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soliditysmartcontractsethers.jserc721

Transferring ownership of NFT(ERC721)


I'm trying to change the ownership of a requested ERC721(NFT) to another wallet.

I'm using the Mumbai Test Net and ethers.

To do it I need to create the general ERC721 contract using its abi but I can't find it.

In comparison, the ERC20's abi I found easily - link and used it like followed and it's working:

const createERC20Contract = (contractAddress) => {
    const provider = new ethers.providers.Web3Provider(ethereum);
    const signer = provider.getSigner();
    const ERC20Contract = new ethers.Contract(contractAddress, ERC20ABI, signer);

    return ERC20Contract;
}

Where can I find the abi of ERC721 to create the ethers.Contract() ?


Solution

  • Here's a generic ERC721 ABI that I built from the OpenZeppelin implementation. (The bare minimum contract - none of their extensions such as mint and burn tokens.)

    [
        {
            "inputs": [
                {
                    "internalType": "string",
                    "name": "name_",
                    "type": "string"
                },
                {
                    "internalType": "string",
                    "name": "symbol_",
                    "type": "string"
                }
            ],
            "stateMutability": "nonpayable",
            "type": "constructor"
        },
        {
            "anonymous": false,
            "inputs": [
                {
                    "indexed": true,
                    "internalType": "address",
                    "name": "owner",
                    "type": "address"
                },
                {
                    "indexed": true,
                    "internalType": "address",
                    "name": "approved",
                    "type": "address"
                },
                {
                    "indexed": true,
                    "internalType": "uint256",
                    "name": "tokenId",
                    "type": "uint256"
                }
            ],
            "name": "Approval",
            "type": "event"
        },
        {
            "anonymous": false,
            "inputs": [
                {
                    "indexed": true,
                    "internalType": "address",
                    "name": "owner",
                    "type": "address"
                },
                {
                    "indexed": true,
                    "internalType": "address",
                    "name": "operator",
                    "type": "address"
                },
                {
                    "indexed": false,
                    "internalType": "bool",
                    "name": "approved",
                    "type": "bool"
                }
            ],
            "name": "ApprovalForAll",
            "type": "event"
        },
        {
            "anonymous": false,
            "inputs": [
                {
                    "indexed": true,
                    "internalType": "address",
                    "name": "from",
                    "type": "address"
                },
                {
                    "indexed": true,
                    "internalType": "address",
                    "name": "to",
                    "type": "address"
                },
                {
                    "indexed": true,
                    "internalType": "uint256",
                    "name": "tokenId",
                    "type": "uint256"
                }
            ],
            "name": "Transfer",
            "type": "event"
        },
        {
            "inputs": [
                {
                    "internalType": "address",
                    "name": "to",
                    "type": "address"
                },
                {
                    "internalType": "uint256",
                    "name": "tokenId",
                    "type": "uint256"
                }
            ],
            "name": "approve",
            "outputs": [],
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "inputs": [
                {
                    "internalType": "address",
                    "name": "owner",
                    "type": "address"
                }
            ],
            "name": "balanceOf",
            "outputs": [
                {
                    "internalType": "uint256",
                    "name": "",
                    "type": "uint256"
                }
            ],
            "stateMutability": "view",
            "type": "function"
        },
        {
            "inputs": [
                {
                    "internalType": "uint256",
                    "name": "tokenId",
                    "type": "uint256"
                }
            ],
            "name": "getApproved",
            "outputs": [
                {
                    "internalType": "address",
                    "name": "",
                    "type": "address"
                }
            ],
            "stateMutability": "view",
            "type": "function"
        },
        {
            "inputs": [
                {
                    "internalType": "address",
                    "name": "owner",
                    "type": "address"
                },
                {
                    "internalType": "address",
                    "name": "operator",
                    "type": "address"
                }
            ],
            "name": "isApprovedForAll",
            "outputs": [
                {
                    "internalType": "bool",
                    "name": "",
                    "type": "bool"
                }
            ],
            "stateMutability": "view",
            "type": "function"
        },
        {
            "inputs": [],
            "name": "name",
            "outputs": [
                {
                    "internalType": "string",
                    "name": "",
                    "type": "string"
                }
            ],
            "stateMutability": "view",
            "type": "function"
        },
        {
            "inputs": [
                {
                    "internalType": "uint256",
                    "name": "tokenId",
                    "type": "uint256"
                }
            ],
            "name": "ownerOf",
            "outputs": [
                {
                    "internalType": "address",
                    "name": "",
                    "type": "address"
                }
            ],
            "stateMutability": "view",
            "type": "function"
        },
        {
            "inputs": [
                {
                    "internalType": "address",
                    "name": "from",
                    "type": "address"
                },
                {
                    "internalType": "address",
                    "name": "to",
                    "type": "address"
                },
                {
                    "internalType": "uint256",
                    "name": "tokenId",
                    "type": "uint256"
                }
            ],
            "name": "safeTransferFrom",
            "outputs": [],
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "inputs": [
                {
                    "internalType": "address",
                    "name": "from",
                    "type": "address"
                },
                {
                    "internalType": "address",
                    "name": "to",
                    "type": "address"
                },
                {
                    "internalType": "uint256",
                    "name": "tokenId",
                    "type": "uint256"
                },
                {
                    "internalType": "bytes",
                    "name": "_data",
                    "type": "bytes"
                }
            ],
            "name": "safeTransferFrom",
            "outputs": [],
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "inputs": [
                {
                    "internalType": "address",
                    "name": "operator",
                    "type": "address"
                },
                {
                    "internalType": "bool",
                    "name": "approved",
                    "type": "bool"
                }
            ],
            "name": "setApprovalForAll",
            "outputs": [],
            "stateMutability": "nonpayable",
            "type": "function"
        },
        {
            "inputs": [
                {
                    "internalType": "bytes4",
                    "name": "interfaceId",
                    "type": "bytes4"
                }
            ],
            "name": "supportsInterface",
            "outputs": [
                {
                    "internalType": "bool",
                    "name": "",
                    "type": "bool"
                }
            ],
            "stateMutability": "view",
            "type": "function"
        },
        {
            "inputs": [],
            "name": "symbol",
            "outputs": [
                {
                    "internalType": "string",
                    "name": "",
                    "type": "string"
                }
            ],
            "stateMutability": "view",
            "type": "function"
        },
        {
            "inputs": [
                {
                    "internalType": "uint256",
                    "name": "tokenId",
                    "type": "uint256"
                }
            ],
            "name": "tokenURI",
            "outputs": [
                {
                    "internalType": "string",
                    "name": "",
                    "type": "string"
                }
            ],
            "stateMutability": "view",
            "type": "function"
        },
        {
            "inputs": [
                {
                    "internalType": "address",
                    "name": "from",
                    "type": "address"
                },
                {
                    "internalType": "address",
                    "name": "to",
                    "type": "address"
                },
                {
                    "internalType": "uint256",
                    "name": "tokenId",
                    "type": "uint256"
                }
            ],
            "name": "transferFrom",
            "outputs": [],
            "stateMutability": "nonpayable",
            "type": "function"
        }
    ]