SmartContracts - 如何使用“Erc.json”（javascript）运行 function（更新）

Question

Hello guys,

I have a question

I try to smart contract functions from erc.json standarts with JavaScript. To example: I need a random number function with metamask user address(account number) referance for backend

To basicly:

Example JSON values:

    {
    inputs: [{ internalType: 'address', name: 'UserKey', type: 'address' }],
    name: 'RandomNumber',
    outputs: [{ internalType: 'uint256', name: '', type: 'uint256' }],
    stateMutability: 'view',
    type: 'function',
  },

Example smart contract function:

        const daiToken = new web3.eth.Contract(
          ContractABI, // ABI
          address, // Sender address
          chainId
        )

        daiToken.methods
          .RandomNumber(address)
          .call(ContractABI)
          .then(function (result) {
            console.log(result)
          })
          .catch(function (err) {
            console.log(err, 'err')
          })

And here is the console prints:

i hope i explained:)

and happy weekends..

(updated new error)

Answer 1

Are you tried to change <React.StrictMode><App /><React.StrictMode> to <App /> in your index.js file?