decodeEventLogs: data out-of-bounds

[daweth]

Describe the bug
when trying to decode event topics using decodeEventLogs, UnhandledPromiseRejectionWarning: Error: data out-of-bounds (length=64, offset=96, code=BUFFER_OVERRUN, version=abi/5.4.1)
is triggered

Reproduction steps

You can try with this this transaction:

0xd41a038b3d5f1f0e1f8231a70d7dac6d55c111f72c656079d150c5d5f278bde5

Environment:
Node, Alchemy.

[zemse]

Can be reproduced with:

const log = {
  data: "0xf2a13c1651d41845f8c0994c30d40383b4f9d9b21856fde5f4fa910d340822be6ed43322383c3ab6650e2112c233411b5a39f961550f141f249372e68afc51240000000000000000000000000000000000000000000000a2a15d09519be00000",
  topics: [
    "0xc4109843e0b7d514e4c093114b863f8e7d8d9a458c372cd51bfe526b588006c9",
    "0x000000000000000000000000e248eedbaca068e95b9c6effda5294a4d79a4439",
    "0x0000000000000000000000000d89ed6effc9c847ce74b89253b851c80b76c62a",
    "0x0000000000000000000000000000000000000000000000000000000000000000",
  ],
};

const iface = new ethers.utils.Interface(['event OrdersMatched (bytes32 buyHash, bytes32 sellHash, address indexed maker, address indexed taker, uint256 price, bytes32 indexed metadata)'])

iface.decodeEventLog('OrdersMatched', log)

[ricmoo]

The signature for the decodeEventLog is decodeEventLog(event, data, topics?).

I think you are looking for the iface.parseLog method.

[tfzxyinhao]

I have the same problem on ethers.js v5.5.4

networks

{
    "networks": [
        {
            "id": "97",
            "endpoint": "https://data-seed-prebsc-1-s1.binance.org:8545/"
        }
    ]
}

code

let token = tokenList[props.name];
let provider = new ethers.providers.JsonRpcProvider(networks[0].endpoint);
let erc20 = new ethers.Contract(token.address, token.abi, provider);
let iface = new ethers.utils.Interface(token.abi);
let result = erc20.filters.Transfer();
console.log(result);
try {
  let events = iface.parseLog(result);
} catch (e) {
  console.log(e);
}

the result

{
    "address": "0x90f002dac35b21f9F9Bb972BF419Bab1eFF27163",
    "topics": [
        "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"
    ]
}

throw the error

Error: data out-of-bounds (length=0, offset=32, code=BUFFER_OVERRUN, version=abi/5.5.0)
    at Logger.makeError (index.ts:225)
    at Logger.throwError (index.ts:237)
    at Reader._peekBytes (abstract-coder.ts:184)
    at Reader.readBytes (abstract-coder.ts:198)
    at Reader.readValue (abstract-coder.ts:205)
    at AddressCoder.decode (address.ts:28)
    at array.ts:108
    at Array.forEach (<anonymous>)
    at unpack (array.ts:89)
    at TupleCoder.decode (tuple.ts:58)

[ricmoo]

Can you include the ABI? That error indicates either your ABI is incorrect or the contract is returning invalid data.

[tfzxyinhao]

https://api-testnet.bscscan.com/api?module=contract&action=getabi&address=0x90f002dac35b21f9f9bb972bf419bab1eff27163

[
                {
                    "inputs": [],
                    "stateMutability": "nonpayable",
                    "type": "constructor"
                },
                {
                    "anonymous": false,
                    "inputs": [
                        {
                            "indexed": true,
                            "internalType": "address",
                            "name": "owner",
                            "type": "address"
                        },
                        {
                            "indexed": true,
                            "internalType": "address",
                            "name": "spender",
                            "type": "address"
                        },
                        {
                            "indexed": false,
                            "internalType": "uint256",
                            "name": "value",
                            "type": "uint256"
                        }
                    ],
                    "name": "Approval",
                    "type": "event"
                },
                {
                    "anonymous": false,
                    "inputs": [
                        {
                            "indexed": true,
                            "internalType": "address",
                            "name": "previousOwner",
                            "type": "address"
                        },
                        {
                            "indexed": true,
                            "internalType": "address",
                            "name": "newOwner",
                            "type": "address"
                        }
                    ],
                    "name": "OwnershipTransferred",
                    "type": "event"
                },
                {
                    "anonymous": false,
                    "inputs": [
                        {
                            "indexed": true,
                            "internalType": "address",
                            "name": "from",
                            "type": "address"
                        },
                        {
                            "indexed": true,
                            "internalType": "address",
                            "name": "to",
                            "type": "address"
                        },
                        {
                            "indexed": false,
                            "internalType": "uint256",
                            "name": "value",
                            "type": "uint256"
                        }
                    ],
                    "name": "Transfer",
                    "type": "event"
                },
                {
                    "inputs": [],
                    "name": "_decimals",
                    "outputs": [
                        {
                            "internalType": "uint8",
                            "name": "",
                            "type": "uint8"
                        }
                    ],
                    "stateMutability": "view",
                    "type": "function"
                },
                {
                    "inputs": [],
                    "name": "_name",
                    "outputs": [
                        {
                            "internalType": "string",
                            "name": "",
                            "type": "string"
                        }
                    ],
                    "stateMutability": "view",
                    "type": "function"
                },
                {
                    "inputs": [],
                    "name": "_symbol",
                    "outputs": [
                        {
                            "internalType": "string",
                            "name": "",
                            "type": "string"
                        }
                    ],
                    "stateMutability": "view",
                    "type": "function"
                },
                {
                    "inputs": [
                        {
                            "internalType": "address",
                            "name": "owner",
                            "type": "address"
                        },
                        {
                            "internalType": "address",
                            "name": "spender",
                            "type": "address"
                        }
                    ],
                    "name": "allowance",
                    "outputs": [
                        {
                            "internalType": "uint256",
                            "name": "",
                            "type": "uint256"
                        }
                    ],
                    "stateMutability": "view",
                    "type": "function"
                },
                {
                    "inputs": [
                        {
                            "internalType": "address",
                            "name": "spender",
                            "type": "address"
                        },
                        {
                            "internalType": "uint256",
                            "name": "amount",
                            "type": "uint256"
                        }
                    ],
                    "name": "approve",
                    "outputs": [
                        {
                            "internalType": "bool",
                            "name": "",
                            "type": "bool"
                        }
                    ],
                    "stateMutability": "nonpayable",
                    "type": "function"
                },
                {
                    "inputs": [
                        {
                            "internalType": "address",
                            "name": "account",
                            "type": "address"
                        }
                    ],
                    "name": "balanceOf",
                    "outputs": [
                        {
                            "internalType": "uint256",
                            "name": "",
                            "type": "uint256"
                        }
                    ],
                    "stateMutability": "view",
                    "type": "function"
                },
                {
                    "inputs": [],
                    "name": "decimals",
                    "outputs": [
                        {
                            "internalType": "uint256",
                            "name": "",
                            "type": "uint256"
                        }
                    ],
                    "stateMutability": "view",
                    "type": "function"
                },
                {
                    "inputs": [
                        {
                            "internalType": "address",
                            "name": "spender",
                            "type": "address"
                        },
                        {
                            "internalType": "uint256",
                            "name": "subtractedValue",
                            "type": "uint256"
                        }
                    ],
                    "name": "decreaseAllowance",
                    "outputs": [
                        {
                            "internalType": "bool",
                            "name": "",
                            "type": "bool"
                        }
                    ],
                    "stateMutability": "nonpayable",
                    "type": "function"
                },
                {
                    "inputs": [],
                    "name": "getOwner",
                    "outputs": [
                        {
                            "internalType": "address",
                            "name": "",
                            "type": "address"
                        }
                    ],
                    "stateMutability": "view",
                    "type": "function"
                },
                {
                    "inputs": [
                        {
                            "internalType": "address",
                            "name": "spender",
                            "type": "address"
                        },
                        {
                            "internalType": "uint256",
                            "name": "addedValue",
                            "type": "uint256"
                        }
                    ],
                    "name": "increaseAllowance",
                    "outputs": [
                        {
                            "internalType": "bool",
                            "name": "",
                            "type": "bool"
                        }
                    ],
                    "stateMutability": "nonpayable",
                    "type": "function"
                },
                {
                    "inputs": [],
                    "name": "isOwner",
                    "outputs": [
                        {
                            "internalType": "bool",
                            "name": "",
                            "type": "bool"
                        }
                    ],
                    "stateMutability": "view",
                    "type": "function"
                },
                {
                    "inputs": [],
                    "name": "owner",
                    "outputs": [
                        {
                            "internalType": "address",
                            "name": "",
                            "type": "address"
                        }
                    ],
                    "stateMutability": "view",
                    "type": "function"
                },
                {
                    "inputs": [],
                    "name": "renounceOwnership",
                    "outputs": [],
                    "stateMutability": "nonpayable",
                    "type": "function"
                },
                {
                    "inputs": [],
                    "name": "symbol",
                    "outputs": [
                        {
                            "internalType": "string",
                            "name": "",
                            "type": "string"
                        }
                    ],
                    "stateMutability": "view",
                    "type": "function"
                },
                {
                    "inputs": [],
                    "name": "totalSupply",
                    "outputs": [
                        {
                            "internalType": "uint256",
                            "name": "",
                            "type": "uint256"
                        }
                    ],
                    "stateMutability": "view",
                    "type": "function"
                },
                {
                    "inputs": [
                        {
                            "internalType": "address",
                            "name": "recipient",
                            "type": "address"
                        },
                        {
                            "internalType": "uint256",
                            "name": "amount",
                            "type": "uint256"
                        }
                    ],
                    "name": "transfer",
                    "outputs": [
                        {
                            "internalType": "bool",
                            "name": "",
                            "type": "bool"
                        }
                    ],
                    "stateMutability": "nonpayable",
                    "type": "function"
                },
                {
                    "inputs": [
                        {
                            "internalType": "address",
                            "name": "sender",
                            "type": "address"
                        },
                        {
                            "internalType": "address",
                            "name": "recipient",
                            "type": "address"
                        },
                        {
                            "internalType": "uint256",
                            "name": "amount",
                            "type": "uint256"
                        }
                    ],
                    "name": "transferFrom",
                    "outputs": [
                        {
                            "internalType": "bool",
                            "name": "",
                            "type": "bool"
                        }
                    ],
                    "stateMutability": "nonpayable",
                    "type": "function"
                },
                {
                    "inputs": [
                        {
                            "internalType": "address",
                            "name": "newOwner",
                            "type": "address"
                        }
                    ],
                    "name": "transferOwnership",
                    "outputs": [],
                    "stateMutability": "nonpayable",
                    "type": "function"
                }
            ]

[zemse]

@tfzxyinhao there is a error in the code:

let filter = erc20.filters.Transfer(); // this will give u a filter
let result = await erc20.queryFilter(filter); // this will query chain for logs that match the filter
console.log(result); // will be an array of logs
try {
  let events = iface.parseLog(result[0]); // parse the first log

[Ding-Fan]

@tfzxyinhao there is a error in the code:

let filter = erc20.filters.Transfer(); // this will give u a filter
let result = await erc20.queryFilter(filter); // this will query chain for logs that match the filter
console.log(result); // will be an array of logs
try {
  let events = iface.parseLog(result[0]); // parse the first log

I feed parseLog with filter and this data out-of-bounds error occurs. After feed it with result instead and set the provider of my useContract (I'm using wagmi), everything works fine~

[rickiey]

RangeError: data out-of-bounds (buffer=0x0000000000000000000000006d9e9daa4ac2de801dd6f2f18c6e6cd584a8d714000000000000000000000000346989e31b131eb8220b33b2e2cbaf274beccd24, length=64, offset=96, code=BUFFER_OVERRUN, version=6.5.1)

[ricmoo]

That indicates that you are trying to decode data using an incompatible ABI entry. This can occur if the ABI is wrong or there is a bug in an ASM block within a contract. You need to include the ABI, contract address and network if you need more help though. :)