feat: complete rewrite

transactions/default-transaction-executor.ts

@@ -0,0 +1,37 @@
+import { BlockhashWithExpiryBlockHeight, Connection, Transaction, VersionedTransaction } from '@solana/web3.js';
+import { TransactionExecutor } from './transaction-executor.interface';
+import { logger } from '../helpers';
+
+export class DefaultTransactionExecutor implements TransactionExecutor {
+  constructor(private readonly connection: Connection) {}
+
+  public async executeAndConfirm(
+    transaction: Transaction | VersionedTransaction,
+    latestBlockhash: BlockhashWithExpiryBlockHeight,
+  ): Promise<{ confirmed: boolean; signature: string }> {
+    logger.debug('Executing transaction...');
+    const signature = await this.execute(transaction);
+
+    logger.debug({ signature }, 'Confirming transaction...');
+    return this.confirm(signature, latestBlockhash);
+  }
+
+  private async execute(transaction: Transaction | VersionedTransaction) {
+    return this.connection.sendRawTransaction(transaction.serialize(), {
+      preflightCommitment: this.connection.commitment,
+    });
+  }
+
+  private async confirm(signature: string, latestBlockhash: BlockhashWithExpiryBlockHeight) {
+    const confirmation = await this.connection.confirmTransaction(
+      {
+        signature,
+        lastValidBlockHeight: latestBlockhash.lastValidBlockHeight,
+        blockhash: latestBlockhash.blockhash,
+      },
+      this.connection.commitment,
+    );
+
+    return { confirmed: !confirmation.value.err, signature };
+  }
+}

transactions/index.ts

@@ -0,0 +1,2 @@
+export * from './default-transaction-executor';
+export * from './transaction-executor.interface';

transactions/transaction-executor.interface.ts

@@ -0,0 +1,8 @@
+import { BlockhashWithExpiryBlockHeight, Transaction, VersionedTransaction } from '@solana/web3.js';
+
+export interface TransactionExecutor {
+  executeAndConfirm(
+    transaction: Transaction | VersionedTransaction,
+    latestBlockhash: BlockhashWithExpiryBlockHeight,
+  ): Promise<{ confirmed: boolean; signature: string }>;
+}