Error while calling purchase NFT function

Smart Contracts
,
1

Hello everyone, I am facing an error called: Transaction submission failed: missing revert data (action="estimateGas", data=null, reason=null, transaction={ "data": "0xee2729e50000000000000000000000000000000000000000000000000000000000000000000000000000000000000000312c0649d0c0ec8e9e594b8e7971c47be4f12ad4", "from": "0xa5E4645137a9024bA06Ad7d65513E4a08cB9131f", "to": "0xAAEB20aD80ad21daC9F83B463c5d2Fe72B38e01e" }, invocation=null, revert=null, code=CALL_EXCEPTION, version=6.4.0)
while calling the callPurchaseItem function to buy an NFT.
Let me share the contract functions here:
Child Contract:

   function purchaseItem(uint256 tokenId, address to) external payable {
        uint256 _totalPrice = getTotalPrice(tokenId);
        MarketItem storage item = marketItems[tokenId];
           require(
            msg.value >= _totalPrice,
            "not enough matic to cover item price and market fee"
        );
        require(!item.sold, "item already sold");
        item.seller.transfer(item.price);
        feeAccount.transfer(_totalPrice - item.price);
        item.sold = true; 
        IERC721(item.nftContract).transferFrom(address(this), to, item.tokenId);
        marketItems[tokenId].owner = payable(to);
        allSoldItems.push(tokenId);
        emit Bought(address(item.nftContract), item.tokenId, item.price, item.seller, to);
    }

Parent code: 
    function callPurchaseItem(
    uint256 tokenId,
    address tokenAddress
) public payable {
    LotteryEscrow(tokenAddress).purchaseItem{value: msg.value}(tokenId, msg.sender);
}

And here's the frontend code:

async function purchaseItem(tokenID, address) {
  const provider = new ethers.BrowserProvider(window.ethereum);
  const signer = await provider.getSigner();
  const lotteryContract = new ethers.Contract(
    LotteryEscrowParentContract,
    lotteryEscrowParentABI,
    signer
  );
  try {
    // Convert totalPrice to BigNumber correctly
    const totalPrice = await lotteryContract.getTotalPrice(address, tokenID);
    const totalPriceString = totalPrice.toString();
    console.log(tokenID, address, totalPrice, "callPurchaseArguments");
    console.log(totalPriceString, "totalPriceString");  
    const feeData = await provider.getFeeData();

    // Access the relevant values:
    const gasPrice = feeData.gasPrice; 
    console.log("Gas price in gwei:", gasPriceInGwei);
   console.log("GasPrice", gasPrice);
    const purchaseItemTx = await lotteryContract.callPurchaseItem(tokenID, address, {
      value: totalPrice,
      // gasPrice: gasPrice, // Updated gas price
      // gasLimit: 12000000, // Adjust as needed
    });

    const txReceipt = await purchaseItemTx.wait();
    // Check if the transaction was successful
    if (txReceipt && txReceipt.status === 1) {
      console.log("NFT purchased");
    } else {
      console.log("Transaction failed or was dropped");
    }
  } catch (error) {
    console.error("Transaction submission failed:", error.message);
  }
}

And I am attaching console values here as well

Screenshot from 2023-12-26 09-32-45
Screenshot from 2023-12-26 09-32-451289×297 40.9 KB

Can anyone tell me the reason behind this error?

Thank you!

2

You should specify which network you are trying to execute this transaction on.

On ethereum/mainnet, for example, the wallet above has no ether, which means that you must be attempting to execute this transaction on a different network; so which one is it?

3

It's polygon Mumbai network

4

The contract deployed at this address has no funds (zero balance):

image
image964×544 32.8 KB

Hence each one of the following two lines cannot complete successfully:

You probably need to send funds as part of your transaction, which is clearly missing it:

transaction = {
    "data": "0xee2729e500000000...",
    "from": "0xa5E4645137a9024bA06Ad7d65513E4a08cB9131f",
    "to": "0xAAEB20aD80ad21daC9F83B463c5d2Fe72B38e01e"
}

You can specify the amount of funds that you wish to pass by adding the value attribute:

transaction = {
    "data": "...",
    "from": "...",
    "to": "...",
    "value": "maticAmount"
}

Of course, your wallet needs to hold that amount plus the amount required for paying the gas.

5

But I have added value in the contract function and frontend as well.

LotteryEscrow(tokenAddress).purchaseItem{value: msg.value}(tokenId, msg.sender);

const purchaseItemTx = await lotteryContract.callPurchaseItem(tokenID, address, {
      value: totalPrice,
    });

And I am getting the right value of totalPrice in console log

6

Screenshot from 2023-12-27 09-42-58
Screenshot from 2023-12-27 09-42-581366×768 210 KB

These transactions just keep failing if I add gasPrice and gasLimit manually and the value is already passed in the function so what is the reason behind this?

7

This clearly indicates that no funds were sent (no value attribute was specified).

8

Tell you what - if you verify this contract, then polygonscan should be able to display the exact error-message and not just Warning! Error encountered during contract execution [execution reverted].

9

Also note that this type of setting is relevant to transaction type 1, which you should probably specify explicitly as part of your transaction, otherwise it uses transaction type 2 (EIP 1559), where the max fee and priority fee must be specified.

In this failed transaction, for example, type 2 was specified:

image

So you should either specify type 1 along with your desired gas price and gas limit, or type 2 along with your desired max fee and priority fee.

10

Okay, thank you for your time:)

1 Like