web3dart_async 3.0.1

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

example/lib/main.dart

// ignore_for_file: public_member_api_docs

import 'package:http/http.dart';
import 'package:wallet/wallet.dart';
import 'package:web3dart_async/web3dart_async.dart';

const String privateKey =
    'a2fd51b96dc55aeb14b30d55a6b3121c7b9c599500c1beb92a389c3377adc86e';
const String rpcUrl = 'http://localhost:7545';

Future<void> main() async {
  // start a client we can use to send transactions
  final client = Web3Client(rpcUrl, Client());

  final credentials = EthPrivateKey.fromHex(privateKey);
  final address = await credentials.address;

  print(address.eip55With0x);
  print(await client.getBalance(address));

  await client.sendTransaction(
    credentials,
    Transaction(
      to: EthereumAddress.fromHex('0xC914Bb2ba888e3367bcecEb5C2d99DF7C7423706'),
      gasPrice: EtherAmount.inWei(BigInt.one),
      maxGas: 100000,
      value: EtherAmount.fromInt(EtherUnit.ether, 1),
    ),
  );

  await client.dispose();
}