Function executeSwap

solana-example/src/index.ts:98–175

()

// === Step 4: Execute Swap with Simulation and Confirmation ===
async function executeSwap() {
  try {
    const quote = await getQuote();
    console.log(`💰 Quote received: ${quote.amount_out} base units of USDC`);

    const instructions = buildInstructions(quote.instructions);
    const [addressLookupTableAccounts, latestBlockhash] = await Promise.all([
      resolveAddressLookupTables(quote.address_lookup_tables ?? []),
      config.connection.getLatestBlockhash(),
    ]);

    const messageV0 = new TransactionMessage({
      payerKey: config.keypairConfig.keypair.publicKey,
      recentBlockhash: latestBlockhash.blockhash,
      instructions,
    }).compileToV0Message(addressLookupTableAccounts);

    const versionedTx = new VersionedTransaction(messageV0);
    versionedTx.sign([config.keypairConfig.keypair]);

    if (!config.keypairConfig.isUserProvided) {
      console.log(
        "No private key provided. Please provide a private key to enable simulation and transaction sending."
      );
      return;
    }

    // === Simulate Transaction ===
    const { value: simulationResult } =
      await config.connection.simulateTransaction(versionedTx, {
        sigVerify: true,
      });

    if (simulationResult.err) {
      console.error("❌ Simulation failed:", simulationResult.err);
      if (simulationResult.logs) {
        console.error("🪵 Logs:\n" + simulationResult.logs.join("\n"));
      }
      throw new Error("Aborting due to failed simulation.");
    } else {
      console.log("✅ Simulation succeeded");
    }

    if (config.dryRun) {
      console.log("🏁 Dry run complete. Set DRY_RUN=false to send the transaction.");
      return;
    }

    // === Send Transaction ===
    const signature = await config.connection.sendTransaction(versionedTx, {
      skipPreflight: false,
    });

    console.log(`✍️ Transaction sent with signature: ${signature}`);

    // === Confirm Transaction Status ===
    const confirmation = await config.connection.confirmTransaction(
      {