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Implement redesigned versions of EsploraExt and EsploraAsyncExt

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All associated examples are also updated.
This commit is contained in:
志宇
2023-05-18 14:04:48 +08:00
parent 2952341e52
commit 5860704b2d
9 changed files with 704 additions and 177 deletions
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163
example-crates/wallet_esplora_async/src/main.rs
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@@ -1,100 +1,97 @@
// use std::{io::Write, str::FromStr};
use std::{io::Write, str::FromStr};
// use bdk::{
// bitcoin::{Address, Network},
// wallet::AddressIndex,
// SignOptions, Wallet,
// };
// use bdk_esplora::{esplora_client, EsploraAsyncExt};
// use bdk_file_store::KeychainStore;
use bdk::{
bitcoin::{Address, Network},
wallet::AddressIndex,
SignOptions, Wallet,
};
use bdk_esplora::{esplora_client, v2::EsploraAsyncExt};
use bdk_file_store::Store;
// const SEND_AMOUNT: u64 = 5000;
// const STOP_GAP: usize = 50;
// const PARALLEL_REQUESTS: usize = 5;
const DB_MAGIC: &str = "bdk_wallet_esplora_async_example";
const SEND_AMOUNT: u64 = 5000;
const STOP_GAP: usize = 50;
const PARALLEL_REQUESTS: usize = 5;
#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
todo!("update this example!");
// let db_path = std::env::temp_dir().join("bdk-esplora-example");
// let db = KeychainStore::new_from_path(db_path)?;
// let external_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/0'/0'/0/*)";
// let internal_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/0'/0'/1/*)";
let db_path = std::env::temp_dir().join("bdk-esplora-async-example");
let db = Store::<bdk::wallet::ChangeSet>::new_from_path(DB_MAGIC.as_bytes(), db_path)?;
let external_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/0'/0'/0/*)";
let internal_descriptor = "wpkh(tprv8ZgxMBicQKsPdy6LMhUtFHAgpocR8GC6QmwMSFpZs7h6Eziw3SpThFfczTDh5rW2krkqffa11UpX3XkeTTB2FvzZKWXqPY54Y6Rq4AQ5R8L/84'/0'/0'/1/*)";
// let mut wallet = Wallet::new(
// external_descriptor,
// Some(internal_descriptor),
// db,
// Network::Testnet,
// )?;
let mut wallet = Wallet::new(
external_descriptor,
Some(internal_descriptor),
db,
Network::Testnet,
)?;
// let address = wallet.get_address(AddressIndex::New);
// println!("Generated Address: {}", address);
let address = wallet.get_address(AddressIndex::New);
println!("Generated Address: {}", address);
// let balance = wallet.get_balance();
// println!("Wallet balance before syncing: {} sats", balance.total());
let balance = wallet.get_balance();
println!("Wallet balance before syncing: {} sats", balance.total());
// print!("Syncing...");
// // Scanning the blockchain
// let esplora_url = "https://mempool.space/testnet/api";
// let client = esplora_client::Builder::new(esplora_url).build_async()?;
// let checkpoints = wallet.checkpoints();
// let spks = wallet
// .spks_of_all_keychains()
// .into_iter()
// .map(|(k, spks)| {
// let mut first = true;
// (
// k,
// spks.inspect(move |(spk_i, _)| {
// if first {
// first = false;
// print!("\nScanning keychain [{:?}]:", k);
// }
// print!(" {}", spk_i);
// let _ = std::io::stdout().flush();
// }),
// )
// })
// .collect();
// let update = client
// .scan(
// checkpoints,
// spks,
// std::iter::empty(),
// std::iter::empty(),
// STOP_GAP,
// PARALLEL_REQUESTS,
// )
// .await?;
// println!();
// wallet.apply_update(update)?;
// wallet.commit()?;
print!("Syncing...");
let client =
esplora_client::Builder::new("https://blockstream.info/testnet/api").build_async()?;
// let balance = wallet.get_balance();
// println!("Wallet balance after syncing: {} sats", balance.total());
let local_chain = wallet.checkpoints();
let keychain_spks = wallet
.spks_of_all_keychains()
.into_iter()
.map(|(k, k_spks)| {
let mut once = Some(());
let mut stdout = std::io::stdout();
let k_spks = k_spks
.inspect(move |(spk_i, _)| match once.take() {
Some(_) => print!("\nScanning keychain [{:?}]", k),
None => print!(" {:<3}", spk_i),
})
.inspect(move |_| stdout.flush().expect("must flush"));
(k, k_spks)
})
.collect();
let update = client
.scan(
local_chain,
keychain_spks,
[],
[],
STOP_GAP,
PARALLEL_REQUESTS,
)
.await?;
println!();
wallet.apply_update(update)?;
wallet.commit()?;
// if balance.total() < SEND_AMOUNT {
// println!(
// "Please send at least {} sats to the receiving address",
// SEND_AMOUNT
// );
// std::process::exit(0);
// }
let balance = wallet.get_balance();
println!("Wallet balance after syncing: {} sats", balance.total());
// let faucet_address = Address::from_str("mkHS9ne12qx9pS9VojpwU5xtRd4T7X7ZUt")?;
if balance.total() < SEND_AMOUNT {
println!(
"Please send at least {} sats to the receiving address",
SEND_AMOUNT
);
std::process::exit(0);
}
// let mut tx_builder = wallet.build_tx();
// tx_builder
// .add_recipient(faucet_address.script_pubkey(), SEND_AMOUNT)
// .enable_rbf();
let faucet_address = Address::from_str("mkHS9ne12qx9pS9VojpwU5xtRd4T7X7ZUt")?;
// let (mut psbt, _) = tx_builder.finish()?;
// let finalized = wallet.sign(&mut psbt, SignOptions::default())?;
// assert!(finalized);
let mut tx_builder = wallet.build_tx();
tx_builder
.add_recipient(faucet_address.script_pubkey(), SEND_AMOUNT)
.enable_rbf();
// let tx = psbt.extract_tx();
// client.broadcast(&tx).await?;
// println!("Tx broadcasted! Txid: {}", tx.txid());
let (mut psbt, _) = tx_builder.finish()?;
let finalized = wallet.sign(&mut psbt, SignOptions::default())?;
assert!(finalized);
// Ok(())
let tx = psbt.extract_tx();
client.broadcast(&tx).await?;
println!("Tx broadcasted! Txid: {}", tx.txid());
Ok(())
}