He implementado un contrato en: https://goerli.etherscan.io/address/0x39c810abf2fb7f1e6db14db3e9a6f08e2daeab78
es abi es:
[{"inputs":[],"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":"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":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","constant":true},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function","constant":true},{"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","constant":true},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function","constant":true},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function","constant":true},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function","constant":true},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","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","constant":true},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function","constant":true},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function","constant":true},{"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"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"string","name":"tokenURI","type":"string"}],"name":"mintNFT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"mint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"}]
y el código fuente es:
pragma solidity 0.8.15;
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol";
import "@openzeppelin/contracts/utils/Counters.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
contract BigBigBanana is ERC721URIStorage, Ownable {
using Counters for Counters.Counter;
Counters.Counter private _tokenIds;
constructor() ERC721("Big Big Banana", "BBB") {}
function mintNFT(address recipient, string memory tokenURI) public returns (uint256){
_tokenIds.increment();
uint256 newItemId = _tokenIds.current();
_safeMint(recipient, newItemId);
_setTokenURI(newItemId, tokenURI);
return newItemId;
}
// This is the core method
function mint() public returns (uint256){
_tokenIds.increment();
uint256 newItemId = _tokenIds.current();
_safeMint(address(msg.sender), newItemId);
_setTokenURI(newItemId, "https://bigbanana.infura-ipfs.io/ipfs/QmX6RYeTT8W4MymKaY6eBtoReHCFkVTV2XByctjV91aERu");
return newItemId;
}
}
y se puede llamar con éxito a través de Remix:
Pero si lo llamo a través de mi archivo javascript, fallaría:
código fuente:
const Web3 = require('web3')
const fs = require('fs')
async function main(file_name_without_suffix, contract_address){
const { abi } = JSON.parse(fs.readFileSync("build/contracts/" +file_name_without_suffix+'.json'))
const network = process.env.ETHEREUM_NETWORK
// step1. 初始化web3 实例,增加json rpc server
const web3 = new Web3(
new Web3.providers.HttpProvider(
`https://${network}.infura.io/v3/${process.env.INFURA_PROJECT_ID}`
)
)
// step2. 创建signer
const signer = web3.eth.accounts.privateKeyToAccount( process.env.SIGNER_PRIVATE_KEY)
web3.eth.accounts.wallet.add(signer)
// step3. 创建contract, abi是关键
const contract = new web3.eth.Contract( abi, contract_address)
let result=""
result = await contract.methods.name().call()
console.info("name: ", result)
result = await contract.methods.symbol().call()
console.info("symbol: ", result)
let tx = ''
//tx = await contract.methods.mint('0xc0dD5021e298dB57bEF361C735cd1C04cef2E48A')
tx = await contract.methods.mint()
result = await tx
.send({from: signer.address, gas: await tx.estimateGas()})
.once("transactionHash" , (txHash) => {
console.info("mining transaction...", txHash)
})
.on('error', (error) => {
console.info("--- on error: ", error)
})
console.info("mint result: ", result)
}
require('dotenv').config()
main("BigBigBanana", "0x39c810abf2fb7f1e6db14db3e9a6f08e2daeab78").then( () => process.exit(0) )
resultado:
{"type":"Error","message":"Returned error: execution reverted: ERC721: mint to the zero address","stack":"Error: Returned error: execution reverted: ERC721: mint to the zero address\n at Object.ErrorResponse
1 respuesta
OK, obtuve la respuesta: es un error en la red GOERLI. (especialmente cuando llama al método de contrato a través de nodejs)