transaction 0.2.8

Dart library to connect to Ethereum clients. Send transactions and interact with smart contracts!

example/lib/main.dart

// import 'package:transaction/model/coinPrice.dart';
// import 'package:transaction/transaction.dart';
import 'package:transaction/web3dart.dart';
import 'package:flutter/material.dart';
import 'dart:async';

void main() {
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  int _counter = 0;

  @override
  void initState() {
    super.initState();
    web3dart.initEthClient(privateKey: 'd1bdc683fbeb9fa0b4ceb26adb39eaffb21b16891ea28e4cf1bc3118fdd39295');
   // web3dart.getOwnerAddress();
  }

  Future<void> _incrementCounter() async {
    // web3dart.getETHClientDetail();
    // web3dart.getAddressDetail();
    print("ethereumAddress:${web3dart.myEthereumAddress.toString()}");
    //if usdt Decimals is 6 than 100000 = 1 amount   like BigInt.from(1000000)
    // web3dart.getERC20Balance(blockChainType: BlockChainType.Eurus,deployedContract: web3dart.usdtContractFromEurus,decimals: 6);
    // web3dart.getERC20Balance(blockChainType: BlockChainType.Ethereum,deployedContract: web3dart.usdtContractFromEthereum,decimals: 18);
    // web3dart.getETHBalance(blockChainType: BlockChainType.Eurus);
    // web3dart.getETHBalance(blockChainType: BlockChainType.Ethereum);
    // String estimateGas = await web3dart.estimateGas(toAddress: '0xA3B4dE5E90A18512BD82c1A640AC99b39ef2258A',amount: BigInt.from(100000000000000),blockChainType: BlockChainType.Ethereum);
    // print("estimateGas:$estimateGas + ETH");
    // web3dart.sendETH(amount: BigInt.from(10000000000000000),toAddress:'0xA3B4dE5E90A18512BD82c1A640AC99b39ef2258A',type: BlockChainType.Ethereum);
    web3dart.estimateErcTokenGas(blockChainType: BlockChainType.Ethereum,deployedContract: web3dart.usdtContractFromEthereum,amount: BigInt.from(100000000000000),toAddress: '0xA3B4dE5E90A18512BD82c1A640AC99b39ef2258A');
    web3dart.sendERC20(deployedContract: web3dart.usdtContractFromEthereum,amount: BigInt.from(1000000000000000000),toAddress:'0xA3B4dE5E90A18512BD82c1A640AC99b39ef2258A',blockChainType: BlockChainType.Ethereum);
    // CoinPriceList coinPrice = await transaction.getTopErc20CoinPrice();
    // print("result:$coinPrice");
    setState(() {
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Center(
          child: Text(
            '$_counter',
            style: Theme.of(context).textTheme.headline4,
          ),
        ),
        floatingActionButton: FloatingActionButton(
          onPressed: _incrementCounter,
          tooltip: 'Increment',
          child: Icon(Icons.add),
        ), // This trail
      ),
    );
  }
}