] }
+
+[dev-dependencies]
+uniffi = { version = "=0.26.1", features = ["bindgen-tests"] }
+assert_matches = "1.5.0"
+
+[profile.release-smaller]
+inherits = "release"
+opt-level = 'z'     # Optimize for size.
+lto = true          # Enable Link Time Optimization
+codegen-units = 1   # Reduce number of codegen units to increase optimizations.
+panic = "abort"     # Abort on panic
+strip = "debuginfo" # Partially strip symbols from binary

bdk-ffi/build.rs

@@ -1,3 +1,3 @@
 fn main() {
-    uniffi_build::generate_scaffolding("src/bdk.udl").unwrap();
+    uniffi::generate_scaffolding("./src/bdk.udl").unwrap();
 }

bdk-ffi/justfile

@@ -0,0 +1,12 @@
+default:
+  just --list
+
+build:
+  cargo build
+
+check:
+   cargo fmt
+   cargo clippy
+
+test:
+  cargo test --lib

bdk-ffi/src/bdk.udl

@@ -1,62 +1,480 @@
-namespace bdk {
+namespace bdk {};
 
+// ------------------------------------------------------------------------
+// bdk crate - error module
+// ------------------------------------------------------------------------
+
+[Error]
+interface AddressError {
+  Base58();
+  Bech32();
+  WitnessVersion(string error_message);
+  WitnessProgram(string error_message);
+  UncompressedPubkey();
+  ExcessiveScriptSize();
+  UnrecognizedScript();
+  NetworkValidation(Network required, Network found, string address);
+  OtherAddressErr();
 };
 
 [Error]
-enum BdkError {
-  "InvalidU32Bytes",
-  "Generic",
-  "MissingCachedScripts",
-  "ScriptDoesntHaveAddressForm",
-  "NoRecipients",
-  "NoUtxosSelected",
-  "OutputBelowDustLimit",
-  "InsufficientFunds",
-  "BnBTotalTriesExceeded",
-  "BnBNoExactMatch",
-  "UnknownUtxo",
-  "TransactionNotFound",
-  "TransactionConfirmed",
-  "IrreplaceableTransaction",
-  "FeeRateTooLow",
-  "FeeTooLow",
-  "FeeRateUnavailable",
-  "MissingKeyOrigin",
-  "Key",
-  "ChecksumMismatch",
-  "SpendingPolicyRequired",
-  "InvalidPolicyPathError",
-  "Signer",
-  "InvalidNetwork",
-  "InvalidProgressValue",
-  "ProgressUpdateError",
-  "InvalidOutpoint",
-  "Descriptor",
-  "Encode",
-  "Miniscript",
-  "MiniscriptPsbt",
-  "Bip32",
-  "Secp256k1",
-  "Json",
-  "Hex",
-  "Psbt",
-  "PsbtParse",
-  "Electrum",
-  "Esplora",
-  "Sled",
-  "Rusqlite",
+interface Bip32Error {
+    CannotDeriveFromHardenedKey();
+    Secp256k1(string error_message);
+    InvalidChildNumber(u32 child_number);
+    InvalidChildNumberFormat();
+    InvalidDerivationPathFormat();
+    UnknownVersion(string version);
+    WrongExtendedKeyLength(u32 length);
+    Base58(string error_message);
+    Hex(string error_message);
+    InvalidPublicKeyHexLength(u32 length);
+    UnknownError(string error_message);
+};
+
+[Error]
+interface Bip39Error {
+  BadWordCount(u64 word_count);
+  UnknownWord(u64 index);
+  BadEntropyBitCount(u64 bit_count);
+  InvalidChecksum();
+  AmbiguousLanguages(string languages);
+};
+
+[Error]
+interface CalculateFeeError {
+  MissingTxOut(sequence<OutPoint> out_points);
+  NegativeFee(i64 fee);
+};
+
+[Error]
+interface CannotConnectError {
+  Include(u32 height);
+};
+
+[Error]
+interface CreateTxError {
+  Descriptor(string error_message);
+  Persist(string error_message);
+  Policy(string error_message);
+  SpendingPolicyRequired(string kind);
+  Version0();
+  Version1Csv();
+  LockTime(string requested, string required);
+  RbfSequence();
+  RbfSequenceCsv(string rbf, string csv);
+  FeeTooLow(u64 required);
+  FeeRateTooLow(string required);
+  NoUtxosSelected();
+  OutputBelowDustLimit(u64 index);
+  ChangePolicyDescriptor();
+  CoinSelection(string error_message);
+  InsufficientFunds(u64 needed, u64 available);
+  NoRecipients();
+  Psbt(string error_message);
+  MissingKeyOrigin(string key);
+  UnknownUtxo(string outpoint);
+  MissingNonWitnessUtxo(string outpoint);
+  MiniscriptPsbt(string error_message);
+};
+
+[Error]
+interface DescriptorError {
+    InvalidHdKeyPath();
+    InvalidDescriptorChecksum();
+    HardenedDerivationXpub();
+    MultiPath();
+    Key(string error_message);
+    Policy(string error_message);
+    InvalidDescriptorCharacter(string char);
+    Bip32(string error_message);
+    Base58(string error_message);
+    Pk(string error_message);
+    Miniscript(string error_message);
+    Hex(string error_message);
+};
+
+[Error]
+interface DescriptorKeyError {
+  Parse(string error_message);
+  InvalidKeyType();
+  Bip32(string error_message);
+};
+
+[Error]
+interface EsploraError {
+  Minreq(string error_message);
+  HttpResponse(u16 status, string error_message);
+  Parsing(string error_message);
+  StatusCode(string error_message);
+  BitcoinEncoding(string error_message);
+  HexToArray(string error_message);
+  HexToBytes(string error_message);
+  TransactionNotFound();
+  HeaderHeightNotFound(u32 height);
+  HeaderHashNotFound();
+  InvalidHttpHeaderName(string name);
+  InvalidHttpHeaderValue(string value);
+  RequestAlreadyConsumed();
+};
+
+[Error]
+interface ExtractTxError {
+  AbsurdFeeRate(u64 fee_rate);
+  MissingInputValue();
+  SendingTooMuch();
+  OtherExtractTxErr();
+};
+
+[Error]
+enum FeeRateError {
+  "ArithmeticOverflow"
+};
+
+[Error]
+interface PersistenceError {
+  Write(string error_message);
+};
+
+[Error]
+interface PsbtParseError {
+  PsbtEncoding(string error_message);
+  Base64Encoding(string error_message);
+};
+
+[Error]
+interface SignerError {
+    MissingKey();
+    InvalidKey();
+    UserCanceled();
+    InputIndexOutOfRange();
+    MissingNonWitnessUtxo();
+    InvalidNonWitnessUtxo();
+    MissingWitnessUtxo();
+    MissingWitnessScript();
+    MissingHdKeypath();
+    NonStandardSighash();
+    InvalidSighash();
+    SighashError(string error_message);
+    MiniscriptPsbt(string error_message);
+    External(string error_message);
+};
+
+[Error]
+interface TransactionError {
+  Io();
+  OversizedVectorAllocation();
+  InvalidChecksum(string expected, string actual);
+  NonMinimalVarInt();
+  ParseFailed();
+  UnsupportedSegwitFlag(u8 flag);
+  OtherTransactionErr();
+};
+
+[Error]
+interface TxidParseError {
+  InvalidTxid(string txid);
+};
+
+[Error]
+interface WalletCreationError {
+  Io(string error_message);
+  InvalidMagicBytes(sequence<u8> got, sequence<u8> expected);
+  Descriptor();
+  Persist(string error_message);
+  NotInitialized();
+  LoadedGenesisDoesNotMatch(string expected, string got);
+  LoadedNetworkDoesNotMatch(Network expected, Network? got);
+};
+
+// ------------------------------------------------------------------------
+// bdk crate - types module
+// ------------------------------------------------------------------------
+
+enum KeychainKind {
+  "External",
+  "Internal",
 };
 
 dictionary AddressInfo {
   u32 index;
-  string address;
+  Address address;
+  KeychainKind keychain;
 };
 
-enum AddressIndex {
-  "New",
-  "LastUnused",
+dictionary Balance {
+  u64 immature;
+
+  u64 trusted_pending;
+
+  u64 untrusted_pending;
+
+  u64 confirmed;
+
+  u64 trusted_spendable;
+
+  u64 total;
 };
 
+dictionary LocalOutput {
+  OutPoint outpoint;
+  TxOut txout;
+  KeychainKind keychain;
+  boolean is_spent;
+};
+
+dictionary TxOut {
+  u64 value;
+  Script script_pubkey;
+};
+
+[Enum]
+interface ChainPosition {
+  Confirmed(u32 height, u64 timestamp);
+  Unconfirmed(u64 timestamp);
+};
+
+dictionary CanonicalTx {
+  Transaction transaction;
+  ChainPosition chain_position;
+};
+
+interface FullScanRequest {};
+
+interface SyncRequest {};
+
+// ------------------------------------------------------------------------
+// bdk crate - wallet module
+// ------------------------------------------------------------------------
+
+enum ChangeSpendPolicy {
+  "ChangeAllowed",
+  "OnlyChange",
+  "ChangeForbidden"
+};
+
+interface Wallet {
+  [Throws=WalletCreationError]
+  constructor(Descriptor descriptor, Descriptor? change_descriptor, string persistence_backend_path, Network network);
+
+  [Throws=PersistenceError]
+  AddressInfo reveal_next_address(KeychainKind keychain);
+
+  Network network();
+
+  Balance get_balance();
+
+  [Throws=CannotConnectError]
+  void apply_update(Update update);
+
+  [Throws=PersistenceError]
+  boolean commit();
+
+  boolean is_mine([ByRef] Script script);
+
+  [Throws=SignerError]
+  boolean sign(Psbt psbt);
+
+  SentAndReceivedValues sent_and_received([ByRef] Transaction tx);
+
+  sequence<CanonicalTx> transactions();
+
+  [Throws=TxidParseError]
+  CanonicalTx? get_tx(string txid);
+
+  [Throws=CalculateFeeError]
+  u64 calculate_fee([ByRef] Transaction tx);
+
+  [Throws=CalculateFeeError]
+  FeeRate calculate_fee_rate([ByRef] Transaction tx);
+
+  sequence<LocalOutput> list_unspent();
+
+  sequence<LocalOutput> list_output();
+
+  FullScanRequest start_full_scan();
+
+  SyncRequest start_sync_with_revealed_spks();
+};
+
+interface Update {};
+
+interface TxBuilder {
+  constructor();
+
+  TxBuilder add_recipient([ByRef] Script script, u64 amount);
+
+  TxBuilder set_recipients(sequence<ScriptAmount> recipients);
+
+  TxBuilder add_unspendable(OutPoint unspendable);
+
+  TxBuilder unspendable(sequence<OutPoint> unspendable);
+
+  TxBuilder add_utxo(OutPoint outpoint);
+
+  TxBuilder change_policy(ChangeSpendPolicy change_policy);
+
+  TxBuilder do_not_spend_change();
+
+  TxBuilder only_spend_change();
+
+  TxBuilder manually_selected_only();
+
+  TxBuilder fee_rate([ByRef] FeeRate fee_rate);
+
+  TxBuilder fee_absolute(u64 fee);
+
+  TxBuilder drain_wallet();
+
+  TxBuilder drain_to([ByRef] Script script);
+
+  TxBuilder enable_rbf();
+
+  TxBuilder enable_rbf_with_sequence(u32 nsequence);
+
+  [Throws=CreateTxError]
+  Psbt finish([ByRef] Wallet wallet);
+};
+
+interface BumpFeeTxBuilder {
+  constructor(string txid, FeeRate fee_rate);
+
+  BumpFeeTxBuilder enable_rbf();
+
+  BumpFeeTxBuilder enable_rbf_with_sequence(u32 nsequence);
+
+  [Throws=CreateTxError]
+  Psbt finish([ByRef] Wallet wallet);
+};
+
+// ------------------------------------------------------------------------
+// bdk crate - descriptor module
+// ------------------------------------------------------------------------
+
+interface Mnemonic {
+  constructor(WordCount word_count);
+
+  [Name=from_string, Throws=Bip39Error]
+  constructor(string mnemonic);
+
+  [Name=from_entropy, Throws=Bip39Error]
+  constructor(sequence<u8> entropy);
+
+  string as_string();
+};
+
+interface DerivationPath {
+  [Throws=Bip32Error]
+  constructor(string path);
+};
+
+interface DescriptorSecretKey {
+  constructor(Network network, [ByRef] Mnemonic mnemonic, string? password);
+
+  [Name=from_string, Throws=DescriptorKeyError]
+  constructor(string secret_key);
+
+  [Throws=DescriptorKeyError]
+  DescriptorSecretKey derive([ByRef] DerivationPath path);
+
+  [Throws=DescriptorKeyError]
+  DescriptorSecretKey extend([ByRef] DerivationPath path);
+
+  DescriptorPublicKey as_public();
+
+  sequence<u8> secret_bytes();
+
+  string as_string();
+};
+
+interface DescriptorPublicKey {
+  [Name=from_string, Throws=DescriptorKeyError]
+  constructor(string public_key);
+
+  [Throws=DescriptorKeyError]
+  DescriptorPublicKey derive([ByRef] DerivationPath path);
+
+  [Throws=DescriptorKeyError]
+  DescriptorPublicKey extend([ByRef] DerivationPath path);
+
+  string as_string();
+};
+
+interface Descriptor {
+  [Throws=DescriptorError]
+  constructor(string descriptor, Network network);
+
+  [Name=new_bip44]
+  constructor([ByRef] DescriptorSecretKey secret_key, KeychainKind keychain, Network network);
+
+  [Name=new_bip44_public]
+  constructor([ByRef] DescriptorPublicKey public_key, string fingerprint, KeychainKind keychain, Network network);
+
+  [Name=new_bip49]
+  constructor([ByRef] DescriptorSecretKey secret_key, KeychainKind keychain, Network network);
+
+  [Name=new_bip49_public]
+  constructor([ByRef] DescriptorPublicKey public_key, string fingerprint, KeychainKind keychain, Network network);
+
+  [Name=new_bip84]
+  constructor([ByRef] DescriptorSecretKey secret_key, KeychainKind keychain, Network network);
+
+  [Name=new_bip84_public]
+  constructor([ByRef] DescriptorPublicKey public_key, string fingerprint, KeychainKind keychain, Network network);
+
+  [Name=new_bip86]
+  constructor([ByRef] DescriptorSecretKey secret_key, KeychainKind keychain, Network network);
+
+  [Name=new_bip86_public]
+  constructor([ByRef] DescriptorPublicKey public_key, string fingerprint, KeychainKind keychain, Network network);
+
+  string as_string();
+
+  string as_string_private();
+};
+
+// ------------------------------------------------------------------------
+// bdk_esplora crate
+// ------------------------------------------------------------------------
+
+interface EsploraClient {
+  constructor(string url);
+
+  [Throws=EsploraError]
+  Update full_scan(FullScanRequest full_scan_request, u64 stop_gap, u64 parallel_requests);
+
+  [Throws=EsploraError]
+  Update sync(SyncRequest sync_request, u64 parallel_requests);
+
+  [Throws=EsploraError]
+  void broadcast([ByRef] Transaction transaction);
+};
+
+// ------------------------------------------------------------------------
+// bdk-ffi-defined types
+// ------------------------------------------------------------------------
+
+dictionary ScriptAmount {
+  Script script;
+  u64 amount;
+};
+
+dictionary SentAndReceivedValues {
+    u64 sent;
+    u64 received;
+};
+
+// ------------------------------------------------------------------------
+// bdk crate - bitcoin re-exports
+// ------------------------------------------------------------------------
+
+interface Script {
+  constructor(sequence<u8> raw_output_script);
+
+  sequence<u8> to_bytes();
+};
+
+[NonExhaustive]
 enum Network {
   "Bitcoin",
   "Testnet",
@@ -64,44 +482,6 @@ enum Network {
   "Regtest",
 };
 
-dictionary SledDbConfiguration {
-  string path;
-  string tree_name;
-};
-
-dictionary SqliteDbConfiguration {
-  string path;
-};
-
-dictionary Balance {
-  u64 immature;
-  u64 trusted_pending;
-  u64 untrusted_pending;
-  u64 confirmed;
-  u64 spendable;
-  u64 total;
-};
-
-[Enum]
-interface DatabaseConfig {
-  Memory();
-  Sled(SledDbConfiguration config);
-  Sqlite(SqliteDbConfiguration config);
-};
-
-dictionary TransactionDetails {
-  u64? fee;
-  u64 received;
-  u64 sent;
-  string txid;
-  BlockTime? confirmation_time;
-};
-
-dictionary BlockTime {
-  u32 height;
-  u64 timestamp;
-};
-
 enum WordCount {
   "Words12",
   "Words15",
@@ -110,44 +490,52 @@ enum WordCount {
   "Words24",
 };
 
-dictionary ElectrumConfig {
-  string url;
-  string? socks5;
-  u8 retry;
-  u8? timeout;
-  u64 stop_gap;
+interface Address {
+  [Throws=AddressError]
+  constructor(string address, Network network);
+
+  Network network();
+
+  Script script_pubkey();
+
+  string to_qr_uri();
+
+  string as_string();
+
+  boolean is_valid_for_network(Network network);
 };
 
-dictionary EsploraConfig {
-  string base_url;
-  string? proxy;
-  u8? concurrency;
-  u64 stop_gap;
-  u64? timeout;
+interface Transaction {
+  [Throws=TransactionError]
+  constructor(sequence<u8> transaction_bytes);
+
+  string txid();
+
+  u64 total_size();
+
+  u64 vsize();
+
+  boolean is_coinbase();
+
+  boolean is_explicitly_rbf();
+
+  boolean is_lock_time_enabled();
+
+  i32 version();
+
+  sequence<u8> serialize();
+
+  u64 weight();
 };
 
-[Enum]
-interface BlockchainConfig {
-  Electrum(ElectrumConfig config);
-  Esplora(EsploraConfig config);
-};
+interface Psbt {
+  [Throws=PsbtParseError]
+  constructor(string psbt_base64);
 
-interface Blockchain {
-  [Throws=BdkError]
-  constructor(BlockchainConfig config);
+  string serialize();
 
-  [Throws=BdkError]
-  void broadcast([ByRef] PartiallySignedTransaction psbt);
-
-  [Throws=BdkError]
-  u32 get_height();
-
-  [Throws=BdkError]
-  string get_block_hash(u32 height);
-};
-
-callback interface Progress {
-  void update(f32 progress, string? message);
+  [Throws=ExtractTxError]
+  Transaction extract_tx();
 };
 
 dictionary OutPoint {
@@ -155,191 +543,16 @@ dictionary OutPoint {
   u32 vout;
 };
 
-dictionary TxOut {
-  u64 value;
-  string address;
-};
-
-enum KeychainKind {
-  "External",
-  "Internal",
-};
-
-dictionary LocalUtxo {
-  OutPoint outpoint;
-  TxOut txout;
-  KeychainKind keychain;
-  boolean is_spent;
-};
-
-dictionary ScriptAmount {
-  Script script;
-  u64 amount;
-};
-
-interface Wallet {
-  [Throws=BdkError]
-  constructor(string descriptor, string? change_descriptor, Network network, DatabaseConfig database_config);
-
-  [Throws=BdkError]
-  AddressInfo get_address(AddressIndex address_index);
-
-  [Throws=BdkError]
-  Balance get_balance();
-
-  [Throws=BdkError]
-  boolean sign([ByRef] PartiallySignedTransaction psbt);
-
-  [Throws=BdkError]
-  sequence<TransactionDetails> list_transactions();
-
-  Network network();
-
-  [Throws=BdkError]
-  void sync([ByRef] Blockchain blockchain, Progress? progress);
-
-  [Throws=BdkError]
-  sequence<LocalUtxo> list_unspent();
-};
-
 interface FeeRate {
-  [Name=from_sat_per_vb]
-  constructor(float sat_per_vb);
+  [Name=from_sat_per_vb, Throws=FeeRateError]
+  constructor(u64 sat_per_vb);
 
-  float as_sat_per_vb();
-};
-
-interface PartiallySignedTransaction {
-  [Throws=BdkError]
-  constructor(string psbt_base64);
-
-  string serialize();
-
-  string txid();
-
-  sequence<u8> extract_tx();
-
-  [Throws=BdkError]
-  PartiallySignedTransaction combine(PartiallySignedTransaction other);
-
-  u64? fee_amount();
-
-  FeeRate? fee_rate();
-};
-
-dictionary TxBuilderResult {
-  PartiallySignedTransaction psbt;
-  TransactionDetails transaction_details;
-};
-
-interface TxBuilder {
-  constructor();
-
-  TxBuilder add_recipient(Script script, u64 amount);
-
-  TxBuilder add_unspendable(OutPoint unspendable);
-
-  TxBuilder add_utxo(OutPoint outpoint);
-
-  TxBuilder add_utxos(sequence<OutPoint> outpoints);
-
-  TxBuilder do_not_spend_change();
-
-  TxBuilder manually_selected_only();
-
-  TxBuilder only_spend_change();
-
-  TxBuilder unspendable(sequence<OutPoint> unspendable);
-
-  TxBuilder fee_rate(float sat_per_vbyte);
-
-  TxBuilder fee_absolute(u64 fee_amount);
-
-  TxBuilder drain_wallet();
-
-  TxBuilder drain_to(string address);
-
-  TxBuilder enable_rbf();
-
-  TxBuilder enable_rbf_with_sequence(u32 nsequence);
-
-  TxBuilder add_data(sequence<u8> data);
-
-  TxBuilder set_recipients(sequence<ScriptAmount> recipients);
-
-  [Throws=BdkError]
-  TxBuilderResult finish([ByRef] Wallet wallet);
-};
-
-interface BumpFeeTxBuilder {
-  constructor(string txid, float new_fee_rate);
-
-  BumpFeeTxBuilder allow_shrinking(string address);
-
-  BumpFeeTxBuilder enable_rbf();
-
-  BumpFeeTxBuilder enable_rbf_with_sequence(u32 nsequence);
-
-  [Throws=BdkError]
-  PartiallySignedTransaction finish([ByRef] Wallet wallet);
-};
-
-interface Mnemonic {
-  constructor(WordCount word_count);
-
-  [Name=from_string, Throws=BdkError]
-  constructor(string mnemonic);
-
-  [Name=from_entropy, Throws=BdkError]
-  constructor(sequence<u8> entropy);
-
-  string as_string();
-};
-
-interface DerivationPath {
-  [Throws=BdkError]
-  constructor(string path);
-};
-
-interface DescriptorSecretKey {
-  constructor(Network network, Mnemonic mnemonic, string? password);
-
-  [Name=from_string, Throws=BdkError]
-  constructor(string secret_key);
-
-  [Throws=BdkError]
-  DescriptorSecretKey derive(DerivationPath path);
-
-  [Throws=BdkError]
-  DescriptorSecretKey extend(DerivationPath path);
-
-  DescriptorPublicKey as_public();
-
-  sequence<u8> secret_bytes();
-
-  string as_string();
-};
-
-interface DescriptorPublicKey {
-  [Name=from_string, Throws=BdkError]
-  constructor(string public_key);
-
-  [Throws=BdkError]
-  DescriptorPublicKey derive(DerivationPath path);
-
-  [Throws=BdkError]
-  DescriptorPublicKey extend(DerivationPath path);
-
-  string as_string();
-};
-
-interface Address {
-  [Throws=BdkError]
-  constructor(string address);
-
-  Script script_pubkey();
-};
-
-interface Script {
-  constructor(sequence<u8> raw_output_script);
+  [Name=from_sat_per_kwu]
+  constructor(u64 sat_per_kwu);
+
+  u64 to_sat_per_vb_ceil();
+
+  u64 to_sat_per_vb_floor();
+
+  u64 to_sat_per_kwu();
 };

bdk-ffi/src/bitcoin.rs

@@ -0,0 +1,598 @@
+use crate::error::{AddressError, FeeRateError, PsbtParseError, TransactionError};
+
+use bdk::bitcoin::address::{NetworkChecked, NetworkUnchecked};
+use bdk::bitcoin::blockdata::script::ScriptBuf as BdkScriptBuf;
+use bdk::bitcoin::blockdata::transaction::TxOut as BdkTxOut;
+use bdk::bitcoin::consensus::encode::serialize;
+use bdk::bitcoin::consensus::Decodable;
+use bdk::bitcoin::psbt::ExtractTxError;
+use bdk::bitcoin::Address as BdkAddress;
+use bdk::bitcoin::FeeRate as BdkFeeRate;
+use bdk::bitcoin::Network;
+use bdk::bitcoin::OutPoint as BdkOutPoint;
+use bdk::bitcoin::Psbt as BdkPsbt;
+use bdk::bitcoin::Transaction as BdkTransaction;
+use bdk::bitcoin::Txid;
+
+use std::io::Cursor;
+use std::str::FromStr;
+use std::sync::{Arc, Mutex};
+
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct Script(pub(crate) BdkScriptBuf);
+
+impl Script {
+    pub fn new(raw_output_script: Vec<u8>) -> Self {
+        let script: BdkScriptBuf = raw_output_script.into();
+        Script(script)
+    }
+
+    pub fn to_bytes(&self) -> Vec<u8> {
+        self.0.to_bytes()
+    }
+}
+
+impl From<BdkScriptBuf> for Script {
+    fn from(script: BdkScriptBuf) -> Self {
+        Script(script)
+    }
+}
+
+#[derive(Debug, PartialEq, Eq)]
+pub struct Address(BdkAddress<NetworkChecked>);
+
+impl Address {
+    pub fn new(address: String, network: Network) -> Result<Self, AddressError> {
+        let parsed_address = address.parse::<bdk::bitcoin::Address<NetworkUnchecked>>()?;
+        let network_checked_address = parsed_address.require_network(network)?;
+
+        Ok(Address(network_checked_address))
+    }
+
+    pub fn network(&self) -> Network {
+        *self.0.network()
+    }
+
+    pub fn script_pubkey(&self) -> Arc<Script> {
+        Arc::new(Script(self.0.script_pubkey()))
+    }
+
+    pub fn to_qr_uri(&self) -> String {
+        self.0.to_qr_uri()
+    }
+
+    pub fn as_string(&self) -> String {
+        self.0.to_string()
+    }
+
+    pub fn is_valid_for_network(&self, network: Network) -> bool {
+        let address_str = self.0.to_string();
+        if let Ok(unchecked_address) = address_str.parse::<BdkAddress<NetworkUnchecked>>() {
+            unchecked_address.is_valid_for_network(network)
+        } else {
+            false
+        }
+    }
+}
+
+impl From<Address> for BdkAddress {
+    fn from(address: Address) -> Self {
+        address.0
+    }
+}
+
+impl From<BdkAddress> for Address {
+    fn from(address: BdkAddress) -> Self {
+        Address(address)
+    }
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct Transaction(BdkTransaction);
+
+impl Transaction {
+    pub fn new(transaction_bytes: Vec<u8>) -> Result<Self, TransactionError> {
+        let mut decoder = Cursor::new(transaction_bytes);
+        let tx: BdkTransaction = BdkTransaction::consensus_decode(&mut decoder)?;
+        Ok(Transaction(tx))
+    }
+
+    pub fn txid(&self) -> String {
+        self.0.txid().to_string()
+    }
+
+    pub fn weight(&self) -> u64 {
+        self.0.weight().to_wu()
+    }
+
+    pub fn total_size(&self) -> u64 {
+        self.0.total_size() as u64
+    }
+
+    pub fn vsize(&self) -> u64 {
+        self.0.vsize() as u64
+    }
+
+    pub fn is_coinbase(&self) -> bool {
+        self.0.is_coinbase()
+    }
+
+    pub fn is_explicitly_rbf(&self) -> bool {
+        self.0.is_explicitly_rbf()
+    }
+
+    pub fn is_lock_time_enabled(&self) -> bool {
+        self.0.is_lock_time_enabled()
+    }
+
+    pub fn version(&self) -> i32 {
+        self.0.version.0
+    }
+
+    pub fn serialize(&self) -> Vec<u8> {
+        serialize(&self.0)
+    }
+}
+
+impl From<BdkTransaction> for Transaction {
+    fn from(tx: BdkTransaction) -> Self {
+        Transaction(tx)
+    }
+}
+
+impl From<&BdkTransaction> for Transaction {
+    fn from(tx: &BdkTransaction) -> Self {
+        Transaction(tx.clone())
+    }
+}
+
+impl From<&Transaction> for BdkTransaction {
+    fn from(tx: &Transaction) -> Self {
+        tx.0.clone()
+    }
+}
+
+pub struct Psbt(pub(crate) Mutex<BdkPsbt>);
+
+impl Psbt {
+    pub(crate) fn new(psbt_base64: String) -> Result<Self, PsbtParseError> {
+        let psbt: BdkPsbt = BdkPsbt::from_str(&psbt_base64)?;
+        Ok(Psbt(Mutex::new(psbt)))
+    }
+
+    pub(crate) fn serialize(&self) -> String {
+        let psbt = self.0.lock().unwrap().clone();
+        psbt.to_string()
+    }
+
+    pub(crate) fn extract_tx(&self) -> Result<Arc<Transaction>, ExtractTxError> {
+        let tx: BdkTransaction = self.0.lock().unwrap().clone().extract_tx()?;
+        let transaction: Transaction = tx.into();
+        Ok(Arc::new(transaction))
+    }
+}
+
+impl From<BdkPsbt> for Psbt {
+    fn from(psbt: BdkPsbt) -> Self {
+        Psbt(Mutex::new(psbt))
+    }
+}
+
+#[derive(Clone, Debug, PartialEq, Eq, Hash)]
+pub struct OutPoint {
+    pub txid: String,
+    pub vout: u32,
+}
+
+impl From<&OutPoint> for BdkOutPoint {
+    fn from(outpoint: &OutPoint) -> Self {
+        BdkOutPoint {
+            txid: Txid::from_str(&outpoint.txid).unwrap(),
+            vout: outpoint.vout,
+        }
+    }
+}
+
+impl From<&BdkOutPoint> for OutPoint {
+    fn from(outpoint: &BdkOutPoint) -> Self {
+        OutPoint {
+            txid: outpoint.txid.to_string(),
+            vout: outpoint.vout,
+        }
+    }
+}
+
+#[derive(Debug, Clone)]
+pub struct TxOut {
+    pub value: u64,
+    pub script_pubkey: Arc<Script>,
+}
+
+impl From<&BdkTxOut> for TxOut {
+    fn from(tx_out: &BdkTxOut) -> Self {
+        TxOut {
+            value: tx_out.value.to_sat(),
+            script_pubkey: Arc::new(Script(tx_out.script_pubkey.clone())),
+        }
+    }
+}
+
+#[derive(Clone, Debug)]
+pub struct FeeRate(pub BdkFeeRate);
+
+impl FeeRate {
+    pub fn from_sat_per_vb(sat_per_vb: u64) -> Result<Self, FeeRateError> {
+        let fee_rate: Option<BdkFeeRate> = BdkFeeRate::from_sat_per_vb(sat_per_vb);
+        match fee_rate {
+            Some(fee_rate) => Ok(FeeRate(fee_rate)),
+            None => Err(FeeRateError::ArithmeticOverflow),
+        }
+    }
+
+    pub fn from_sat_per_kwu(sat_per_kwu: u64) -> Self {
+        FeeRate(BdkFeeRate::from_sat_per_kwu(sat_per_kwu))
+    }
+
+    pub fn to_sat_per_vb_ceil(&self) -> u64 {
+        self.0.to_sat_per_vb_ceil()
+    }
+
+    pub fn to_sat_per_vb_floor(&self) -> u64 {
+        self.0.to_sat_per_vb_floor()
+    }
+
+    pub fn to_sat_per_kwu(&self) -> u64 {
+        self.0.to_sat_per_kwu()
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::bitcoin::Address;
+    use crate::bitcoin::Network;
+
+    #[test]
+    fn test_is_valid_for_network() {
+        // ====Docs tests====
+        // https://docs.rs/bitcoin/0.29.2/src/bitcoin/util/address.rs.html#798-802
+
+        let docs_address_testnet_str = "2N83imGV3gPwBzKJQvWJ7cRUY2SpUyU6A5e";
+        let docs_address_testnet =
+            Address::new(docs_address_testnet_str.to_string(), Network::Testnet).unwrap();
+        assert!(
+            docs_address_testnet.is_valid_for_network(Network::Testnet),
+            "Address should be valid for Testnet"
+        );
+        assert!(
+            docs_address_testnet.is_valid_for_network(Network::Signet),
+            "Address should be valid for Signet"
+        );
+        assert!(
+            docs_address_testnet.is_valid_for_network(Network::Regtest),
+            "Address should be valid for Regtest"
+        );
+        assert_ne!(
+            docs_address_testnet.network(),
+            Network::Bitcoin,
+            "Address should not be parsed as Bitcoin"
+        );
+
+        let docs_address_mainnet_str = "32iVBEu4dxkUQk9dJbZUiBiQdmypcEyJRf";
+        let docs_address_mainnet =
+            Address::new(docs_address_mainnet_str.to_string(), Network::Bitcoin).unwrap();
+        assert!(
+            docs_address_mainnet.is_valid_for_network(Network::Bitcoin),
+            "Address should be valid for Bitcoin"
+        );
+        assert_ne!(
+            docs_address_mainnet.network(),
+            Network::Testnet,
+            "Address should not be valid for Testnet"
+        );
+        assert_ne!(
+            docs_address_mainnet.network(),
+            Network::Signet,
+            "Address should not be valid for Signet"
+        );
+        assert_ne!(
+            docs_address_mainnet.network(),
+            Network::Regtest,
+            "Address should not be valid for Regtest"
+        );
+
+        // ====Bech32====
+
+        //     | Network         | Prefix  | Address Type |
+        //     |-----------------|---------|--------------|
+        //     | Bitcoin Mainnet | `bc1`   | Bech32       |
+        //     | Bitcoin Testnet | `tb1`   | Bech32       |
+        //     | Bitcoin Signet  | `tb1`   | Bech32       |
+        //     | Bitcoin Regtest | `bcrt1` | Bech32       |
+
+        // Bech32 - Bitcoin
+        // Valid for:
+        // - Bitcoin
+        // Not valid for:
+        // - Testnet
+        // - Signet
+        // - Regtest
+        let bitcoin_mainnet_bech32_address_str = "bc1qxhmdufsvnuaaaer4ynz88fspdsxq2h9e9cetdj";
+        let bitcoin_mainnet_bech32_address = Address::new(
+            bitcoin_mainnet_bech32_address_str.to_string(),
+            Network::Bitcoin,
+        )
+        .unwrap();
+        assert!(
+            bitcoin_mainnet_bech32_address.is_valid_for_network(Network::Bitcoin),
+            "Address should be valid for Bitcoin"
+        );
+        assert!(
+            !bitcoin_mainnet_bech32_address.is_valid_for_network(Network::Testnet),
+            "Address should not be valid for Testnet"
+        );
+        assert!(
+            !bitcoin_mainnet_bech32_address.is_valid_for_network(Network::Signet),
+            "Address should not be valid for Signet"
+        );
+        assert!(
+            !bitcoin_mainnet_bech32_address.is_valid_for_network(Network::Regtest),
+            "Address should not be valid for Regtest"
+        );
+
+        // Bech32 - Testnet
+        // Valid for:
+        // - Testnet
+        // - Regtest
+        // Not valid for:
+        // - Bitcoin
+        // - Regtest
+        let bitcoin_testnet_bech32_address_str =
+            "tb1p4nel7wkc34raczk8c4jwk5cf9d47u2284rxn98rsjrs4w3p2sheqvjmfdh";
+        let bitcoin_testnet_bech32_address = Address::new(
+            bitcoin_testnet_bech32_address_str.to_string(),
+            Network::Testnet,
+        )
+        .unwrap();
+        assert!(
+            !bitcoin_testnet_bech32_address.is_valid_for_network(Network::Bitcoin),
+            "Address should not be valid for Bitcoin"
+        );
+        assert!(
+            bitcoin_testnet_bech32_address.is_valid_for_network(Network::Testnet),
+            "Address should be valid for Testnet"
+        );
+        assert!(
+            bitcoin_testnet_bech32_address.is_valid_for_network(Network::Signet),
+            "Address should be valid for Signet"
+        );
+        assert!(
+            !bitcoin_testnet_bech32_address.is_valid_for_network(Network::Regtest),
+            "Address should not not be valid for Regtest"
+        );
+
+        // Bech32 - Signet
+        // Valid for:
+        // - Signet
+        // - Testnet
+        // Not valid for:
+        // - Bitcoin
+        // - Regtest
+        let bitcoin_signet_bech32_address_str =
+            "tb1pwzv7fv35yl7ypwj8w7al2t8apd6yf4568cs772qjwper74xqc99sk8x7tk";
+        let bitcoin_signet_bech32_address = Address::new(
+            bitcoin_signet_bech32_address_str.to_string(),
+            Network::Signet,
+        )
+        .unwrap();
+        assert!(
+            !bitcoin_signet_bech32_address.is_valid_for_network(Network::Bitcoin),
+            "Address should not be valid for Bitcoin"
+        );
+        assert!(
+            bitcoin_signet_bech32_address.is_valid_for_network(Network::Testnet),
+            "Address should be valid for Testnet"
+        );
+        assert!(
+            bitcoin_signet_bech32_address.is_valid_for_network(Network::Signet),
+            "Address should be valid for Signet"
+        );
+        assert!(
+            !bitcoin_signet_bech32_address.is_valid_for_network(Network::Regtest),
+            "Address should not not be valid for Regtest"
+        );
+
+        // Bech32 - Regtest
+        // Valid for:
+        // - Regtest
+        // Not valid for:
+        // - Bitcoin
+        // - Testnet
+        // - Signet
+        let bitcoin_regtest_bech32_address_str = "bcrt1q39c0vrwpgfjkhasu5mfke9wnym45nydfwaeems";
+        let bitcoin_regtest_bech32_address = Address::new(
+            bitcoin_regtest_bech32_address_str.to_string(),
+            Network::Regtest,
+        )
+        .unwrap();
+        assert!(
+            !bitcoin_regtest_bech32_address.is_valid_for_network(Network::Bitcoin),
+            "Address should not be valid for Bitcoin"
+        );
+        assert!(
+            !bitcoin_regtest_bech32_address.is_valid_for_network(Network::Testnet),
+            "Address should not be valid for Testnet"
+        );
+        assert!(
+            !bitcoin_regtest_bech32_address.is_valid_for_network(Network::Signet),
+            "Address should not be valid for Signet"
+        );
+        assert!(
+            bitcoin_regtest_bech32_address.is_valid_for_network(Network::Regtest),
+            "Address should be valid for Regtest"
+        );
+
+        // ====P2PKH====
+
+        //     | Network                            | Prefix for P2PKH | Prefix for P2SH |
+        //     |------------------------------------|------------------|-----------------|
+        //     | Bitcoin Mainnet                    | `1`              | `3`             |
+        //     | Bitcoin Testnet, Regtest, Signet   | `m` or `n`       | `2`             |
+
+        // P2PKH - Bitcoin
+        // Valid for:
+        // - Bitcoin
+        // Not valid for:
+        // - Testnet
+        // - Regtest
+        let bitcoin_mainnet_p2pkh_address_str = "1FfmbHfnpaZjKFvyi1okTjJJusN455paPH";
+        let bitcoin_mainnet_p2pkh_address = Address::new(
+            bitcoin_mainnet_p2pkh_address_str.to_string(),
+            Network::Bitcoin,
+        )
+        .unwrap();
+        assert!(
+            bitcoin_mainnet_p2pkh_address.is_valid_for_network(Network::Bitcoin),
+            "Address should be valid for Bitcoin"
+        );
+        assert!(
+            !bitcoin_mainnet_p2pkh_address.is_valid_for_network(Network::Testnet),
+            "Address should not be valid for Testnet"
+        );
+        assert!(
+            !bitcoin_mainnet_p2pkh_address.is_valid_for_network(Network::Regtest),
+            "Address should not be valid for Regtest"
+        );
+
+        // P2PKH - Testnet
+        // Valid for:
+        // - Testnet
+        // - Regtest
+        // Not valid for:
+        // - Bitcoin
+        let bitcoin_testnet_p2pkh_address_str = "mucFNhKMYoBQYUAEsrFVscQ1YaFQPekBpg";
+        let bitcoin_testnet_p2pkh_address = Address::new(
+            bitcoin_testnet_p2pkh_address_str.to_string(),
+            Network::Testnet,
+        )
+        .unwrap();
+        assert!(
+            !bitcoin_testnet_p2pkh_address.is_valid_for_network(Network::Bitcoin),
+            "Address should not be valid for Bitcoin"
+        );
+        assert!(
+            bitcoin_testnet_p2pkh_address.is_valid_for_network(Network::Testnet),
+            "Address should be valid for Testnet"
+        );
+        assert!(
+            bitcoin_testnet_p2pkh_address.is_valid_for_network(Network::Regtest),
+            "Address should be valid for Regtest"
+        );
+
+        // P2PKH - Regtest
+        // Valid for:
+        // - Testnet
+        // - Regtest
+        // Not valid for:
+        // - Bitcoin
+        let bitcoin_regtest_p2pkh_address_str = "msiGFK1PjCk8E6FXeoGkQPTscmcpyBdkgS";
+        let bitcoin_regtest_p2pkh_address = Address::new(
+            bitcoin_regtest_p2pkh_address_str.to_string(),
+            Network::Regtest,
+        )
+        .unwrap();
+        assert!(
+            !bitcoin_regtest_p2pkh_address.is_valid_for_network(Network::Bitcoin),
+            "Address should not be valid for Bitcoin"
+        );
+        assert!(
+            bitcoin_regtest_p2pkh_address.is_valid_for_network(Network::Testnet),
+            "Address should be valid for Testnet"
+        );
+        assert!(
+            bitcoin_regtest_p2pkh_address.is_valid_for_network(Network::Regtest),
+            "Address should be valid for Regtest"
+        );
+
+        // ====P2SH====
+
+        //     | Network                            | Prefix for P2PKH | Prefix for P2SH |
+        //     |------------------------------------|------------------|-----------------|
+        //     | Bitcoin Mainnet                    | `1`              | `3`             |
+        //     | Bitcoin Testnet, Regtest, Signet   | `m` or `n`       | `2`             |
+
+        // P2SH - Bitcoin
+        // Valid for:
+        // - Bitcoin
+        // Not valid for:
+        // - Testnet
+        // - Regtest
+        let bitcoin_mainnet_p2sh_address_str = "3J98t1WpEZ73CNmQviecrnyiWrnqRhWNLy";
+        let bitcoin_mainnet_p2sh_address = Address::new(
+            bitcoin_mainnet_p2sh_address_str.to_string(),
+            Network::Bitcoin,
+        )
+        .unwrap();
+        assert!(
+            bitcoin_mainnet_p2sh_address.is_valid_for_network(Network::Bitcoin),
+            "Address should be valid for Bitcoin"
+        );
+        assert!(
+            !bitcoin_mainnet_p2sh_address.is_valid_for_network(Network::Testnet),
+            "Address should not be valid for Testnet"
+        );
+        assert!(
+            !bitcoin_mainnet_p2sh_address.is_valid_for_network(Network::Regtest),
+            "Address should not be valid for Regtest"
+        );
+
+        // P2SH - Testnet
+        // Valid for:
+        // - Testnet
+        // - Regtest
+        // Not valid for:
+        // - Bitcoin
+        let bitcoin_testnet_p2sh_address_str = "2NFUBBRcTJbYc1D4HSCbJhKZp6YCV4PQFpQ";
+        let bitcoin_testnet_p2sh_address = Address::new(
+            bitcoin_testnet_p2sh_address_str.to_string(),
+            Network::Testnet,
+        )
+        .unwrap();
+        assert!(
+            !bitcoin_testnet_p2sh_address.is_valid_for_network(Network::Bitcoin),
+            "Address should not be valid for Bitcoin"
+        );
+        assert!(
+            bitcoin_testnet_p2sh_address.is_valid_for_network(Network::Testnet),
+            "Address should be valid for Testnet"
+        );
+        assert!(
+            bitcoin_testnet_p2sh_address.is_valid_for_network(Network::Regtest),
+            "Address should be valid for Regtest"
+        );
+
+        // P2SH - Regtest
+        // Valid for:
+        // - Testnet
+        // - Regtest
+        // Not valid for:
+        // - Bitcoin
+        let bitcoin_regtest_p2sh_address_str = "2NEb8N5B9jhPUCBchz16BB7bkJk8VCZQjf3";
+        let bitcoin_regtest_p2sh_address = Address::new(
+            bitcoin_regtest_p2sh_address_str.to_string(),
+            Network::Regtest,
+        )
+        .unwrap();
+        assert!(
+            !bitcoin_regtest_p2sh_address.is_valid_for_network(Network::Bitcoin),
+            "Address should not be valid for Bitcoin"
+        );
+        assert!(
+            bitcoin_regtest_p2sh_address.is_valid_for_network(Network::Testnet),
+            "Address should be valid for Testnet"
+        );
+        assert!(
+            bitcoin_regtest_p2sh_address.is_valid_for_network(Network::Regtest),
+            "Address should be valid for Regtest"
+        );
+    }
+}

bdk-ffi/src/descriptor.rs

@@ -0,0 +1,397 @@
+use crate::error::DescriptorError;
+use crate::keys::DescriptorPublicKey;
+use crate::keys::DescriptorSecretKey;
+
+use bdk::bitcoin::bip32::Fingerprint;
+use bdk::bitcoin::key::Secp256k1;
+use bdk::bitcoin::Network;
+use bdk::descriptor::{ExtendedDescriptor, IntoWalletDescriptor};
+use bdk::keys::DescriptorPublicKey as BdkDescriptorPublicKey;
+use bdk::keys::{DescriptorSecretKey as BdkDescriptorSecretKey, KeyMap};
+use bdk::template::{
+    Bip44, Bip44Public, Bip49, Bip49Public, Bip84, Bip84Public, Bip86, Bip86Public,
+    DescriptorTemplate,
+};
+use bdk::KeychainKind;
+
+use std::str::FromStr;
+
+#[derive(Debug)]
+pub struct Descriptor {
+    pub extended_descriptor: ExtendedDescriptor,
+    pub key_map: KeyMap,
+}
+
+impl Descriptor {
+    pub(crate) fn new(descriptor: String, network: Network) -> Result<Self, DescriptorError> {
+        let secp = Secp256k1::new();
+        let (extended_descriptor, key_map) = descriptor.into_wallet_descriptor(&secp, network)?;
+        Ok(Self {
+            extended_descriptor,
+            key_map,
+        })
+    }
+
+    pub(crate) fn new_bip44(
+        secret_key: &DescriptorSecretKey,
+        keychain_kind: KeychainKind,
+        network: Network,
+    ) -> Self {
+        let derivable_key = &secret_key.0;
+
+        match derivable_key {
+            BdkDescriptorSecretKey::Single(_) => {
+                unreachable!()
+            }
+            BdkDescriptorSecretKey::XPrv(descriptor_x_key) => {
+                let derivable_key = descriptor_x_key.xkey;
+                let (extended_descriptor, key_map, _) =
+                    Bip44(derivable_key, keychain_kind).build(network).unwrap();
+                Self {
+                    extended_descriptor,
+                    key_map,
+                }
+            }
+            BdkDescriptorSecretKey::MultiXPrv(_) => {
+                unreachable!()
+            }
+        }
+    }
+
+    pub(crate) fn new_bip44_public(
+        public_key: &DescriptorPublicKey,
+        fingerprint: String,
+        keychain_kind: KeychainKind,
+        network: Network,
+    ) -> Self {
+        let fingerprint = Fingerprint::from_str(fingerprint.as_str()).unwrap();
+        let derivable_key = &public_key.0;
+
+        match derivable_key {
+            BdkDescriptorPublicKey::Single(_) => {
+                unreachable!()
+            }
+            BdkDescriptorPublicKey::XPub(descriptor_x_key) => {
+                let derivable_key = descriptor_x_key.xkey;
+                let (extended_descriptor, key_map, _) =
+                    Bip44Public(derivable_key, fingerprint, keychain_kind)
+                        .build(network)
+                        .unwrap();
+
+                Self {
+                    extended_descriptor,
+                    key_map,
+                }
+            }
+            BdkDescriptorPublicKey::MultiXPub(_) => {
+                unreachable!()
+            }
+        }
+    }
+
+    pub(crate) fn new_bip49(
+        secret_key: &DescriptorSecretKey,
+        keychain_kind: KeychainKind,
+        network: Network,
+    ) -> Self {
+        let derivable_key = &secret_key.0;
+
+        match derivable_key {
+            BdkDescriptorSecretKey::Single(_) => {
+                unreachable!()
+            }
+            BdkDescriptorSecretKey::XPrv(descriptor_x_key) => {
+                let derivable_key = descriptor_x_key.xkey;
+                let (extended_descriptor, key_map, _) =
+                    Bip49(derivable_key, keychain_kind).build(network).unwrap();
+                Self {
+                    extended_descriptor,
+                    key_map,
+                }
+            }
+            BdkDescriptorSecretKey::MultiXPrv(_) => {
+                unreachable!()
+            }
+        }
+    }
+
+    pub(crate) fn new_bip49_public(
+        public_key: &DescriptorPublicKey,
+        fingerprint: String,
+        keychain_kind: KeychainKind,
+        network: Network,
+    ) -> Self {
+        let fingerprint = Fingerprint::from_str(fingerprint.as_str()).unwrap();
+        let derivable_key = &public_key.0;
+
+        match derivable_key {
+            BdkDescriptorPublicKey::Single(_) => {
+                unreachable!()
+            }
+            BdkDescriptorPublicKey::XPub(descriptor_x_key) => {
+                let derivable_key = descriptor_x_key.xkey;
+                let (extended_descriptor, key_map, _) =
+                    Bip49Public(derivable_key, fingerprint, keychain_kind)
+                        .build(network)
+                        .unwrap();
+
+                Self {
+                    extended_descriptor,
+                    key_map,
+                }
+            }
+            BdkDescriptorPublicKey::MultiXPub(_) => {
+                unreachable!()
+            }
+        }
+    }
+
+    pub(crate) fn new_bip84(
+        secret_key: &DescriptorSecretKey,
+        keychain_kind: KeychainKind,
+        network: Network,
+    ) -> Self {
+        let derivable_key = &secret_key.0;
+
+        match derivable_key {
+            BdkDescriptorSecretKey::Single(_) => {
+                unreachable!()
+            }
+            BdkDescriptorSecretKey::XPrv(descriptor_x_key) => {
+                let derivable_key = descriptor_x_key.xkey;
+                let (extended_descriptor, key_map, _) =
+                    Bip84(derivable_key, keychain_kind).build(network).unwrap();
+                Self {
+                    extended_descriptor,
+                    key_map,
+                }
+            }
+            BdkDescriptorSecretKey::MultiXPrv(_) => {
+                unreachable!()
+            }
+        }
+    }
+
+    pub(crate) fn new_bip84_public(
+        public_key: &DescriptorPublicKey,
+        fingerprint: String,
+        keychain_kind: KeychainKind,
+        network: Network,
+    ) -> Self {
+        let fingerprint = Fingerprint::from_str(fingerprint.as_str()).unwrap();
+        let derivable_key = &public_key.0;
+
+        match derivable_key {
+            BdkDescriptorPublicKey::Single(_) => {
+                unreachable!()
+            }
+            BdkDescriptorPublicKey::XPub(descriptor_x_key) => {
+                let derivable_key = descriptor_x_key.xkey;
+                let (extended_descriptor, key_map, _) =
+                    Bip84Public(derivable_key, fingerprint, keychain_kind)
+                        .build(network)
+                        .unwrap();
+
+                Self {
+                    extended_descriptor,
+                    key_map,
+                }
+            }
+            BdkDescriptorPublicKey::MultiXPub(_) => {
+                unreachable!()
+            }
+        }
+    }
+
+    pub(crate) fn new_bip86(
+        secret_key: &DescriptorSecretKey,
+        keychain_kind: KeychainKind,
+        network: Network,
+    ) -> Self {
+        let derivable_key = &secret_key.0;
+
+        match derivable_key {
+            BdkDescriptorSecretKey::Single(_) => {
+                unreachable!()
+            }
+            BdkDescriptorSecretKey::XPrv(descriptor_x_key) => {
+                let derivable_key = descriptor_x_key.xkey;
+                let (extended_descriptor, key_map, _) =
+                    Bip86(derivable_key, keychain_kind).build(network).unwrap();
+                Self {
+                    extended_descriptor,
+                    key_map,
+                }
+            }
+            BdkDescriptorSecretKey::MultiXPrv(_) => {
+                unreachable!()
+            }
+        }
+    }
+
+    pub(crate) fn new_bip86_public(
+        public_key: &DescriptorPublicKey,
+        fingerprint: String,
+        keychain_kind: KeychainKind,
+        network: Network,
+    ) -> Self {
+        let fingerprint = Fingerprint::from_str(fingerprint.as_str()).unwrap();
+        let derivable_key = &public_key.0;
+
+        match derivable_key {
+            BdkDescriptorPublicKey::Single(_) => {
+                unreachable!()
+            }
+            BdkDescriptorPublicKey::XPub(descriptor_x_key) => {
+                let derivable_key = descriptor_x_key.xkey;
+                let (extended_descriptor, key_map, _) =
+                    Bip86Public(derivable_key, fingerprint, keychain_kind)
+                        .build(network)
+                        .unwrap();
+
+                Self {
+                    extended_descriptor,
+                    key_map,
+                }
+            }
+            BdkDescriptorPublicKey::MultiXPub(_) => {
+                unreachable!()
+            }
+        }
+    }
+
+    pub(crate) fn as_string_private(&self) -> String {
+        let descriptor = &self.extended_descriptor;
+        let key_map = &self.key_map;
+        descriptor.to_string_with_secret(key_map)
+    }
+
+    pub(crate) fn as_string(&self) -> String {
+        self.extended_descriptor.to_string()
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use crate::*;
+    use assert_matches::assert_matches;
+
+    fn get_descriptor_secret_key() -> DescriptorSecretKey {
+        let mnemonic = Mnemonic::from_string("chaos fabric time speed sponsor all flat solution wisdom trophy crack object robot pave observe combine where aware bench orient secret primary cable detect".to_string()).unwrap();
+        DescriptorSecretKey::new(Network::Testnet, &mnemonic, None)
+    }
+
+    #[test]
+    fn test_descriptor_templates() {
+        let master: DescriptorSecretKey = get_descriptor_secret_key();
+        println!("Master: {:?}", master.as_string());
+        // tprv8ZgxMBicQKsPdWuqM1t1CDRvQtQuBPyfL6GbhQwtxDKgUAVPbxmj71pRA8raTqLrec5LyTs5TqCxdABcZr77bt2KyWA5bizJHnC4g4ysm4h
+        let handmade_public_44 = master
+            .derive(&DerivationPath::new("m/44h/1h/0h".to_string()).unwrap())
+            .unwrap()
+            .as_public();
+        println!("Public 44: {}", handmade_public_44.as_string());
+        // Public 44: [d1d04177/44'/1'/0']tpubDCoPjomfTqh1e7o1WgGpQtARWtkueXQAepTeNpWiitS3Sdv8RKJ1yvTrGHcwjDXp2SKyMrTEca4LoN7gEUiGCWboyWe2rz99Kf4jK4m2Zmx/*
+        let handmade_public_49 = master
+            .derive(&DerivationPath::new("m/49h/1h/0h".to_string()).unwrap())
+            .unwrap()
+            .as_public();
+        println!("Public 49: {}", handmade_public_49.as_string());
+        // Public 49: [d1d04177/49'/1'/0']tpubDC65ZRvk1NDddHrVAUAZrUPJ772QXzooNYmPywYF9tMyNLYKf5wpKE7ZJvK9kvfG3FV7rCsHBNXy1LVKW95jrmC7c7z4hq7a27aD2sRrAhR/*
+        let handmade_public_84 = master
+            .derive(&DerivationPath::new("m/84h/1h/0h".to_string()).unwrap())
+            .unwrap()
+            .as_public();
+        println!("Public 84: {}", handmade_public_84.as_string());
+        // Public 84: [d1d04177/84'/1'/0']tpubDDNxbq17egjFk2edjv8oLnzxk52zny9aAYNv9CMqTzA4mQDiQq818sEkNe9Gzmd4QU8558zftqbfoVBDQorG3E4Wq26tB2JeE4KUoahLkx6/*
+        let handmade_public_86 = master
+            .derive(&DerivationPath::new("m/86h/1h/0h".to_string()).unwrap())
+            .unwrap()
+            .as_public();
+        println!("Public 86: {}", handmade_public_86.as_string());
+        // Public 86: [d1d04177/86'/1'/0']tpubDCJzjbcGbdEfXMWaL6QmgVmuSfXkrue7m2YNoacWwyc7a2XjXaKojRqNEbo41CFL3PyYmKdhwg2fkGpLX4SQCbQjCGxAkWHJTw9WEeenrJb/*
+        let template_private_44 =
+            Descriptor::new_bip44(&master, KeychainKind::External, Network::Testnet);
+        let template_private_49 =
+            Descriptor::new_bip49(&master, KeychainKind::External, Network::Testnet);
+        let template_private_84 =
+            Descriptor::new_bip84(&master, KeychainKind::External, Network::Testnet);
+        let template_private_86 =
+            Descriptor::new_bip86(&master, KeychainKind::External, Network::Testnet);
+        // the extended public keys are the same when creating them manually as they are with the templates
+        println!("Template 49: {}", template_private_49.as_string());
+        println!("Template 44: {}", template_private_44.as_string());
+        println!("Template 84: {}", template_private_84.as_string());
+        println!("Template 86: {}", template_private_86.as_string());
+        let template_public_44 = Descriptor::new_bip44_public(
+            &handmade_public_44,
+            "d1d04177".to_string(),
+            KeychainKind::External,
+            Network::Testnet,
+        );
+        let template_public_49 = Descriptor::new_bip49_public(
+            &handmade_public_49,
+            "d1d04177".to_string(),
+            KeychainKind::External,
+            Network::Testnet,
+        );
+        let template_public_84 = Descriptor::new_bip84_public(
+            &handmade_public_84,
+            "d1d04177".to_string(),
+            KeychainKind::External,
+            Network::Testnet,
+        );
+        let template_public_86 = Descriptor::new_bip86_public(
+            &handmade_public_86,
+            "d1d04177".to_string(),
+            KeychainKind::External,
+            Network::Testnet,
+        );
+        println!("Template public 49: {}", template_public_49.as_string());
+        println!("Template public 44: {}", template_public_44.as_string());
+        println!("Template public 84: {}", template_public_84.as_string());
+        println!("Template public 86: {}", template_public_86.as_string());
+        // when using a public key, both as_string and as_string_private return the same string
+        assert_eq!(
+            template_public_44.as_string_private(),
+            template_public_44.as_string()
+        );
+        assert_eq!(
+            template_public_49.as_string_private(),
+            template_public_49.as_string()
+        );
+        assert_eq!(
+            template_public_84.as_string_private(),
+            template_public_84.as_string()
+        );
+        assert_eq!(
+            template_public_86.as_string_private(),
+            template_public_86.as_string()
+        );
+        // when using as_string on a private key, we get the same result as when using it on a public key
+        assert_eq!(
+            template_private_44.as_string(),
+            template_public_44.as_string()
+        );
+        assert_eq!(
+            template_private_49.as_string(),
+            template_public_49.as_string()
+        );
+        assert_eq!(
+            template_private_84.as_string(),
+            template_public_84.as_string()
+        );
+        assert_eq!(
+            template_private_86.as_string(),
+            template_public_86.as_string()
+        );
+    }
+    #[test]
+    fn test_descriptor_from_string() {
+        let descriptor1 = Descriptor::new("wpkh(tprv8hwWMmPE4BVNxGdVt3HhEERZhondQvodUY7Ajyseyhudr4WabJqWKWLr4Wi2r26CDaNCQhhxEftEaNzz7dPGhWuKFU4VULesmhEfZYyBXdE/0/*)".to_string(), Network::Testnet);
+        let descriptor2 = Descriptor::new("wpkh(tprv8hwWMmPE4BVNxGdVt3HhEERZhondQvodUY7Ajyseyhudr4WabJqWKWLr4Wi2r26CDaNCQhhxEftEaNzz7dPGhWuKFU4VULesmhEfZYyBXdE/0/*)".to_string(), Network::Bitcoin);
+        // Creating a Descriptor using an extended key that doesn't match the network provided will throw a DescriptorError::Key with inner InvalidNetwork error
+        assert!(descriptor1.is_ok());
+        assert_matches!(descriptor2.unwrap_err(), DescriptorError::Key { .. });
+    }
+}

bdk-ffi/src/esplora.rs

@@ -0,0 +1,83 @@
+use crate::bitcoin::Transaction;
+use crate::error::EsploraError;
+use crate::types::{FullScanRequest, SyncRequest};
+use crate::wallet::Update;
+use std::collections::BTreeMap;
+
+use bdk::bitcoin::Transaction as BdkTransaction;
+use bdk::chain::spk_client::FullScanRequest as BdkFullScanRequest;
+use bdk::chain::spk_client::FullScanResult as BdkFullScanResult;
+use bdk::chain::spk_client::SyncRequest as BdkSyncRequest;
+use bdk::chain::spk_client::SyncResult as BdkSyncResult;
+use bdk::KeychainKind;
+use bdk_esplora::esplora_client::{BlockingClient, Builder};
+use bdk_esplora::EsploraExt;
+
+use std::sync::Arc;
+
+pub struct EsploraClient(BlockingClient);
+
+impl EsploraClient {
+    pub fn new(url: String) -> Self {
+        let client = Builder::new(url.as_str()).build_blocking();
+        Self(client)
+    }
+
+    pub fn full_scan(
+        &self,
+        request: Arc<FullScanRequest>,
+        stop_gap: u64,
+        parallel_requests: u64,
+    ) -> Result<Arc<Update>, EsploraError> {
+        // using option and take is not ideal but the only way to take full ownership of the request
+        let request: BdkFullScanRequest<KeychainKind> = request
+            .0
+            .lock()
+            .unwrap()
+            .take()
+            .ok_or(EsploraError::RequestAlreadyConsumed)?;
+
+        let result: BdkFullScanResult<KeychainKind> =
+            self.0
+                .full_scan(request, stop_gap as usize, parallel_requests as usize)?;
+
+        let update = bdk::wallet::Update {
+            last_active_indices: result.last_active_indices,
+            graph: result.graph_update,
+            chain: Some(result.chain_update),
+        };
+
+        Ok(Arc::new(Update(update)))
+    }
+
+    pub fn sync(
+        &self,
+        request: Arc<SyncRequest>,
+        parallel_requests: u64,
+    ) -> Result<Arc<Update>, EsploraError> {
+        // using option and take is not ideal but the only way to take full ownership of the request
+        let request: BdkSyncRequest = request
+            .0
+            .lock()
+            .unwrap()
+            .take()
+            .ok_or(EsploraError::RequestAlreadyConsumed)?;
+
+        let result: BdkSyncResult = self.0.sync(request, parallel_requests as usize)?;
+
+        let update = bdk::wallet::Update {
+            last_active_indices: BTreeMap::default(),
+            graph: result.graph_update,
+            chain: Some(result.chain_update),
+        };
+
+        Ok(Arc::new(Update(update)))
+    }
+
+    pub fn broadcast(&self, transaction: &Transaction) -> Result<(), EsploraError> {
+        let bdk_transaction: BdkTransaction = transaction.into();
+        self.0
+            .broadcast(&bdk_transaction)
+            .map_err(EsploraError::from)
+    }
+}

bdk-ffi/src/keys.rs

@@ -0,0 +1,355 @@
+use crate::error::{Bip32Error, Bip39Error, DescriptorKeyError};
+
+use bdk::bitcoin::bip32::DerivationPath as BdkDerivationPath;
+use bdk::bitcoin::key::Secp256k1;
+use bdk::bitcoin::secp256k1::rand;
+use bdk::bitcoin::secp256k1::rand::Rng;
+use bdk::bitcoin::Network;
+use bdk::keys::bip39::WordCount;
+use bdk::keys::bip39::{Language, Mnemonic as BdkMnemonic};
+use bdk::keys::{
+    DerivableKey, DescriptorPublicKey as BdkDescriptorPublicKey,
+    DescriptorSecretKey as BdkDescriptorSecretKey, ExtendedKey, GeneratableKey, GeneratedKey,
+};
+use bdk::miniscript::descriptor::{DescriptorXKey, Wildcard};
+use bdk::miniscript::BareCtx;
+
+use std::ops::Deref;
+use std::str::FromStr;
+use std::sync::{Arc, Mutex};
+
+pub(crate) struct Mnemonic(pub(crate) BdkMnemonic);
+
+impl Mnemonic {
+    pub(crate) fn new(word_count: WordCount) -> Self {
+        // TODO 4: I DON'T KNOW IF THIS IS A DECENT WAY TO GENERATE ENTROPY PLEASE CONFIRM
+        let mut rng = rand::thread_rng();
+        let mut entropy = [0u8; 32];
+        rng.fill(&mut entropy);
+
+        let generated_key: GeneratedKey<_, BareCtx> =
+            BdkMnemonic::generate_with_entropy((word_count, Language::English), entropy).unwrap();
+        let mnemonic = BdkMnemonic::parse_in(Language::English, generated_key.to_string()).unwrap();
+        Mnemonic(mnemonic)
+    }
+
+    pub(crate) fn from_string(mnemonic: String) -> Result<Self, Bip39Error> {
+        BdkMnemonic::from_str(&mnemonic)
+            .map(Mnemonic)
+            .map_err(Bip39Error::from)
+    }
+
+    pub(crate) fn from_entropy(entropy: Vec<u8>) -> Result<Self, Bip39Error> {
+        BdkMnemonic::from_entropy(entropy.as_slice())
+            .map(Mnemonic)
+            .map_err(Bip39Error::from)
+    }
+
+    pub(crate) fn as_string(&self) -> String {
+        self.0.to_string()
+    }
+}
+
+pub(crate) struct DerivationPath {
+    inner_mutex: Mutex<BdkDerivationPath>,
+}
+
+impl DerivationPath {
+    pub(crate) fn new(path: String) -> Result<Self, Bip32Error> {
+        BdkDerivationPath::from_str(&path)
+            .map(|x| DerivationPath {
+                inner_mutex: Mutex::new(x),
+            })
+            .map_err(Bip32Error::from)
+    }
+}
+
+#[derive(Debug)]
+pub struct DescriptorSecretKey(pub(crate) BdkDescriptorSecretKey);
+
+impl DescriptorSecretKey {
+    pub(crate) fn new(network: Network, mnemonic: &Mnemonic, password: Option<String>) -> Self {
+        let mnemonic = mnemonic.0.clone();
+        let xkey: ExtendedKey = (mnemonic, password).into_extended_key().unwrap();
+        let descriptor_secret_key = BdkDescriptorSecretKey::XPrv(DescriptorXKey {
+            origin: None,
+            xkey: xkey.into_xprv(network).unwrap(),
+            derivation_path: BdkDerivationPath::master(),
+            wildcard: Wildcard::Unhardened,
+        });
+        Self(descriptor_secret_key)
+    }
+
+    pub(crate) fn from_string(private_key: String) -> Result<Self, DescriptorKeyError> {
+        let descriptor_secret_key = BdkDescriptorSecretKey::from_str(private_key.as_str())
+            .map_err(DescriptorKeyError::from)?;
+        Ok(Self(descriptor_secret_key))
+    }
+
+    pub(crate) fn derive(&self, path: &DerivationPath) -> Result<Arc<Self>, DescriptorKeyError> {
+        let secp = Secp256k1::new();
+        let descriptor_secret_key = &self.0;
+        let path = path.inner_mutex.lock().unwrap().deref().clone();
+        match descriptor_secret_key {
+            BdkDescriptorSecretKey::Single(_) => Err(DescriptorKeyError::InvalidKeyType),
+            BdkDescriptorSecretKey::XPrv(descriptor_x_key) => {
+                let derived_xprv = descriptor_x_key
+                    .xkey
+                    .derive_priv(&secp, &path)
+                    .map_err(DescriptorKeyError::from)?;
+                let key_source = match descriptor_x_key.origin.clone() {
+                    Some((fingerprint, origin_path)) => (fingerprint, origin_path.extend(path)),
+                    None => (descriptor_x_key.xkey.fingerprint(&secp), path),
+                };
+                let derived_descriptor_secret_key = BdkDescriptorSecretKey::XPrv(DescriptorXKey {
+                    origin: Some(key_source),
+                    xkey: derived_xprv,
+                    derivation_path: BdkDerivationPath::default(),
+                    wildcard: descriptor_x_key.wildcard,
+                });
+                Ok(Arc::new(Self(derived_descriptor_secret_key)))
+            }
+            BdkDescriptorSecretKey::MultiXPrv(_) => Err(DescriptorKeyError::InvalidKeyType),
+        }
+    }
+
+    pub(crate) fn extend(&self, path: &DerivationPath) -> Result<Arc<Self>, DescriptorKeyError> {
+        let descriptor_secret_key = &self.0;
+        let path = path.inner_mutex.lock().unwrap().deref().clone();
+        match descriptor_secret_key {
+            BdkDescriptorSecretKey::Single(_) => Err(DescriptorKeyError::InvalidKeyType),
+            BdkDescriptorSecretKey::XPrv(descriptor_x_key) => {
+                let extended_path = descriptor_x_key.derivation_path.extend(path);
+                let extended_descriptor_secret_key = BdkDescriptorSecretKey::XPrv(DescriptorXKey {
+                    origin: descriptor_x_key.origin.clone(),
+                    xkey: descriptor_x_key.xkey,
+                    derivation_path: extended_path,
+                    wildcard: descriptor_x_key.wildcard,
+                });
+                Ok(Arc::new(Self(extended_descriptor_secret_key)))
+            }
+            BdkDescriptorSecretKey::MultiXPrv(_) => Err(DescriptorKeyError::InvalidKeyType),
+        }
+    }
+
+    pub(crate) fn as_public(&self) -> Arc<DescriptorPublicKey> {
+        let secp = Secp256k1::new();
+        let descriptor_public_key = self.0.to_public(&secp).unwrap();
+        Arc::new(DescriptorPublicKey(descriptor_public_key))
+    }
+
+    pub(crate) fn secret_bytes(&self) -> Vec<u8> {
+        let inner = &self.0;
+        let secret_bytes: Vec<u8> = match inner {
+            BdkDescriptorSecretKey::Single(_) => {
+                unreachable!()
+            }
+            BdkDescriptorSecretKey::XPrv(descriptor_x_key) => {
+                descriptor_x_key.xkey.private_key.secret_bytes().to_vec()
+            }
+            BdkDescriptorSecretKey::MultiXPrv(_) => {
+                unreachable!()
+            }
+        };
+
+        secret_bytes
+    }
+
+    pub(crate) fn as_string(&self) -> String {
+        self.0.to_string()
+    }
+}
+
+#[derive(Debug)]
+pub struct DescriptorPublicKey(pub(crate) BdkDescriptorPublicKey);
+
+impl DescriptorPublicKey {
+    pub(crate) fn from_string(public_key: String) -> Result<Self, DescriptorKeyError> {
+        let descriptor_public_key = BdkDescriptorPublicKey::from_str(public_key.as_str())
+            .map_err(DescriptorKeyError::from)?;
+        Ok(Self(descriptor_public_key))
+    }
+
+    pub(crate) fn derive(&self, path: &DerivationPath) -> Result<Arc<Self>, DescriptorKeyError> {
+        let secp = Secp256k1::new();
+        let descriptor_public_key = &self.0;
+        let path = path.inner_mutex.lock().unwrap().deref().clone();
+
+        match descriptor_public_key {
+            BdkDescriptorPublicKey::Single(_) => Err(DescriptorKeyError::InvalidKeyType),
+            BdkDescriptorPublicKey::XPub(descriptor_x_key) => {
+                let derived_xpub = descriptor_x_key
+                    .xkey
+                    .derive_pub(&secp, &path)
+                    .map_err(DescriptorKeyError::from)?;
+                let key_source = match descriptor_x_key.origin.clone() {
+                    Some((fingerprint, origin_path)) => (fingerprint, origin_path.extend(path)),
+                    None => (descriptor_x_key.xkey.fingerprint(), path),
+                };
+                let derived_descriptor_public_key = BdkDescriptorPublicKey::XPub(DescriptorXKey {
+                    origin: Some(key_source),
+                    xkey: derived_xpub,
+                    derivation_path: BdkDerivationPath::default(),
+                    wildcard: descriptor_x_key.wildcard,
+                });
+                Ok(Arc::new(Self(derived_descriptor_public_key)))
+            }
+            BdkDescriptorPublicKey::MultiXPub(_) => Err(DescriptorKeyError::InvalidKeyType),
+        }
+    }
+
+    pub(crate) fn extend(&self, path: &DerivationPath) -> Result<Arc<Self>, DescriptorKeyError> {
+        let descriptor_public_key = &self.0;
+        let path = path.inner_mutex.lock().unwrap().deref().clone();
+        match descriptor_public_key {
+            BdkDescriptorPublicKey::Single(_) => Err(DescriptorKeyError::InvalidKeyType),
+            BdkDescriptorPublicKey::XPub(descriptor_x_key) => {
+                let extended_path = descriptor_x_key.derivation_path.extend(path);
+                let extended_descriptor_public_key = BdkDescriptorPublicKey::XPub(DescriptorXKey {
+                    origin: descriptor_x_key.origin.clone(),
+                    xkey: descriptor_x_key.xkey,
+                    derivation_path: extended_path,
+                    wildcard: descriptor_x_key.wildcard,
+                });
+                Ok(Arc::new(Self(extended_descriptor_public_key)))
+            }
+            BdkDescriptorPublicKey::MultiXPub(_) => Err(DescriptorKeyError::InvalidKeyType),
+        }
+    }
+
+    pub(crate) fn as_string(&self) -> String {
+        self.0.to_string()
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use crate::keys::{DerivationPath, DescriptorPublicKey, DescriptorSecretKey, Mnemonic};
+    // use bdk::bitcoin::hashes::hex::ToHex;
+    use crate::error::DescriptorKeyError;
+    use bdk::bitcoin::Network;
+    use std::sync::Arc;
+
+    fn get_inner() -> DescriptorSecretKey {
+        let mnemonic = Mnemonic::from_string("chaos fabric time speed sponsor all flat solution wisdom trophy crack object robot pave observe combine where aware bench orient secret primary cable detect".to_string()).unwrap();
+        DescriptorSecretKey::new(Network::Testnet, &mnemonic, None)
+    }
+
+    fn derive_dsk(
+        key: &DescriptorSecretKey,
+        path: &str,
+    ) -> Result<Arc<DescriptorSecretKey>, DescriptorKeyError> {
+        let path = DerivationPath::new(path.to_string()).unwrap();
+        key.derive(&path)
+    }
+
+    fn extend_dsk(
+        key: &DescriptorSecretKey,
+        path: &str,
+    ) -> Result<Arc<DescriptorSecretKey>, DescriptorKeyError> {
+        let path = DerivationPath::new(path.to_string()).unwrap();
+        key.extend(&path)
+    }
+
+    fn derive_dpk(
+        key: &DescriptorPublicKey,
+        path: &str,
+    ) -> Result<Arc<DescriptorPublicKey>, DescriptorKeyError> {
+        let path = DerivationPath::new(path.to_string()).unwrap();
+        key.derive(&path)
+    }
+
+    fn extend_dpk(
+        key: &DescriptorPublicKey,
+        path: &str,
+    ) -> Result<Arc<DescriptorPublicKey>, DescriptorKeyError> {
+        let path = DerivationPath::new(path.to_string()).unwrap();
+        key.extend(&path)
+    }
+
+    #[test]
+    fn test_generate_descriptor_secret_key() {
+        let master_dsk = get_inner();
+        assert_eq!(master_dsk.as_string(), "tprv8ZgxMBicQKsPdWuqM1t1CDRvQtQuBPyfL6GbhQwtxDKgUAVPbxmj71pRA8raTqLrec5LyTs5TqCxdABcZr77bt2KyWA5bizJHnC4g4ysm4h/*");
+        assert_eq!(master_dsk.as_public().as_string(), "tpubD6NzVbkrYhZ4WywdEfYbbd62yuvqLjAZuPsNyvzCNV85JekAEMbKHWSHLF9h3j45SxewXDcLv328B1SEZrxg4iwGfmdt1pDFjZiTkGiFqGa/*");
+    }
+
+    #[test]
+    fn test_derive_self() {
+        let master_dsk = get_inner();
+        let derived_dsk: &DescriptorSecretKey = &derive_dsk(&master_dsk, "m").unwrap();
+        assert_eq!(derived_dsk.as_string(), "[d1d04177]tprv8ZgxMBicQKsPdWuqM1t1CDRvQtQuBPyfL6GbhQwtxDKgUAVPbxmj71pRA8raTqLrec5LyTs5TqCxdABcZr77bt2KyWA5bizJHnC4g4ysm4h/*");
+        let master_dpk: &DescriptorPublicKey = &master_dsk.as_public();
+        let derived_dpk: &DescriptorPublicKey = &derive_dpk(master_dpk, "m").unwrap();
+        assert_eq!(derived_dpk.as_string(), "[d1d04177]tpubD6NzVbkrYhZ4WywdEfYbbd62yuvqLjAZuPsNyvzCNV85JekAEMbKHWSHLF9h3j45SxewXDcLv328B1SEZrxg4iwGfmdt1pDFjZiTkGiFqGa/*");
+    }
+
+    #[test]
+    fn test_derive_descriptors_keys() {
+        let master_dsk = get_inner();
+        let derived_dsk: &DescriptorSecretKey = &derive_dsk(&master_dsk, "m/0").unwrap();
+        assert_eq!(derived_dsk.as_string(), "[d1d04177/0]tprv8d7Y4JLmD25jkKbyDZXcdoPHu1YtMHuH21qeN7mFpjfumtSU7eZimFYUCSa3MYzkEYfSNRBV34GEr2QXwZCMYRZ7M1g6PUtiLhbJhBZEGYJ/*");
+        let master_dpk: &DescriptorPublicKey = &master_dsk.as_public();
+        let derived_dpk: &DescriptorPublicKey = &derive_dpk(master_dpk, "m/0").unwrap();
+        assert_eq!(derived_dpk.as_string(), "[d1d04177/0]tpubD9oaCiP1MPmQdndm7DCD3D3QU34pWd6BbKSRedoZF1UJcNhEk3PJwkALNYkhxeTKL29oGNR7psqvT1KZydCGqUDEKXN6dVQJY2R8ooLPy8m/*");
+    }
+
+    #[test]
+    fn test_extend_descriptor_keys() {
+        let master_dsk = get_inner();
+        let extended_dsk: &DescriptorSecretKey = &extend_dsk(&master_dsk, "m/0").unwrap();
+        assert_eq!(extended_dsk.as_string(), "tprv8ZgxMBicQKsPdWuqM1t1CDRvQtQuBPyfL6GbhQwtxDKgUAVPbxmj71pRA8raTqLrec5LyTs5TqCxdABcZr77bt2KyWA5bizJHnC4g4ysm4h/0/*");
+        let master_dpk: &DescriptorPublicKey = &master_dsk.as_public();
+        let extended_dpk: &DescriptorPublicKey = &extend_dpk(master_dpk, "m/0").unwrap();
+        assert_eq!(extended_dpk.as_string(), "tpubD6NzVbkrYhZ4WywdEfYbbd62yuvqLjAZuPsNyvzCNV85JekAEMbKHWSHLF9h3j45SxewXDcLv328B1SEZrxg4iwGfmdt1pDFjZiTkGiFqGa/0/*");
+        let wif = "L2wTu6hQrnDMiFNWA5na6jB12ErGQqtXwqpSL7aWquJaZG8Ai3ch";
+        let extended_key = DescriptorSecretKey::from_string(wif.to_string()).unwrap();
+        let result = extended_key.derive(&DerivationPath::new("m/0".to_string()).unwrap());
+        dbg!(&result);
+        assert!(result.is_err());
+    }
+
+    #[test]
+    fn test_from_str_inner() {
+        let key1 = "L2wTu6hQrnDMiFNWA5na6jB12ErGQqtXwqpSL7aWquJaZG8Ai3ch";
+        let key2 = "tprv8ZgxMBicQKsPcwcD4gSnMti126ZiETsuX7qwrtMypr6FBwAP65puFn4v6c3jrN9VwtMRMph6nyT63NrfUL4C3nBzPcduzVSuHD7zbX2JKVc/1/1/1/*";
+        let private_descriptor_key1 = DescriptorSecretKey::from_string(key1.to_string()).unwrap();
+        let private_descriptor_key2 = DescriptorSecretKey::from_string(key2.to_string()).unwrap();
+        dbg!(private_descriptor_key1);
+        dbg!(private_descriptor_key2);
+        // Should error out because you can't produce a DescriptorSecretKey from an xpub
+        let key0 = "tpubDBrgjcxBxnXyL575sHdkpKohWu5qHKoQ7TJXKNrYznh5fVEGBv89hA8ENW7A8MFVpFUSvgLqc4Nj1WZcpePX6rrxviVtPowvMuGF5rdT2Vi";
+        assert!(DescriptorSecretKey::from_string(key0.to_string()).is_err());
+    }
+
+    #[test]
+    fn test_derive_and_extend_inner() {
+        let master_dsk = get_inner();
+        // derive DescriptorSecretKey with path "m/0" from master
+        let derived_dsk: &DescriptorSecretKey = &derive_dsk(&master_dsk, "m/0").unwrap();
+        assert_eq!(derived_dsk.as_string(), "[d1d04177/0]tprv8d7Y4JLmD25jkKbyDZXcdoPHu1YtMHuH21qeN7mFpjfumtSU7eZimFYUCSa3MYzkEYfSNRBV34GEr2QXwZCMYRZ7M1g6PUtiLhbJhBZEGYJ/*");
+        // extend derived_dsk with path "m/0"
+        let extended_dsk: &DescriptorSecretKey = &extend_dsk(derived_dsk, "m/0").unwrap();
+        assert_eq!(extended_dsk.as_string(), "[d1d04177/0]tprv8d7Y4JLmD25jkKbyDZXcdoPHu1YtMHuH21qeN7mFpjfumtSU7eZimFYUCSa3MYzkEYfSNRBV34GEr2QXwZCMYRZ7M1g6PUtiLhbJhBZEGYJ/0/*");
+    }
+
+    #[test]
+    fn test_derive_hardened_path_using_public() {
+        let master_dpk = get_inner().as_public();
+        let derived_dpk = &derive_dpk(&master_dpk, "m/84h/1h/0h");
+        assert!(derived_dpk.is_err());
+    }
+
+    // TODO 7: It appears that the to_hex() method is not available anymore.
+    //       Look into the correct way to pull the hex out of the DescriptorSecretKey.
+    //       Note: ToHex was removed in bitcoin_hashes 0.12.0
+    // #[test]
+    // fn test_retrieve_master_secret_key() {
+    //     let master_dpk = get_inner();
+    //     let master_private_key = master_dpk.secret_bytes().to_hex();
+    //     assert_eq!(
+    //         master_private_key,
+    //         "e93315d6ce401eb4db803a56232f0ed3e69b053774e6047df54f1bd00e5ea936"
+    //     )
+    // }
+}

bdk-ffi/src/types.rs

@@ -0,0 +1,115 @@
+use crate::bitcoin::{Address, OutPoint, Script, Transaction, TxOut};
+
+use bdk::chain::spk_client::FullScanRequest as BdkFullScanRequest;
+use bdk::chain::spk_client::SyncRequest as BdkSyncRequest;
+use bdk::chain::tx_graph::CanonicalTx as BdkCanonicalTx;
+use bdk::chain::{ChainPosition as BdkChainPosition, ConfirmationTimeHeightAnchor};
+use bdk::wallet::AddressInfo as BdkAddressInfo;
+use bdk::wallet::Balance as BdkBalance;
+use bdk::KeychainKind;
+use bdk::LocalOutput as BdkLocalOutput;
+
+use std::sync::{Arc, Mutex};
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum ChainPosition {
+    Confirmed { height: u32, timestamp: u64 },
+    Unconfirmed { timestamp: u64 },
+}
+
+pub struct CanonicalTx {
+    pub transaction: Arc<Transaction>,
+    pub chain_position: ChainPosition,
+}
+
+impl From<BdkCanonicalTx<'_, Arc<bdk::bitcoin::Transaction>, ConfirmationTimeHeightAnchor>>
+    for CanonicalTx
+{
+    fn from(
+        tx: BdkCanonicalTx<'_, Arc<bdk::bitcoin::Transaction>, ConfirmationTimeHeightAnchor>,
+    ) -> Self {
+        let chain_position = match tx.chain_position {
+            BdkChainPosition::Confirmed(anchor) => ChainPosition::Confirmed {
+                height: anchor.confirmation_height,
+                timestamp: anchor.confirmation_time,
+            },
+            BdkChainPosition::Unconfirmed(timestamp) => ChainPosition::Unconfirmed { timestamp },
+        };
+
+        CanonicalTx {
+            transaction: Arc::new(Transaction::from(tx.tx_node.tx.as_ref().clone())),
+            chain_position,
+        }
+    }
+}
+
+pub struct ScriptAmount {
+    pub script: Arc<Script>,
+    pub amount: u64,
+}
+
+pub struct AddressInfo {
+    pub index: u32,
+    pub address: Arc<Address>,
+    pub keychain: KeychainKind,
+}
+
+impl From<BdkAddressInfo> for AddressInfo {
+    fn from(address_info: BdkAddressInfo) -> Self {
+        AddressInfo {
+            index: address_info.index,
+            address: Arc::new(address_info.address.into()),
+            keychain: address_info.keychain,
+        }
+    }
+}
+
+pub struct Balance {
+    pub immature: u64,
+    pub trusted_pending: u64,
+    pub untrusted_pending: u64,
+    pub confirmed: u64,
+    pub trusted_spendable: u64,
+    pub total: u64,
+}
+
+impl From<BdkBalance> for Balance {
+    fn from(bdk_balance: BdkBalance) -> Self {
+        Balance {
+            immature: bdk_balance.immature,
+            trusted_pending: bdk_balance.trusted_pending,
+            untrusted_pending: bdk_balance.untrusted_pending,
+            confirmed: bdk_balance.confirmed,
+            trusted_spendable: bdk_balance.trusted_spendable(),
+            total: bdk_balance.total(),
+        }
+    }
+}
+
+pub struct LocalOutput {
+    pub outpoint: OutPoint,
+    pub txout: TxOut,
+    pub keychain: KeychainKind,
+    pub is_spent: bool,
+}
+
+impl From<BdkLocalOutput> for LocalOutput {
+    fn from(local_utxo: BdkLocalOutput) -> Self {
+        LocalOutput {
+            outpoint: OutPoint {
+                txid: local_utxo.outpoint.txid.to_string(),
+                vout: local_utxo.outpoint.vout,
+            },
+            txout: TxOut {
+                value: local_utxo.txout.value.to_sat(),
+                script_pubkey: Arc::new(Script(local_utxo.txout.script_pubkey)),
+            },
+            keychain: local_utxo.keychain,
+            is_spent: local_utxo.is_spent,
+        }
+    }
+}
+
+pub struct FullScanRequest(pub(crate) Mutex<Option<BdkFullScanRequest<KeychainKind>>>);
+
+pub struct SyncRequest(pub(crate) Mutex<Option<BdkSyncRequest>>);

bdk-ffi/src/wallet.rs

@@ -0,0 +1,716 @@
+use crate::bitcoin::{FeeRate, OutPoint, Psbt, Script, Transaction};
+use crate::descriptor::Descriptor;
+use crate::error::{
+    CalculateFeeError, CannotConnectError, CreateTxError, PersistenceError, SignerError,
+    TxidParseError, WalletCreationError,
+};
+use crate::types::{
+    AddressInfo, Balance, CanonicalTx, FullScanRequest, LocalOutput, ScriptAmount, SyncRequest,
+};
+
+use bdk::bitcoin::blockdata::script::ScriptBuf as BdkScriptBuf;
+use bdk::bitcoin::Network;
+use bdk::bitcoin::Psbt as BdkPsbt;
+use bdk::bitcoin::{OutPoint as BdkOutPoint, Sequence, Txid};
+use bdk::wallet::tx_builder::ChangeSpendPolicy;
+use bdk::wallet::{ChangeSet, Update as BdkUpdate};
+use bdk::Wallet as BdkWallet;
+use bdk::{KeychainKind, SignOptions};
+use bdk_file_store::Store;
+
+use std::collections::HashSet;
+use std::str::FromStr;
+use std::sync::{Arc, Mutex, MutexGuard};
+
+const MAGIC_BYTES: &[u8] = "bdkffi".as_bytes();
+
+pub struct Wallet {
+    inner_mutex: Mutex<BdkWallet>,
+}
+
+impl Wallet {
+    pub fn new(
+        descriptor: Arc<Descriptor>,
+        change_descriptor: Option<Arc<Descriptor>>,
+        persistence_backend_path: String,
+        network: Network,
+    ) -> Result<Self, WalletCreationError> {
+        let descriptor = descriptor.as_string_private();
+        let change_descriptor = change_descriptor.map(|d| d.as_string_private());
+        let db = Store::<ChangeSet>::open_or_create_new(MAGIC_BYTES, persistence_backend_path)?;
+
+        let wallet: BdkWallet =
+            BdkWallet::new_or_load(&descriptor, change_descriptor.as_ref(), db, network)?;
+
+        Ok(Wallet {
+            inner_mutex: Mutex::new(wallet),
+        })
+    }
+
+    pub(crate) fn get_wallet(&self) -> MutexGuard<BdkWallet> {
+        self.inner_mutex.lock().expect("wallet")
+    }
+
+    pub fn reveal_next_address(
+        &self,
+        keychain_kind: KeychainKind,
+    ) -> Result<AddressInfo, PersistenceError> {
+        self.get_wallet()
+            .reveal_next_address(keychain_kind)
+            .map(|address_info| address_info.into())
+            .map_err(|e| PersistenceError::Write {
+                error_message: e.to_string(),
+            })
+    }
+
+    pub fn apply_update(&self, update: Arc<Update>) -> Result<(), CannotConnectError> {
+        self.get_wallet()
+            .apply_update(update.0.clone())
+            .map_err(CannotConnectError::from)
+    }
+
+    pub fn commit(&self) -> Result<bool, PersistenceError> {
+        self.get_wallet()
+            .commit()
+            .map_err(|e| PersistenceError::Write {
+                error_message: e.to_string(),
+            })
+    }
+
+    pub fn network(&self) -> Network {
+        self.get_wallet().network()
+    }
+
+    pub fn get_balance(&self) -> Balance {
+        let bdk_balance: bdk::wallet::Balance = self.get_wallet().get_balance();
+        Balance::from(bdk_balance)
+    }
+
+    pub fn is_mine(&self, script: &Script) -> bool {
+        self.get_wallet().is_mine(&script.0)
+    }
+
+    pub(crate) fn sign(
+        &self,
+        psbt: Arc<Psbt>,
+        // sign_options: Option<SignOptions>,
+    ) -> Result<bool, SignerError> {
+        let mut psbt = psbt.0.lock().unwrap();
+        self.get_wallet()
+            .sign(&mut psbt, SignOptions::default())
+            .map_err(SignerError::from)
+    }
+
+    pub fn sent_and_received(&self, tx: &Transaction) -> SentAndReceivedValues {
+        let (sent, received): (u64, u64) = self.get_wallet().sent_and_received(&tx.into());
+        SentAndReceivedValues { sent, received }
+    }
+
+    pub fn transactions(&self) -> Vec<CanonicalTx> {
+        self.get_wallet()
+            .transactions()
+            .map(|tx| tx.into())
+            .collect()
+    }
+
+    pub fn get_tx(&self, txid: String) -> Result<Option<CanonicalTx>, TxidParseError> {
+        let txid =
+            Txid::from_str(txid.as_str()).map_err(|_| TxidParseError::InvalidTxid { txid })?;
+        Ok(self.get_wallet().get_tx(txid).map(|tx| tx.into()))
+    }
+
+    pub fn calculate_fee(&self, tx: &Transaction) -> Result<u64, CalculateFeeError> {
+        self.get_wallet()
+            .calculate_fee(&tx.into())
+            .map_err(|e| e.into())
+    }
+
+    pub fn calculate_fee_rate(&self, tx: &Transaction) -> Result<Arc<FeeRate>, CalculateFeeError> {
+        self.get_wallet()
+            .calculate_fee_rate(&tx.into())
+            .map(|bdk_fee_rate| Arc::new(FeeRate(bdk_fee_rate)))
+            .map_err(|e| e.into())
+    }
+
+    pub fn list_unspent(&self) -> Vec<LocalOutput> {
+        self.get_wallet().list_unspent().map(|o| o.into()).collect()
+    }
+
+    pub fn list_output(&self) -> Vec<LocalOutput> {
+        self.get_wallet().list_output().map(|o| o.into()).collect()
+    }
+
+    pub fn start_full_scan(&self) -> Arc<FullScanRequest> {
+        let request = self.get_wallet().start_full_scan();
+        Arc::new(FullScanRequest(Mutex::new(Some(request))))
+    }
+
+    pub fn start_sync_with_revealed_spks(&self) -> Arc<SyncRequest> {
+        let request = self.get_wallet().start_sync_with_revealed_spks();
+        Arc::new(SyncRequest(Mutex::new(Some(request))))
+    }
+}
+
+pub struct SentAndReceivedValues {
+    pub sent: u64,
+    pub received: u64,
+}
+
+pub struct Update(pub(crate) BdkUpdate);
+
+#[derive(Clone, Debug)]
+pub struct TxBuilder {
+    pub(crate) recipients: Vec<(BdkScriptBuf, u64)>,
+    pub(crate) utxos: Vec<OutPoint>,
+    pub(crate) unspendable: HashSet<OutPoint>,
+    pub(crate) change_policy: ChangeSpendPolicy,
+    pub(crate) manually_selected_only: bool,
+    pub(crate) fee_rate: Option<FeeRate>,
+    pub(crate) fee_absolute: Option<u64>,
+    pub(crate) drain_wallet: bool,
+    pub(crate) drain_to: Option<BdkScriptBuf>,
+    pub(crate) rbf: Option<RbfValue>,
+    // pub(crate) data: Vec<u8>,
+}
+
+impl TxBuilder {
+    pub(crate) fn new() -> Self {
+        TxBuilder {
+            recipients: Vec::new(),
+            utxos: Vec::new(),
+            unspendable: HashSet::new(),
+            change_policy: ChangeSpendPolicy::ChangeAllowed,
+            manually_selected_only: false,
+            fee_rate: None,
+            fee_absolute: None,
+            drain_wallet: false,
+            drain_to: None,
+            rbf: None,
+            // data: Vec::new(),
+        }
+    }
+
+    pub(crate) fn add_recipient(&self, script: &Script, amount: u64) -> Arc<Self> {
+        let mut recipients: Vec<(BdkScriptBuf, u64)> = self.recipients.clone();
+        recipients.append(&mut vec![(script.0.clone(), amount)]);
+
+        Arc::new(TxBuilder {
+            recipients,
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn set_recipients(&self, recipients: Vec<ScriptAmount>) -> Arc<Self> {
+        let recipients = recipients
+            .iter()
+            .map(|script_amount| (script_amount.script.0.clone(), script_amount.amount))
+            .collect();
+        Arc::new(TxBuilder {
+            recipients,
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn add_unspendable(&self, unspendable: OutPoint) -> Arc<Self> {
+        let mut unspendable_hash_set = self.unspendable.clone();
+        unspendable_hash_set.insert(unspendable);
+        Arc::new(TxBuilder {
+            unspendable: unspendable_hash_set,
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn unspendable(&self, unspendable: Vec<OutPoint>) -> Arc<Self> {
+        Arc::new(TxBuilder {
+            unspendable: unspendable.into_iter().collect(),
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn add_utxo(&self, outpoint: OutPoint) -> Arc<Self> {
+        self.add_utxos(vec![outpoint])
+    }
+
+    pub(crate) fn add_utxos(&self, mut outpoints: Vec<OutPoint>) -> Arc<Self> {
+        let mut utxos = self.utxos.to_vec();
+        utxos.append(&mut outpoints);
+        Arc::new(TxBuilder {
+            utxos,
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn change_policy(&self, change_policy: ChangeSpendPolicy) -> Arc<Self> {
+        Arc::new(TxBuilder {
+            change_policy,
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn do_not_spend_change(&self) -> Arc<Self> {
+        Arc::new(TxBuilder {
+            change_policy: ChangeSpendPolicy::ChangeForbidden,
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn only_spend_change(&self) -> Arc<Self> {
+        Arc::new(TxBuilder {
+            change_policy: ChangeSpendPolicy::OnlyChange,
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn manually_selected_only(&self) -> Arc<Self> {
+        Arc::new(TxBuilder {
+            manually_selected_only: true,
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn fee_rate(&self, fee_rate: &FeeRate) -> Arc<Self> {
+        Arc::new(TxBuilder {
+            fee_rate: Some(fee_rate.clone()),
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn fee_absolute(&self, fee_amount: u64) -> Arc<Self> {
+        Arc::new(TxBuilder {
+            fee_absolute: Some(fee_amount),
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn drain_wallet(&self) -> Arc<Self> {
+        Arc::new(TxBuilder {
+            drain_wallet: true,
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn drain_to(&self, script: &Script) -> Arc<Self> {
+        Arc::new(TxBuilder {
+            drain_to: Some(script.0.clone()),
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn enable_rbf(&self) -> Arc<Self> {
+        Arc::new(TxBuilder {
+            rbf: Some(RbfValue::Default),
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn enable_rbf_with_sequence(&self, nsequence: u32) -> Arc<Self> {
+        Arc::new(TxBuilder {
+            rbf: Some(RbfValue::Value(nsequence)),
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn finish(&self, wallet: &Arc<Wallet>) -> Result<Arc<Psbt>, CreateTxError> {
+        // TODO: I had to change the wallet here to be mutable. Why is that now required with the 1.0 API?
+        let mut wallet = wallet.get_wallet();
+        let mut tx_builder = wallet.build_tx();
+        for (script, amount) in &self.recipients {
+            tx_builder.add_recipient(script.clone(), *amount);
+        }
+        tx_builder.change_policy(self.change_policy);
+        if !self.utxos.is_empty() {
+            let bdk_utxos: Vec<BdkOutPoint> = self.utxos.iter().map(BdkOutPoint::from).collect();
+            tx_builder
+                .add_utxos(&bdk_utxos)
+                .map_err(CreateTxError::from)?;
+        }
+        if !self.unspendable.is_empty() {
+            let bdk_unspendable: Vec<BdkOutPoint> =
+                self.unspendable.iter().map(BdkOutPoint::from).collect();
+            tx_builder.unspendable(bdk_unspendable);
+        }
+        if self.manually_selected_only {
+            tx_builder.manually_selected_only();
+        }
+        if let Some(fee_rate) = &self.fee_rate {
+            tx_builder.fee_rate(fee_rate.0);
+        }
+        if let Some(fee_amount) = self.fee_absolute {
+            tx_builder.fee_absolute(fee_amount);
+        }
+        if self.drain_wallet {
+            tx_builder.drain_wallet();
+        }
+        if let Some(script) = &self.drain_to {
+            tx_builder.drain_to(script.clone());
+        }
+        if let Some(rbf) = &self.rbf {
+            match *rbf {
+                RbfValue::Default => {
+                    tx_builder.enable_rbf();
+                }
+                RbfValue::Value(nsequence) => {
+                    tx_builder.enable_rbf_with_sequence(Sequence(nsequence));
+                }
+            }
+        }
+
+        let psbt = tx_builder.finish().map_err(CreateTxError::from)?;
+
+        Ok(Arc::new(psbt.into()))
+    }
+}
+
+#[derive(Clone)]
+pub(crate) struct BumpFeeTxBuilder {
+    pub(crate) txid: String,
+    pub(crate) fee_rate: Arc<FeeRate>,
+    pub(crate) rbf: Option<RbfValue>,
+}
+
+impl BumpFeeTxBuilder {
+    pub(crate) fn new(txid: String, fee_rate: Arc<FeeRate>) -> Self {
+        Self {
+            txid,
+            fee_rate,
+            rbf: None,
+        }
+    }
+
+    pub(crate) fn enable_rbf(&self) -> Arc<Self> {
+        Arc::new(Self {
+            rbf: Some(RbfValue::Default),
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn enable_rbf_with_sequence(&self, nsequence: u32) -> Arc<Self> {
+        Arc::new(Self {
+            rbf: Some(RbfValue::Value(nsequence)),
+            ..self.clone()
+        })
+    }
+
+    pub(crate) fn finish(&self, wallet: &Wallet) -> Result<Arc<Psbt>, CreateTxError> {
+        let txid = Txid::from_str(self.txid.as_str()).map_err(|_| CreateTxError::UnknownUtxo {
+            outpoint: self.txid.clone(),
+        })?;
+        let mut wallet = wallet.get_wallet();
+        let mut tx_builder = wallet.build_fee_bump(txid).map_err(CreateTxError::from)?;
+        tx_builder.fee_rate(self.fee_rate.0);
+        if let Some(rbf) = &self.rbf {
+            match *rbf {
+                RbfValue::Default => {
+                    tx_builder.enable_rbf();
+                }
+                RbfValue::Value(nsequence) => {
+                    tx_builder.enable_rbf_with_sequence(Sequence(nsequence));
+                }
+            }
+        }
+        let psbt: BdkPsbt = tx_builder.finish()?;
+
+        Ok(Arc::new(psbt.into()))
+    }
+}
+
+#[derive(Clone, Debug)]
+pub enum RbfValue {
+    Default,
+    Value(u32),
+}
+
+// #[cfg(test)]
+// mod test {
+//     use crate::database::DatabaseConfig;
+//     use crate::descriptor::Descriptor;
+//     use crate::keys::{DescriptorSecretKey, Mnemonic};
+//     use crate::wallet::{AddressIndex, TxBuilder, Wallet};
+//     use crate::Script;
+//     use assert_matches::assert_matches;
+//     use bdk::bitcoin::{Address, Network};
+//     // use bdk::wallet::get_funded_wallet;
+//     use bdk::KeychainKind;
+//     use std::str::FromStr;
+//     use std::sync::{Arc, Mutex};
+//
+//     // #[test]
+//     // fn test_drain_wallet() {
+//     //     let test_wpkh = "wpkh(cVpPVruEDdmutPzisEsYvtST1usBR3ntr8pXSyt6D2YYqXRyPcFW)";
+//     //     let (funded_wallet, _, _) = get_funded_wallet(test_wpkh);
+//     //     let test_wallet = Wallet {
+//     //         inner_mutex: Mutex::new(funded_wallet),
+//     //     };
+//     //     let drain_to_address = "tb1ql7w62elx9ucw4pj5lgw4l028hmuw80sndtntxt".to_string();
+//     //     let drain_to_script = crate::Address::new(drain_to_address)
+//     //         .unwrap()
+//     //         .script_pubkey();
+//     //     let tx_builder = TxBuilder::new()
+//     //         .drain_wallet()
+//     //         .drain_to(drain_to_script.clone());
+//     //     assert!(tx_builder.drain_wallet);
+//     //     assert_eq!(tx_builder.drain_to, Some(drain_to_script.inner.clone()));
+//     //
+//     //     let tx_builder_result = tx_builder.finish(&test_wallet).unwrap();
+//     //     let psbt = tx_builder_result.psbt.inner.lock().unwrap().clone();
+//     //     let tx_details = tx_builder_result.transaction_details;
+//     //
+//     //     // confirm one input with 50,000 sats
+//     //     assert_eq!(psbt.inputs.len(), 1);
+//     //     let input_value = psbt
+//     //         .inputs
+//     //         .get(0)
+//     //         .cloned()
+//     //         .unwrap()
+//     //         .non_witness_utxo
+//     //         .unwrap()
+//     //         .output
+//     //         .get(0)
+//     //         .unwrap()
+//     //         .value;
+//     //     assert_eq!(input_value, 50_000_u64);
+//     //
+//     //     // confirm one output to correct address with all sats - fee
+//     //     assert_eq!(psbt.outputs.len(), 1);
+//     //     let output_address = Address::from_script(
+//     //         &psbt
+//     //             .unsigned_tx
+//     //             .output
+//     //             .get(0)
+//     //             .cloned()
+//     //             .unwrap()
+//     //             .script_pubkey,
+//     //         Network::Testnet,
+//     //     )
+//     //     .unwrap();
+//     //     assert_eq!(
+//     //         output_address,
+//     //         Address::from_str("tb1ql7w62elx9ucw4pj5lgw4l028hmuw80sndtntxt").unwrap()
+//     //     );
+//     //     let output_value = psbt.unsigned_tx.output.get(0).cloned().unwrap().value;
+//     //     assert_eq!(output_value, 49_890_u64); // input - fee
+//     //
+//     //     assert_eq!(
+//     //         tx_details.txid,
+//     //         "312f1733badab22dc26b8dcbc83ba5629fb7b493af802e8abe07d865e49629c5"
+//     //     );
+//     //     assert_eq!(tx_details.received, 0);
+//     //     assert_eq!(tx_details.sent, 50000);
+//     //     assert!(tx_details.fee.is_some());
+//     //     assert_eq!(tx_details.fee.unwrap(), 110);
+//     //     assert!(tx_details.confirmation_time.is_none());
+//     // }
+//
+//     #[test]
+//     fn test_peek_reset_address() {
+//         let test_wpkh = "wpkh(tprv8hwWMmPE4BVNxGdVt3HhEERZhondQvodUY7Ajyseyhudr4WabJqWKWLr4Wi2r26CDaNCQhhxEftEaNzz7dPGhWuKFU4VULesmhEfZYyBXdE/0/*)";
+//         let descriptor = Descriptor::new(test_wpkh.to_string(), Network::Regtest).unwrap();
+//         let change_descriptor = Descriptor::new(
+//             test_wpkh.to_string().replace("/0/*", "/1/*"),
+//             Network::Regtest,
+//         )
+//         .unwrap();
+//
+//         let wallet = Wallet::new(
+//             Arc::new(descriptor),
+//             Some(Arc::new(change_descriptor)),
+//             Network::Regtest,
+//             DatabaseConfig::Memory,
+//         )
+//         .unwrap();
+//
+//         assert_eq!(
+//             wallet
+//                 .get_address(AddressIndex::Peek { index: 2 })
+//                 .unwrap()
+//                 .address
+//                 .as_string(),
+//             "bcrt1q5g0mq6dkmwzvxscqwgc932jhgcxuqqkjv09tkj"
+//         );
+//
+//         assert_eq!(
+//             wallet
+//                 .get_address(AddressIndex::Peek { index: 1 })
+//                 .unwrap()
+//                 .address
+//                 .as_string(),
+//             "bcrt1q0xs7dau8af22rspp4klya4f7lhggcnqfun2y3a"
+//         );
+//
+//         // new index still 0
+//         assert_eq!(
+//             wallet
+//                 .get_address(AddressIndex::New)
+//                 .unwrap()
+//                 .address
+//                 .as_string(),
+//             "bcrt1qqjn9gky9mkrm3c28e5e87t5akd3twg6xezp0tv"
+//         );
+//
+//         // new index now 1
+//         assert_eq!(
+//             wallet
+//                 .get_address(AddressIndex::New)
+//                 .unwrap()
+//                 .address
+//                 .as_string(),
+//             "bcrt1q0xs7dau8af22rspp4klya4f7lhggcnqfun2y3a"
+//         );
+//
+//         // new index now 2
+//         assert_eq!(
+//             wallet
+//                 .get_address(AddressIndex::New)
+//                 .unwrap()
+//                 .address
+//                 .as_string(),
+//             "bcrt1q5g0mq6dkmwzvxscqwgc932jhgcxuqqkjv09tkj"
+//         );
+//
+//         // peek index 1
+//         assert_eq!(
+//             wallet
+//                 .get_address(AddressIndex::Peek { index: 1 })
+//                 .unwrap()
+//                 .address
+//                 .as_string(),
+//             "bcrt1q0xs7dau8af22rspp4klya4f7lhggcnqfun2y3a"
+//         );
+//
+//         // reset to index 0
+//         // assert_eq!(
+//         //     wallet
+//         //         .get_address(AddressIndex::Reset { index: 0 })
+//         //         .unwrap()
+//         //         .address
+//         //         .as_string(),
+//         //     "bcrt1qqjn9gky9mkrm3c28e5e87t5akd3twg6xezp0tv"
+//         // );
+//
+//         // new index 1 again
+//         assert_eq!(
+//             wallet
+//                 .get_address(AddressIndex::New)
+//                 .unwrap()
+//                 .address
+//                 .as_string(),
+//             "bcrt1q0xs7dau8af22rspp4klya4f7lhggcnqfun2y3a"
+//         );
+//     }
+//
+//     #[test]
+//     fn test_get_address() {
+//         let test_wpkh = "wpkh(tprv8hwWMmPE4BVNxGdVt3HhEERZhondQvodUY7Ajyseyhudr4WabJqWKWLr4Wi2r26CDaNCQhhxEftEaNzz7dPGhWuKFU4VULesmhEfZYyBXdE/0/*)";
+//         let descriptor = Descriptor::new(test_wpkh.to_string(), Network::Regtest).unwrap();
+//         let change_descriptor = Descriptor::new(
+//             test_wpkh.to_string().replace("/0/*", "/1/*"),
+//             Network::Regtest,
+//         )
+//         .unwrap();
+//
+//         let wallet = Wallet::new(
+//             Arc::new(descriptor),
+//             Some(Arc::new(change_descriptor)),
+//             Network::Regtest,
+//             DatabaseConfig::Memory,
+//         )
+//         .unwrap();
+//
+//         assert_eq!(
+//             wallet
+//                 .get_address(AddressIndex::New)
+//                 .unwrap()
+//                 .address
+//                 .as_string(),
+//             "bcrt1qqjn9gky9mkrm3c28e5e87t5akd3twg6xezp0tv"
+//         );
+//
+//         assert_eq!(
+//             wallet
+//                 .get_address(AddressIndex::New)
+//                 .unwrap()
+//                 .address
+//                 .as_string(),
+//             "bcrt1q0xs7dau8af22rspp4klya4f7lhggcnqfun2y3a"
+//         );
+//
+//         assert_eq!(
+//             wallet
+//                 .get_address(AddressIndex::LastUnused)
+//                 .unwrap()
+//                 .address
+//                 .as_string(),
+//             "bcrt1q0xs7dau8af22rspp4klya4f7lhggcnqfun2y3a"
+//         );
+//
+//         assert_eq!(
+//             wallet
+//                 .get_internal_address(AddressIndex::New)
+//                 .unwrap()
+//                 .address
+//                 .as_string(),
+//             "bcrt1qpmz73cyx00r4a5dea469j40ax6d6kqyd67nnpj"
+//         );
+//
+//         assert_eq!(
+//             wallet
+//                 .get_internal_address(AddressIndex::New)
+//                 .unwrap()
+//                 .address
+//                 .as_string(),
+//             "bcrt1qaux734vuhykww9632v8cmdnk7z2mw5lsf74v6k"
+//         );
+//
+//         assert_eq!(
+//             wallet
+//                 .get_internal_address(AddressIndex::LastUnused)
+//                 .unwrap()
+//                 .address
+//                 .as_string(),
+//             "bcrt1qaux734vuhykww9632v8cmdnk7z2mw5lsf74v6k"
+//         );
+//     }
+//
+//     #[test]
+//     fn test_is_mine() {
+//         // is_mine should return true for addresses generated by the wallet
+//         let mnemonic: Mnemonic = Mnemonic::from_string("chaos fabric time speed sponsor all flat solution wisdom trophy crack object robot pave observe combine where aware bench orient secret primary cable detect".to_string()).unwrap();
+//         let secret_key: DescriptorSecretKey =
+//             DescriptorSecretKey::new(Network::Testnet, Arc::new(mnemonic), None);
+//         let descriptor: Descriptor = Descriptor::new_bip84(
+//             Arc::new(secret_key),
+//             KeychainKind::External,
+//             Network::Testnet,
+//         );
+//         let wallet: Wallet = Wallet::new(
+//             Arc::new(descriptor),
+//             None,
+//             Network::Testnet,
+//             DatabaseConfig::Memory,
+//         )
+//         .unwrap();
+//
+//         // let address = wallet.get_address(AddressIndex::New).unwrap();
+//         // let script: Arc<Script> = address.address.script_pubkey();
+//
+//         // let is_mine_1: bool = wallet.is_mine(script).unwrap();
+//         // assert!(is_mine_1);
+//
+//         // is_mine returns false when provided a script that is not in the wallet
+//         let other_wpkh = "wpkh(tprv8hwWMmPE4BVNxGdVt3HhEERZhondQvodUY7Ajyseyhudr4WabJqWKWLr4Wi2r26CDaNCQhhxEftEaNzz7dPGhWuKFU4VULesmhEfZYyBXdE/0/*)";
+//         let other_descriptor = Descriptor::new(other_wpkh.to_string(), Network::Testnet).unwrap();
+//
+//         let other_wallet = Wallet::new(
+//             Arc::new(other_descriptor),
+//             None,
+//             Network::Testnet,
+//             DatabaseConfig::Memory,
+//         )
+//         .unwrap();
+//
+//         let other_address = other_wallet.get_address(AddressIndex::New).unwrap();
+//         let other_script: Arc<Script> = other_address.address.script_pubkey();
+//         let is_mine_2: bool = wallet.is_mine(other_script).unwrap();
+//         assert_matches!(is_mine_2, false);
+//     }
+// }

bdk-ffi/tests/README.md

@@ -5,7 +5,7 @@ supported bindings languages.
 
 To skip integration tests and only run unit tests use `cargo test --lib`. 
 
-To run all tests including integration tests use `CLASSPATH=./tests/jna/jna-5.8.0.jar cargo test`. 
+To run all tests including integration tests use `CLASSPATH=./tests/jna/jna-5.14.0.jar cargo test`. 
 
 Before running integration tests you must install the following development tools:
 

bdk-ffi/tests/bindings/test.py

@@ -6,10 +6,5 @@ class TestBdk(unittest.TestCase):
     def test_some_enum(self):
         network = Network.TESTNET
 
-    def test_some_dict(self):
-        a = AddressInfo(index=42, address="testaddress")
-        self.assertEqual(42, a.index)
-        self.assertEqual("testaddress", a.address)
-
 if __name__=='__main__':
     unittest.main()

bdk-ffi/tests/test_generated_bindings.rs

@@ -1,8 +1,5 @@
-uniffi_macros::build_foreign_language_testcases!(
-    ["src/bdk.udl",],
-    [
-        "tests/bindings/test.kts",
-        "tests/bindings/test.swift",
-        "tests/bindings/test.py"
-    ]
+uniffi::build_foreign_language_testcases!(
+    "tests/bindings/test.kts",
+    "tests/bindings/test.swift",
+    "tests/bindings/test.py",
 );

bdk-ffi/uniffi-android.toml

@@ -0,0 +1,3 @@
+[bindings.kotlin]
+android = true
+android_cleaner = true

bdk-ffi/uniffi-bindgen.rs

@@ -0,0 +1,3 @@
+fn main() {
+    uniffi::uniffi_bindgen_main()
+}

bdk-jvm/README.md

@@ -1,5 +1,5 @@
-# bdk-android
-This project builds a .jar package for the JVM platform that provide Kotlin language bindings for the [`bdk`] library. The Kotlin language bindings are created by the `bdk-ffi` project which is included in the root of this repository.
+# bdk-jvm
+This project builds a .jar package for the JVM platform that provides Kotlin language bindings for the [`bdk`] library. The Kotlin language bindings are created by the `bdk-ffi` project which is included in the root of this repository.
 
 ## How to Use
 To use the Kotlin language bindings for [`bdk`] in your JVM project add the following to your gradle dependencies:
@@ -13,24 +13,6 @@ dependencies {
 }
 ```
 
-You may then import and use the `org.bitcoindevkit` library in your Kotlin code. For example:
-```kotlin
-import org.bitcoindevkit.*
-
-// ...
-
-val externalDescriptor = "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/0/*)"
-val internalDescriptor = "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/1/*)"
-
-val databaseConfig = DatabaseConfig.Memory
-
-val blockchainConfig = BlockchainConfig.Electrum(
-        ElectrumConfig("ssl://electrum.blockstream.info:60002", null, 5u, null, 10u)
-    )
-val wallet = Wallet(externalDescriptor, internalDescriptor, Network.TESTNET, databaseConfig, blockchainConfig)
-val newAddress = wallet.getAddress(AddressIndex.LAST_UNUSED)
-```
-
 ### Snapshot releases
 To use a snapshot release, specify the snapshot repository url in the `repositories` block and use the snapshot version in the `dependencies` block:
 ```kotlin
@@ -38,37 +20,44 @@ repositories {
     maven("https://s01.oss.sonatype.org/content/repositories/snapshots/")
 }
 
-dependencies {
-  implementation("org.bitcoindevkit:bdk-jvm:<version-SNAPSHOT>")
+dependencies { 
+    implementation("org.bitcoindevkit:bdk-jvm:<version-SNAPSHOT>")
 }
 ```
 
-
 ## Example Projects
 * [Tatooine Faucet](https://github.com/thunderbiscuit/tatooine)
 
 ## How to build
-_Note that Kotlin version `1.6.10` or later is required to build the library._
-
-1. Clone this repository.
+_Note that Kotlin version `1.9.23` or later is required to build the library._
+1. Install JDK 17. For example, with SDKMAN!:
+```shell
+curl -s "https://get.sdkman.io" | bash
+source "$HOME/.sdkman/bin/sdkman-init.sh"
+sdk install java 17.0.2-tem
+```
+2. Install Rust (note that we are currently building using Rust 1.77.1):
+```shell
+curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
+rustup default 1.77.1
+```
+3. Clone this repository.
 ```shell
 git clone https://github.com/bitcoindevkit/bdk-ffi
 ```
-2. Follow the "General" bdk-ffi ["Getting Started (Developer)"] instructions.
-3. If building on macOS install required intel and m1 jvm targets
+4. If building on macOS install required intel and m1 jvm targets
 ```sh
 rustup target add x86_64-apple-darwin aarch64-apple-darwin
 ```
-4. Build kotlin bindings
- ```sh
- # build JVM library
- ./gradlew buildJvmLib
- ```
+5. Build kotlin bindings
+```sh
+./gradlew buildJvmLib
+```
 
 ## How to publish to your local Maven repo
 ```shell
 cd bdk-jvm
-./gradlew publishToMavenLocal --exclude-task signMavenPublication
+./gradlew publishToMavenLocal -P localBuild
 ```
 
 Note that the commands assume you don't need the local libraries to be signed. If you do wish to sign them, simply set your `~/.gradle/gradle.properties` signing key values like so:
@@ -77,10 +66,25 @@ signing.gnupg.keyName=<YOUR_GNUPG_ID>
 signing.gnupg.passphrase=<YOUR_GNUPG_PASSPHRASE>
 ```
 
-and use the `publishToMavenLocal` task without excluding the signing task:
+and use the `publishToMavenLocal` task without the `localBuild` flag:
 ```shell
 ./gradlew publishToMavenLocal
 ```
 
+## Known issues
+## JNA dependency
+Depending on the JVM version you use, you might not have the JNA dependency on your classpath. The exception thrown will be 
+```shell
+class file for com.sun.jna.Pointer not found
+```
+
+The solution is to add JNA as a dependency like so:
+```kotlin
+dependencies {
+    // ...
+    implementation("net.java.dev.jna:jna:5.12.1")
+}
+```
+
 [`bdk`]: https://github.com/bitcoindevkit/bdk
 [`bdk-ffi`]: https://github.com/bitcoindevkit/bdk-ffi

bdk-jvm/build.gradle.kts

@@ -1,4 +1,9 @@
 plugins {
+    id("org.jetbrains.kotlin.jvm").version("1.9.23").apply(false)
+    id("org.gradle.java-library")
+    id("org.gradle.maven-publish")
+    id("org.gradle.signing")
+    id("org.bitcoindevkit.plugins.generate-jvm-bindings").apply(false)
     id("io.github.gradle-nexus.publish-plugin") version "1.1.0"
 }
 

bdk-jvm/gradle.properties

@@ -1,4 +1,4 @@
 org.gradle.jvmargs=-Xmx1536m
 android.enableJetifier=true
 kotlin.code.style=official
-libraryVersion=0.12.0-SNAPSHOT
+libraryVersion=1.0.0-alpha.10-SNAPSHOT

bdk-jvm/gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-all.zip
+networkTimeout=10000
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

bdk-jvm/gradlew

@@ -55,7 +55,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -80,13 +80,11 @@ do
     esac
 done
 
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
+# This is normally unused
+# shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -133,22 +131,29 @@ location of your Java installation."
     fi
 else
     JAVACMD=java
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
+    fi
 fi
 
 # Increase the maximum file descriptors if we can.
 if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
     case $MAX_FD in  #(
       '' | soft) :;; #(
       *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -193,6 +198,10 @@ if "$cygwin" || "$msys" ; then
     done
 fi
 
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
 # Collect all arguments for the java command;
 #   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
 #     shell script including quotes and variable substitutions, so put them in
@@ -205,6 +214,12 @@ set -- \
         org.gradle.wrapper.GradleWrapperMain \
         "$@"
 
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
 # Use "xargs" to parse quoted args.
 #
 # With -n1 it outputs one arg per line, with the quotes and backslashes removed.

bdk-jvm/gradlew.bat

@@ -14,7 +14,7 @@
 @rem limitations under the License.
 @rem
 
-@if "%DEBUG%" == "" @echo off
+@if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
 @rem  Gradle startup script for Windows
@@ -25,7 +25,8 @@
 if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
@@ -40,7 +41,7 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
+if %ERRORLEVEL% equ 0 goto execute
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -75,13 +76,15 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 :end
 @rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+if %ERRORLEVEL% equ 0 goto mainEnd
 
 :fail
 rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
 rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
 
 :mainEnd
 if "%OS%"=="Windows_NT" endlocal

bdk-jvm/justfile

@@ -0,0 +1,23 @@
+default:
+  just --list
+
+build:
+  ./gradlew buildJvmLib
+
+clean:
+  rm -rf ../bdk-ffi/target/
+  rm -rf ./build/
+  rm -rf ./lib/build/
+  rm -rf ./plugins/build/
+
+publish-local:
+  ./gradlew publishToMavenLocal -P localBuild
+
+test:
+  ./gradlew test
+
+test-offline:
+  ./gradlew test -P excludeConnectedTests
+
+test-specific TEST:
+  ./gradlew test --tests {{TEST}}

bdk-jvm/lib/build.gradle.kts

@@ -1,49 +1,66 @@
 import org.gradle.api.tasks.testing.logging.TestExceptionFormat.*
 import org.gradle.api.tasks.testing.logging.TestLogEvent.*
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 // library version is defined in gradle.properties
 val libraryVersion: String by project
 
 plugins {
-    id("org.jetbrains.kotlin.jvm") version "1.6.10"
-    id("java-library")
-    id("maven-publish")
-    id("signing")
+    id("org.jetbrains.kotlin.jvm")
+    id("org.gradle.java-library")
+    id("org.gradle.maven-publish")
+    id("org.gradle.signing")
 
     // Custom plugin to generate the native libs and bindings file
     id("org.bitcoindevkit.plugins.generate-jvm-bindings")
 }
 
-repositories {
-    mavenCentral()
-}
-
 java {
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
     withSourcesJar()
     withJavadocJar()
 }
 
-tasks.withType<Test> {
-    useJUnitPlatform()
+// This block ensures that the tests that require access to a blockchain are not
+// run if the -P excludeConnectedTests flag is passed to gradle.
+// This ensures our CI runs are not fickle by not requiring access to testnet.
+// This is a workaround until we have a proper regtest setup for the CI.
+// Note that the command in the CI is ./gradlew test -P excludeConnectedTests
+tasks.test {
+    if (project.hasProperty("excludeConnectedTests")) {
+        exclude("**/LiveWalletTest.class")
+        exclude("**/LiveTxBuilderTest.class")
+    }
+}
 
+testing {
+    suites {
+        val test by getting(JvmTestSuite::class) {
+            useKotlinTest("1.9.23")
+        }
+    }
+}
+
+tasks.withType<Test> {
     testLogging {
         events(PASSED, SKIPPED, FAILED, STANDARD_OUT, STANDARD_ERROR)
         exceptionFormat = FULL
         showExceptions = true
-        showCauses = true
         showStackTraces = true
+        showCauses = true
     }
 }
 
 dependencies {
     implementation(platform("org.jetbrains.kotlin:kotlin-bom"))
     implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk7")
-    implementation("net.java.dev.jna:jna:5.8.0")
+    implementation("net.java.dev.jna:jna:5.14.0")
     api("org.slf4j:slf4j-api:1.7.30")
-    testImplementation("junit:junit:4.13.2")
-    testRuntimeOnly("org.junit.vintage:junit-vintage-engine:5.8.2")
+
+    // testImplementation("org.junit.jupiter:junit-jupiter-api:5.10.1")
+    // testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.10.1")
+    // testRuntimeOnly("org.junit.vintage:junit-vintage-engine:5.8.2")
     testImplementation("ch.qos.logback:logback-classic:1.2.3")
     testImplementation("ch.qos.logback:logback-core:1.2.3")
 }
@@ -73,14 +90,9 @@ afterEvaluate {
                     }
                     developers {
                         developer {
-                            id.set("notmandatory")
-                            name.set("Steve Myers")
-                            email.set("notmandatory@noreply.github.org")
-                        }
-                        developer {
-                            id.set("artfuldev")
-                            name.set("Sudarsan Balaji")
-                            email.set("sudarsan.balaji@artfuldev.com")
+                            id.set("bdkdevelopers")
+                            name.set("Bitcoin Dev Kit Developers")
+                            email.set("dev@bitcoindevkit.org")
                         }
                     }
                     scm {
@@ -95,9 +107,23 @@ afterEvaluate {
 }
 
 signing {
+    if (project.hasProperty("localBuild")) {
+        isRequired = false
+    }
+
     val signingKeyId: String? by project
     val signingKey: String? by project
     val signingPassword: String? by project
     useInMemoryPgpKeys(signingKeyId, signingKey, signingPassword)
     sign(publishing.publications)
 }
+
+// This task dependency ensures that we build the bindings
+// binaries before running the tests
+tasks.withType<KotlinCompile> {
+    dependsOn("buildJvmLib")
+
+    kotlinOptions {
+        jvmTarget = "11"
+    }
+}

bdk-jvm/lib/src/test/kotlin/org/bitcoindevkit/JvmLibTest.kt

@@ -1,73 +0,0 @@
-package org.bitcoindevkit
-
-import org.junit.Assert.*
-import org.junit.Test
-import org.slf4j.Logger
-import org.slf4j.LoggerFactory
-import java.io.File
-import java.nio.file.Files
-
-/**
- * Library test, which will execute on linux host.
- */
-class JvmLibTest {
-
-    private fun getTestDataDir(): String {
-        return Files.createTempDirectory("bdk-test").toString()
-    }
-
-    private fun cleanupTestDataDir(testDataDir: String) {
-        File(testDataDir).deleteRecursively()
-    }
-
-    class LogProgress : Progress {
-        private val log: Logger = LoggerFactory.getLogger(JvmLibTest::class.java)
-
-        override fun update(progress: Float, message: String?) {
-            log.debug("Syncing...")
-        }
-    }
-
-    private val descriptor =
-        "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/0/*)"
-
-    private val databaseConfig = DatabaseConfig.Memory
-
-    private val blockchainConfig = BlockchainConfig.Electrum(
-        ElectrumConfig(
-            "ssl://electrum.blockstream.info:60002",
-            null,
-            5u,
-            null,
-            100u
-        )
-    )
-
-    @Test
-    fun memoryWalletNewAddress() {
-        val wallet = Wallet(descriptor, null, Network.TESTNET, databaseConfig)
-        val address = wallet.getAddress(AddressIndex.NEW).address
-        assertEquals("tb1qzg4mckdh50nwdm9hkzq06528rsu73hjxxzem3e", address)
-    }
-
-    @Test
-    fun memoryWalletSyncGetBalance() {
-        val wallet = Wallet(descriptor, null, Network.TESTNET, databaseConfig)
-        val blockchain = Blockchain(blockchainConfig)
-        wallet.sync(blockchain, LogProgress())
-        val balance: Balance = wallet.getBalance()
-        assertTrue(balance.total > 0u)
-    }
-
-    @Test
-    fun sqliteWalletSyncGetBalance() {
-        val testDataDir = getTestDataDir() + "/bdk-wallet.sqlite"
-        val databaseConfig = DatabaseConfig.Sqlite(SqliteDbConfiguration(testDataDir))
-        val wallet = Wallet(descriptor, null, Network.TESTNET, databaseConfig)
-        val blockchain = Blockchain(blockchainConfig)
-        wallet.sync(blockchain, LogProgress())
-        val balance: Balance = wallet.getBalance()
-        assertTrue(balance.total > 0u)
-        cleanupTestDataDir(testDataDir)
-    }
-}

bdk-jvm/lib/src/test/kotlin/org/bitcoindevkit/LiveTxBuilderTest.kt

@@ -0,0 +1,80 @@
+package org.bitcoindevkit
+
+import java.io.File
+import kotlin.test.AfterTest
+import kotlin.test.Test
+import kotlin.test.assertTrue
+
+private const val SIGNET_ESPLORA_URL = "http://signet.bitcoindevkit.net"
+private const val TESTNET_ESPLORA_URL = "https://esplora.testnet.kuutamo.cloud"
+
+class LiveTxBuilderTest {
+    private val persistenceFilePath = run {
+        val currentDirectory = System.getProperty("user.dir")
+        "$currentDirectory/bdk_persistence.db"
+    }
+
+    @AfterTest
+    fun cleanup() {
+        val file = File(persistenceFilePath)
+        if (file.exists()) {
+            file.delete()
+        }
+    }
+
+    @Test
+    fun testTxBuilder() {
+        val descriptor = Descriptor("wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", Network.TESTNET)
+        val wallet = Wallet(descriptor, null, persistenceFilePath, Network.SIGNET)
+        val esploraClient = EsploraClient(SIGNET_ESPLORA_URL)
+        val fullScanRequest: FullScanRequest = wallet.startFullScan()
+        val update = esploraClient.fullScan(fullScanRequest, 10uL, 1uL)
+        wallet.applyUpdate(update)
+        wallet.commit()
+        println("Balance: ${wallet.getBalance().total}")
+
+        assert(wallet.getBalance().total > 0uL)
+
+        val recipient: Address = Address("tb1qrnfslnrve9uncz9pzpvf83k3ukz22ljgees989", Network.SIGNET)
+        val psbt: Psbt = TxBuilder()
+            .addRecipient(recipient.scriptPubkey(), 4200uL)
+            .feeRate(FeeRate.fromSatPerVb(2uL))
+            .finish(wallet)
+
+        println(psbt.serialize())
+
+        assertTrue(psbt.serialize().startsWith("cHNi"), "PSBT should start with 'cHNi'")
+    }
+
+    @Test
+    fun complexTxBuilder() {
+        val externalDescriptor = Descriptor("wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", Network.TESTNET)
+        val changeDescriptor = Descriptor("wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)", Network.TESTNET)
+        val wallet = Wallet(externalDescriptor, changeDescriptor, persistenceFilePath, Network.SIGNET)
+        val esploraClient = EsploraClient(SIGNET_ESPLORA_URL)
+        val fullScanRequest: FullScanRequest = wallet.startFullScan()
+        val update = esploraClient.fullScan(fullScanRequest, 10uL, 1uL)
+        wallet.applyUpdate(update)
+        wallet.commit()
+        println("Balance: ${wallet.getBalance().total}")
+
+        assert(wallet.getBalance().total > 0uL)
+
+        val recipient1: Address = Address("tb1qrnfslnrve9uncz9pzpvf83k3ukz22ljgees989", Network.SIGNET)
+        val recipient2: Address = Address("tb1qw2c3lxufxqe2x9s4rdzh65tpf4d7fssjgh8nv6", Network.SIGNET)
+        val allRecipients: List<ScriptAmount> = listOf(
+            ScriptAmount(recipient1.scriptPubkey(), 4200uL),
+            ScriptAmount(recipient2.scriptPubkey(), 4200uL),
+        )
+
+        val psbt: Psbt = TxBuilder()
+            .setRecipients(allRecipients)
+            .feeRate(FeeRate.fromSatPerVb(4uL))
+            .changePolicy(ChangeSpendPolicy.CHANGE_FORBIDDEN)
+            .enableRbf()
+            .finish(wallet)
+
+        wallet.sign(psbt)
+        assertTrue(psbt.serialize().startsWith("cHNi"), "PSBT should start with 'cHNi'")
+    }
+}

bdk-jvm/lib/src/test/kotlin/org/bitcoindevkit/LiveWalletTest.kt

@@ -0,0 +1,88 @@
+package org.bitcoindevkit
+
+import java.io.File
+import kotlin.test.AfterTest
+import kotlin.test.Test
+import kotlin.test.assertTrue
+
+private const val SIGNET_ESPLORA_URL = "http://signet.bitcoindevkit.net"
+private const val TESTNET_ESPLORA_URL = "https://esplora.testnet.kuutamo.cloud"
+
+class LiveWalletTest {
+    private val persistenceFilePath = run {
+        val currentDirectory = System.getProperty("user.dir")
+        "$currentDirectory/bdk_persistence.db"
+    }
+
+    @AfterTest
+    fun cleanup() {
+        val file = File(persistenceFilePath)
+        if (file.exists()) {
+            file.delete()
+        }
+    }
+
+    @Test
+    fun testSyncedBalance() {
+        val descriptor: Descriptor = Descriptor("wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", Network.SIGNET)
+        val wallet: Wallet = Wallet(descriptor, null, persistenceFilePath, Network.SIGNET)
+        val esploraClient: EsploraClient = EsploraClient(SIGNET_ESPLORA_URL)
+        val fullScanRequest: FullScanRequest = wallet.startFullScan()
+        val update = esploraClient.fullScan(fullScanRequest, 10uL, 1uL)
+        wallet.applyUpdate(update)
+        wallet.commit()
+        println("Balance: ${wallet.getBalance().total}")
+
+        assert(wallet.getBalance().total > 0uL)
+
+        println("Transactions count: ${wallet.transactions().count()}")
+        val transactions = wallet.transactions().take(3)
+        for (tx in transactions) {
+            val sentAndReceived = wallet.sentAndReceived(tx.transaction)
+            println("Transaction: ${tx.transaction.txid()}")
+            println("Sent ${sentAndReceived.sent}")
+            println("Received ${sentAndReceived.received}")
+        }
+    }
+
+    @Test
+    fun testBroadcastTransaction() {
+        val descriptor = Descriptor("wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", Network.SIGNET)
+        val wallet: Wallet = Wallet(descriptor, null, persistenceFilePath, Network.SIGNET)
+        val esploraClient = EsploraClient(SIGNET_ESPLORA_URL)
+        val fullScanRequest: FullScanRequest = wallet.startFullScan()
+        val update = esploraClient.fullScan(fullScanRequest, 10uL, 1uL)
+        wallet.applyUpdate(update)
+        wallet.commit()
+        println("Balance: ${wallet.getBalance().total}")
+        println("New address: ${wallet.revealNextAddress(KeychainKind.EXTERNAL).address.asString()}")
+
+        assert(wallet.getBalance().total > 0uL) {
+            "Wallet balance must be greater than 0! Please send funds to ${wallet.revealNextAddress(KeychainKind.EXTERNAL).address.asString()} and try again."
+        }
+
+        val recipient: Address = Address("tb1qrnfslnrve9uncz9pzpvf83k3ukz22ljgees989", Network.SIGNET)
+
+        val psbt: Psbt = TxBuilder()
+            .addRecipient(recipient.scriptPubkey(), 4200uL)
+            .feeRate(FeeRate.fromSatPerVb(2uL))
+            .finish(wallet)
+
+        println(psbt.serialize())
+        assertTrue(psbt.serialize().startsWith("cHNi"), "PSBT should start with 'cHNi'")
+
+        val walletDidSign = wallet.sign(psbt)
+        assertTrue(walletDidSign)
+
+        val tx: Transaction = psbt.extractTx()
+        println("Txid is: ${tx.txid()}")
+
+        val txFee: ULong = wallet.calculateFee(tx)
+        println("Tx fee is: ${txFee}")
+
+        val feeRate: FeeRate = wallet.calculateFeeRate(tx)
+        println("Tx fee rate is: ${feeRate.toSatPerVbCeil()} sat/vB")
+
+        esploraClient.broadcast(tx)
+    }
+}

bdk-jvm/lib/src/test/kotlin/org/bitcoindevkit/OfflineDescriptorTest.kt

@@ -0,0 +1,18 @@
+package org.bitcoindevkit
+
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class OfflineDescriptorTest {
+    @Test
+    fun testDescriptorBip86() {
+        val mnemonic: Mnemonic = Mnemonic.fromString("space echo position wrist orient erupt relief museum myself grain wisdom tumble")
+        val descriptorSecretKey: DescriptorSecretKey = DescriptorSecretKey(Network.TESTNET, mnemonic, null)
+        val descriptor: Descriptor = Descriptor.newBip86(descriptorSecretKey, KeychainKind.EXTERNAL, Network.TESTNET)
+
+        assertEquals(
+            expected = "tr([be1eec8f/86'/1'/0']tpubDCTtszwSxPx3tATqDrsSyqScPNnUChwQAVAkanuDUCJQESGBbkt68nXXKRDifYSDbeMa2Xg2euKbXaU3YphvGWftDE7ozRKPriT6vAo3xsc/0/*)#m7puekcx",
+            actual = descriptor.asString()
+        )
+    }
+}

bdk-jvm/lib/src/test/kotlin/org/bitcoindevkit/OfflineWalletTest.kt

@@ -0,0 +1,76 @@
+package org.bitcoindevkit
+
+import java.io.File
+import kotlin.test.AfterTest
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertTrue
+import kotlin.test.assertFalse
+
+class OfflineWalletTest {
+    private val persistenceFilePath = run {
+        val currentDirectory = System.getProperty("user.dir")
+        "$currentDirectory/bdk_persistence.db"
+    }
+
+    @AfterTest
+    fun cleanup() {
+        val file = File(persistenceFilePath)
+        if (file.exists()) {
+            file.delete()
+        }
+    }
+
+    @Test
+    fun testDescriptorBip86() {
+        val mnemonic: Mnemonic = Mnemonic(WordCount.WORDS12)
+        val descriptorSecretKey: DescriptorSecretKey = DescriptorSecretKey(Network.TESTNET, mnemonic, null)
+        val descriptor: Descriptor = Descriptor.newBip86(descriptorSecretKey, KeychainKind.EXTERNAL, Network.TESTNET)
+
+        assertTrue(descriptor.asString().startsWith("tr"), "Bip86 Descriptor does not start with 'tr'")
+    }
+
+   @Test
+    fun testNewAddress() {
+        val descriptor: Descriptor = Descriptor(
+            "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/0/*)",
+            Network.TESTNET
+        )
+        val wallet: Wallet = Wallet(
+            descriptor,
+            null,
+            persistenceFilePath,
+            Network.TESTNET
+        )
+        val addressInfo: AddressInfo = wallet.revealNextAddress(KeychainKind.EXTERNAL)
+
+        assertTrue(addressInfo.address.isValidForNetwork(Network.TESTNET), "Address is not valid for testnet network")
+        assertTrue(addressInfo.address.isValidForNetwork(Network.SIGNET), "Address is not valid for signet network")
+        assertFalse(addressInfo.address.isValidForNetwork(Network.REGTEST), "Address is valid for regtest network, but it shouldn't be")
+        assertFalse(addressInfo.address.isValidForNetwork(Network.BITCOIN), "Address is valid for bitcoin network, but it shouldn't be")
+
+        assertEquals(
+            expected = "tb1qzg4mckdh50nwdm9hkzq06528rsu73hjxxzem3e",
+            actual = addressInfo.address.asString()
+        )
+    }
+
+    @Test
+    fun testBalance() {
+        val descriptor: Descriptor = Descriptor(
+            "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/0/*)",
+            Network.TESTNET
+        )
+        val wallet: Wallet = Wallet(
+            descriptor,
+            null,
+            persistenceFilePath,
+            Network.TESTNET
+        )
+
+        assertEquals(
+            expected = 0uL,
+            actual = wallet.getBalance().total
+        )
+    }
+}

bdk-jvm/plugins/src/main/kotlin/org/bitcoindevkit/plugins/Enums.kt

@@ -4,11 +4,13 @@ package org.bitcoindevkit.plugins
 val operatingSystem: OS = when {
     System.getProperty("os.name").contains("mac", ignoreCase = true) -> OS.MAC
     System.getProperty("os.name").contains("linux", ignoreCase = true) -> OS.LINUX
+    System.getProperty("os.name").contains("windows", ignoreCase = true) -> OS.WINDOWS
     else -> OS.OTHER
 }
 
 enum class OS {
     MAC,
     LINUX,
+    WINDOWS,
     OTHER,
 }

bdk-jvm/plugins/src/main/kotlin/org/bitcoindevkit/plugins/UniFfiJvmPlugin.kt

@@ -8,6 +8,8 @@ import org.gradle.kotlin.dsl.getValue
 import org.gradle.kotlin.dsl.provideDelegate
 import org.gradle.kotlin.dsl.register
 
+// TODO 18: Migrate hard coded strings to constants all in the same location so they're at least easy
+//          to find and reason about.
 internal class UniFfiJvmPlugin : Plugin<Project> {
     override fun apply(target: Project): Unit = target.run {
 
@@ -27,13 +29,20 @@ internal class UniFfiJvmPlugin : Plugin<Project> {
                     val cargoArgs: List<String> = listOf("build", "--profile", "release-smaller", "--target", "aarch64-apple-darwin")
                     args(cargoArgs)
                 }
-            } else if(operatingSystem == OS.LINUX) {
+            } else if (operatingSystem == OS.LINUX) {
                 exec {
                     workingDir("${project.projectDir}/../../bdk-ffi")
                     executable("cargo")
                     val cargoArgs: List<String> = listOf("build", "--profile", "release-smaller", "--target", "x86_64-unknown-linux-gnu")
                     args(cargoArgs)
                 }
+            } else if (operatingSystem == OS.WINDOWS) {
+                exec {
+                    workingDir("${project.projectDir}/../../bdk-ffi")
+                    executable("cargo")
+                    val cargoArgs: List<String> = listOf("build", "--profile", "release-smaller", "--target", "x86_64-pc-windows-msvc")
+                    args(cargoArgs)
+                }
             }
         }
 
@@ -70,13 +79,25 @@ internal class UniFfiJvmPlugin : Plugin<Project> {
                         ext = "so"
                     )
                 )
+            } else if (operatingSystem == OS.WINDOWS) {
+                libsToCopy.add(
+                    CopyMetadata(
+                        targetDir = "x86_64-pc-windows-msvc",
+                        resDir = "win32-x86-64",
+                        ext = "dll"
+                    )
+                )
+            }
+            val libName = when (operatingSystem) {
+                OS.WINDOWS -> "bdkffi"
+                else       -> "libbdkffi"
             }
 
             libsToCopy.forEach {
                 doFirst {
                     copy {
                         with(it) {
-                            from("${project.projectDir}/../../target/${this.targetDir}/release-smaller/libbdkffi.${this.ext}")
+                            from("${project.projectDir}/../../bdk-ffi/target/${this.targetDir}/release-smaller/${libName}.${this.ext}")
                             into("${project.projectDir}/../../bdk-jvm/lib/src/main/resources/${this.resDir}/")
                         }
                     }
@@ -89,18 +110,24 @@ internal class UniFfiJvmPlugin : Plugin<Project> {
 
             dependsOn(moveNativeJvmLibs)
 
-            workingDir("${project.projectDir}/../../bdk-ffi")
+            // TODO 2: Is the Windows name the correct one?
+            // TODO 3: This will not work on mac Intel (x86_64 architecture)
+            val libraryPath = when (operatingSystem) {
+                OS.LINUX   -> "./target/x86_64-unknown-linux-gnu/release-smaller/libbdkffi.so"
+                OS.MAC     -> "./target/aarch64-apple-darwin/release-smaller/libbdkffi.dylib"
+                OS.WINDOWS -> "./target/x86_64-pc-windows-msvc/release-smaller/bdkffi.dll"
+                else       -> throw Exception("Unsupported OS")
+            }
+
+            workingDir("${project.projectDir}/../../bdk-ffi/")
+            val cargoArgs: List<String> = listOf("run", "--bin", "uniffi-bindgen", "generate", "--library", libraryPath, "--language", "kotlin", "--out-dir", "../bdk-jvm/lib/src/main/kotlin/", "--no-format")
+
+            // The code above was for the migration to uniffi 0.24.3 using the --library flag
+            // The code below works with uniffi 0.23.0
+            // workingDir("${project.projectDir}/../../bdk-ffi/")
+            // val cargoArgs: List<String> = listOf("run", "--bin", "uniffi-bindgen", "generate", "src/bdk.udl", "--language", "kotlin", "--out-dir", "../bdk-jvm/lib/src/main/kotlin", "--no-format")
             executable("cargo")
-            args(
-                "run",
-                "--package",
-                "bdk-ffi-bindgen",
-                "--",
-                "--language",
-                "kotlin",
-                "--out-dir",
-                "../bdk-jvm/lib/src/main/kotlin"
-            )
+            args(cargoArgs)
 
             doLast {
                 println("JVM bindings file successfully created")

bdk-jvm/settings.gradle.kts

@@ -2,3 +2,15 @@ rootProject.name = "bdk-jvm"
 
 include(":lib")
 includeBuild("plugins")
+
+pluginManagement {
+    repositories {
+        gradlePluginPortal()
+    }
+}
+
+dependencyResolutionManagement {
+    repositories {
+        mavenCentral()
+    }
+}

bdk-python/LICENSE

@@ -1,14 +0,0 @@
-This software is licensed under [Apache 2.0](LICENSE-APACHE) or
-[MIT](LICENSE-MIT), at your option.
-
-Some files retain their own copyright notice, however, for full authorship
-information, see version control history.
-
-Except as otherwise noted in individual files, all files in this repository are
-licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-http://www.apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
-http://opensource.org/licenses/MIT>, at your option.
-
-You may not use, copy, modify, merge, publish, distribute, sublicense, and/or
-sell copies of this software or any files in this repository except in
-accordance with one or both of these licenses.

bdk-python/LICENSE-APACHE

@@ -1,201 +0,0 @@
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
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-
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-      and distribution as defined by Sections 1 through 9 of this document.
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-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
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-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
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-
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-   limitations under the License.

bdk-python/LICENSE-MIT

@@ -1,17 +0,0 @@
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software is furnished to do so,
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

bdk-python/MANIFEST.in

@@ -0,0 +1,3 @@
+include ./src/bdkpython/libbdkffi.dylib
+include ./src/bdkpython/libbdkffi.so
+include ./src/bdkpython/bdkffi.dll

bdk-python/README.md

@@ -11,11 +11,11 @@ pip install bdkpython
 
 ## Run the tests
 ```shell
-pip3 install --requirement requirements.txt
-bash ./generate.sh
-python3 setup.py --verbose bdist_wheel
-pip3 install ./dist/bdkpython-<yourversion>-py3-none-any.whl
-python -m unittest --verbose tests/test_bdk.py
+pip install --requirement requirements.txt
+bash ./scripts/generate-linux.sh # here you should run the script appropriate for your platform
+python setup.py bdist_wheel --verbose
+pip install ./dist/bdkpython-<yourversion>.whl --force-reinstall
+python -m unittest --verbose
 ```
 
 ## Build the package
@@ -23,26 +23,14 @@ python -m unittest --verbose tests/test_bdk.py
 # Install dependencies
 pip install --requirement requirements.txt
 
-# Generate the bindings first
-bash generate.sh
+# Generate the bindings (use the script appropriate for your platform)
+bash ./scripts/generate-linux.sh
 
 # Build the wheel
-python3 setup.py --verbose bdist_wheel
-```
-
-## Run tox to build and test locally
-```shell
-# install dev requirements
-pip install --requirement requirements-dev.txt
-
-# build bindings glue code (located at .bdk-python/src/bdkpython/bdk.py)
-source ./generate.sh
-
-# build and test
-tox -vv
+python setup.py --verbose bdist_wheel
 ```
 
 ## Install locally
 ```shell
-pip install ./dist/bdkpython-<yourversion>-py3-none-any.whl
+pip install ./dist/bdkpython-<yourversion>.whl
 ```

bdk-python/generate.sh

@@ -1,11 +0,0 @@
-#!/usr/bin/env bash
-
-set -euo pipefail
-
-SCRIPT_DIR=$(dirname "$(realpath $0)")
-PY_SRC="${SCRIPT_DIR}/src/bdkpython/"
-
-echo "Generating bdk.py..."
-# GENERATE_PYTHON_BINDINGS_OUT="$PY_SRC" GENERATE_PYTHON_BINDINGS_FIXUP_LIB_PATH=bdkffi cargo run --manifest-path ./bdk-ffi/Cargo.toml --release --bin generate --features generate-python
-# BDKFFI_BINDGEN_PYTHON_FIXUP_PATH=bdkffi cargo run --manifest-path ./bdk-ffi/Cargo.toml --package bdk-ffi-bindgen -- --language python --udl-file ./bdk-ffi/src/bdk.udl --out-dir ./src/bdkpython/
-BDKFFI_BINDGEN_OUTPUT_DIR="$PY_SRC" BDKFFI_BINDGEN_PYTHON_FIXUP_PATH=bdkffi cargo run --manifest-path ../bdk-ffi/Cargo.toml --package bdk-ffi-bindgen -- --language python --udl-file ../bdk-ffi/src/bdk.udl

bdk-python/justfile

@@ -0,0 +1,14 @@
+default:
+  just --list
+
+build-local-mac:
+  bash ./scripts/generate-macos-arm64.sh && python3 setup.py bdist_wheel --verbose
+
+clean:
+  rm -rf ../bdk-ffi/target/
+  rm -rf ./bdkpython.egg-info/
+  rm -rf ./build/
+  rm -rf ./dist/
+
+test:
+  python3 -m unittest --verbose

bdk-python/requirements.txt

@@ -1,3 +1,4 @@
 semantic-version==2.9.0
-setuptools-rust==1.1.2
 typing_extensions==4.0.1
+setuptools==67.4.0
+wheel==0.38.4

bdk-python/scripts/generate-linux.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+${PYBIN}/python --version
+${PYBIN}/pip install -r requirements.txt
+
+cd ../bdk-ffi/
+rustup default 1.77.1
+
+echo "Generating native binaries..."
+cargo build --profile release-smaller
+
+echo "Generating bdk.py..."
+cargo run --bin uniffi-bindgen generate --library ./target/release-smaller/libbdkffi.so --language python --out-dir ../bdk-python/src/bdkpython/ --no-format
+
+echo "Copying linux libbdkffi.so..."
+cp ./target/release-smaller/libbdkffi.so ../bdk-python/src/bdkpython/libbdkffi.so
+
+echo "All done!"

bdk-python/scripts/generate-macos-arm64.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+python3 --version
+pip install -r requirements.txt
+
+cd ../bdk-ffi/
+rustup default 1.77.1
+rustup target add aarch64-apple-darwin
+
+echo "Generating native binaries..."
+cargo build --profile release-smaller --target aarch64-apple-darwin
+
+echo "Generating bdk.py..."
+cargo run --bin uniffi-bindgen generate --library ./target/aarch64-apple-darwin/release-smaller/libbdkffi.dylib --language python --out-dir ../bdk-python/src/bdkpython/ --no-format
+
+echo "Copying libraries libbdkffi.dylib..."
+cp ./target/aarch64-apple-darwin/release-smaller/libbdkffi.dylib ../bdk-python/src/bdkpython/libbdkffi.dylib
+
+echo "All done!"

bdk-python/scripts/generate-macos-x86_64.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+python3 --version
+pip install -r requirements.txt
+
+cd ../bdk-ffi/
+rustup default 1.77.1
+rustup target add x86_64-apple-darwin
+
+echo "Generating native binaries..."
+cargo build --profile release-smaller --target x86_64-apple-darwin
+
+echo "Generating bdk.py..."
+cargo run --bin uniffi-bindgen generate --library ./target/x86_64-apple-darwin/release-smaller/libbdkffi.dylib --language python --out-dir ../bdk-python/src/bdkpython/ --no-format
+
+echo "Copying libraries libbdkffi.dylib..."
+cp ./target/x86_64-apple-darwin/release-smaller/libbdkffi.dylib ../bdk-python/src/bdkpython/libbdkffi.dylib
+
+echo "All done!"