index.ts

import RaydiumSwap from './RaydiumSwap';
import { Transaction, VersionedTransaction } from '@solana/web3.js';
import 'dotenv/config';
import { swapConfig } from './swapConfig'; // Import the configuration

/**
 * Performs a token swap on the Raydium protocol.
 * Depending on the configuration, it can execute the swap or simulate it.
 */
const swap = async () => {
  /**
   * The RaydiumSwap instance for handling swaps.
   */
  const raydiumSwap = new RaydiumSwap(process.env.RPC_URL, process.env.WALLET_PRIVATE_KEY);
  console.log(`Raydium swap initialized`);
  console.log(`Swapping ${swapConfig.tokenAAmount} of ${swapConfig.tokenAAddress} for ${swapConfig.tokenBAddress}...`)

  /**
   * Load pool keys from the Raydium API to enable finding pool information.
   */
  await raydiumSwap.loadPoolKeys(swapConfig.liquidityFile);
  console.log(`Loaded pool keys`);

  /**
   * Find pool information for the given token pair.
   */
  const poolInfo = raydiumSwap.findPoolInfoForTokens(swapConfig.tokenAAddress, swapConfig.tokenBAddress);
  if (!poolInfo) {
    console.error('Pool info not found');
    return 'Pool info not found';
  } else {
    console.log('Found pool info');
  }

  /**
   * Prepare the swap transaction with the given parameters.
   */
  const tx = await raydiumSwap.getSwapTransaction(
    swapConfig.tokenBAddress,
    swapConfig.tokenAAmount,
    poolInfo,
    swapConfig.maxLamports, 
    swapConfig.useVersionedTransaction,
    swapConfig.direction
  );

  /**
   * Depending on the configuration, execute or simulate the swap.
   */
  if (swapConfig.executeSwap) {
    /**
     * Send the transaction to the network and log the transaction ID.
     */
    const txid = swapConfig.useVersionedTransaction
      ? await raydiumSwap.sendVersionedTransaction(tx as VersionedTransaction, swapConfig.maxRetries)
      : await raydiumSwap.sendLegacyTransaction(tx as Transaction, swapConfig.maxRetries);

    console.log(`https://solscan.io/tx/${txid}`);

  } else {
    /**
     * Simulate the transaction and log the result.
     */
    const simRes = swapConfig.useVersionedTransaction
      ? await raydiumSwap.simulateVersionedTransaction(tx as VersionedTransaction)
      : await raydiumSwap.simulateLegacyTransaction(tx as Transaction);

    console.log(simRes);
  }
};

swap();