Calculate & save acceleration bid boost rates

backend/src/repositories/AccelerationRepository.ts

@@ -0,0 +1,43 @@
+import { AccelerationInfo } from '../api/acceleration';
+import { ResultSetHeader, RowDataPacket } from 'mysql2';
+import DB from '../database';
+import logger from '../logger';
+import { IEsploraApi } from '../api/bitcoin/esplora-api.interface';
+
+class AccelerationRepository {
+  public async $saveAcceleration(acceleration: AccelerationInfo, block: IEsploraApi.Block, pool_id: number): Promise<void> {
+    try {
+      await DB.query(`
+        INSERT INTO accelerations(txid, added, height, pool, effective_vsize, effective_fee, boost_rate, boost_cost)
+        VALUE (?, FROM_UNIXTIME(?), ?, ?, ?, ?, ?, ?)
+        ON DUPLICATE KEY UPDATE
+          added = FROM_UNIXTIME(?),
+          height = ?,
+          pool = ?,
+          effective_vsize = ?,
+          effective_fee = ?,
+          boost_rate = ?,
+          boost_cost = ?
+      `, [
+        acceleration.txSummary.txid,
+        block.timestamp,
+        block.height,
+        pool_id,
+        acceleration.txSummary.effectiveVsize,
+        acceleration.txSummary.effectiveFee,
+        acceleration.targetFeeRate, acceleration.cost,
+        block.timestamp,
+        block.height,
+        pool_id,
+        acceleration.txSummary.effectiveVsize,
+        acceleration.txSummary.effectiveFee,
+        acceleration.targetFeeRate, acceleration.cost,
+      ]);
+    } catch (e: any) {
+      logger.err(`Cannot save acceleration (${acceleration.txSummary.txid}) into db. Reason: ` + (e instanceof Error ? e.message : e));
+      // We don't throw, not a critical issue if we miss some accelerations
+    }
+  }
+}
+
+export default new AccelerationRepository();