web3_browser 0.0.1
web3_browser: ^0.0.1 copied to clipboard
Support for using web3 dart with browser clients such as MetaMask.
import 'dart:convert';
import 'dart:html';
import 'dart:typed_data';
import 'package:web3dart/browser.dart';
import 'package:web3dart/web3dart.dart';
Future<void> main() async {
final eth = window.ethereum;
if (eth == null) {
print('MetaMask is not available');
return;
}
final client = Web3Client.custom(eth.asRpcService());
final credentials = await eth.requestAccount();
print('Using ${credentials.address}');
print('Client is listening: ${await client.isListeningForNetwork()}');
final message = Uint8List.fromList(utf8.encode('Hello from web3dart'));
final signature = await credentials.signPersonalMessage(message);
print('Signature: ${base64.encode(signature)}');
}
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