ChrisMarxDev

// you will need the following import
// import 'package:flutter/services.dart';


Future<DeployedContract> loadContract() async {
    String abiCode = await rootBundle.loadString("assets/abi.json");
    String contractAddress = "0x8A30f78133176ed5E6CcB0AE8429AEEBf4c82Ffc";

    final contract = DeployedContract(ContractAbi.fromJson(abiCode, "MetaCoin"),
        EthereumAddress.fromHex(contractAddress));

ChrisMarxDev

import 'package:http/http.dart';
import 'package:web3dart/web3dart.dart';

class _MyHomePageState extends State<MyHomePage> {
  Client httpClient;
  Web3Client ethClient;

 @override
  void initState() {
    super.initState();