Question

ERR：返回的值无效，是否耗尽 Gas？如果您没有为从中检索数据的合约使用正确的 ABI、从不存在的块号请求数据或查询未完全同步的节点，您也可能会看到此错误。

阿比：https://github.com/creed-victor/frontend-test/blob/main/WeenusTokenABI.json

    const tokenAddress = "0x101848D5C5bBca18E6b4431eEdF6B95E9ADF82FA";

 const web3Context = useWeb3(`wss://mainnet.infura.io/ws/v3/${infuraProjectId}`);

  const { networkId, networkName, accounts, providerName, lib  } = web3Context;

  const web3 = new Web3(`wss://mainnet.infura.io/ws/v3/${infuraProjectId}`)

  const weenusContract = new web3.eth.Contract(abi, tokenAddress);
const getTokenBalance = useCallback(async () => {
    let tokenBalance = accounts && accounts.length > 0 ? await contract.methods.balanceOf(accounts[0]).call().then(receipt=> {return receipt}) : 'unknown';
    setTokenBalance(tokenBalance);
  }, [accounts])

  useEffect(()=>{
    getTokenBalance();
  }, [accounts, getTokenBalance])

合同没有响应函数调用。是阿比吗？有没有办法替代 abi 或改进它？

Answer 1

更改了 const web3 = new Web3(wss://mainnet.infura.io/ws/v3/${infuraProjectId}) 到const web3 = new Web3(window.ethereum)

Web3：从地址中检索 ERC20 代币的余额

1 个答案: