Warning! Error encountered during contract execution [execution reverted] (Base Layer2)

[Ghassanee]

I'm trying to execute a swap using Uniswap V2 SDK in a Node.js environment. However, when I run the code below, I receive the following error:

Warning! Error encountered during contract execution [execution reverted]

async function createPair() {
   const pairAddress = Pair.getAddress(TOKEN, WETH9[TOKEN.chainId]);
 
   const pairContract = new ethers.Contract(pairAddress, UniswapV2PoolAbi, provider);
 
   const reserves = await pairContract['getReserves']();
   const [reserve0, reserve1] = reserves;
 
   const reserve0Parsed = BigInt(reserve0.toString()).toString();
   const reserve1Parsed = BigInt(reserve1.toString()).toString();
 
   const tokens = [TOKEN, WETH9[TOKEN.chainId]];
   const [token0, token1] = tokens[0].sortsBefore(tokens[1]) ? tokens : [tokens[1], tokens[0]];
 
   const pair = new Pair(
     CurrencyAmount.fromRawAmount(token0, reserve0Parsed),
     CurrencyAmount.fromRawAmount(token1, reserve1Parsed)
   );
 
   return pair;
 }

  async function swap() {
    const amountIn = ethers.parseEther('0.00001').toString();
    const slippageTolerance = new Percent('50', '10000');
    const to = WALLET_ADDRESS;
    const signer = new ethers.Wallet(WALLET_SECRET);
    const account = signer.connect(provider);
    const command = '0x08';
    const deadline = 2 * 10 ** 10;
    const fromEoa = true;
  
    const uniswap = new ethers.Contract(
      swapRouterAddress,
      [
        'function execute(bytes calldata commands, bytes[] calldata inputs, uint256 deadline) external payable returns (bytes[] memory outputs)',
      ],
      account
    );
  
    const pair = await createPair();
    const route = new Route([pair], WETH9[TOKEN.chainId], TOKEN);
    const trade = new Trade(
      route,
      CurrencyAmount.fromRawAmount(WETH9[TOKEN.chainId], amountIn),
      TradeType.EXACT_INPUT
    );
  
    const amountOutMin = trade.minimumAmountOut(slippageTolerance).toExact();
  
    const amoutOut = ethers.parseEther(amountOutMin);
  
    const pathData = ethers.solidityPacked(
      ['address', 'address'],
      [WETH9[ChainId.BASE].address, TOKEN.address]
    );
  
    const v2Calldata = ethers.AbiCoder.defaultAbiCoder().encode(
      ['address', 'uint256', 'uint256', 'bytes', 'bool'],
      [to, amountIn, amoutOut, pathData, fromEoa]
    );
  
    const tx = await uniswap.execute(command, [v2Calldata], deadline, {
      value: amountIn,
      gasPrice: ethers.parseUnits('0.15', 'gwei'),
      gasLimit: 100000,
      chainId: ChainId.BASE,
      from: WALLET_ADDRESS,
    });
  
    console.log(`Transaction hash: ${tx.hash}`);
    const receipt = await tx.wait();
  
    console.log(`Transaction was mined in block ${receipt.blockNumber}`);
  }

Here's a brief overview of what the code does:

1.Imports necessary Uniswap V2 SDK components and ethers.js.
2.Sets up provider with a QuickNode HTTP endpoint.
3.Defines wallet address and secret.
4.Creates a swapRouterAddress and a TOKEN.
5.Defines a swap function that executes a swap using Uniswap V2.
6.Inside the swap function:

• a. Sets up amountIn, slippage tolerance, recipient address, and signer.
• b. Creates a Uniswap contract instance.
• c. Calls createPair() to create a Uniswap pair.
• d. Calculates trade details and encodes calldata.
• e. Executes the swap with Uniswap's execute() function.

I suspect the issue might be related to how I'm encoding the data or setting up the transaction. Can someone help me understand why I'm getting this error and how I can resolve it?

Also check some of my transactions: https://basescan.org/tx/0x5a4ccdf8476eac2b41e00927cae6cb5817cff4acfb1c4746244ebd3d22784e9e

[Asadere1]

Hey @Ghassanee

How are you ?
Did you find the issue ??

[Si-sivan]

hello @Ghassanee have you solved this problem?