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quetoolquetool
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added polkadot sample
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‎example/sign/lib/polkadot_sample.dart‎

Lines changed: 193 additions & 0 deletions
Original file line numberDiff line numberDiff line change
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import 'dart:convert';
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import 'dart:developer';
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import 'package:flutter/material.dart';
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import 'package:walletconnect_flutter_dapp/utils/crypto/contract.dart';
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import 'package:walletconnect_flutter_dapp/utils/dart_defines.dart';
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import 'package:walletconnect_flutter_v2/walletconnect_flutter_v2.dart';
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import 'package:walletconnect_modal_flutter/walletconnect_modal_flutter.dart';
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class PolkadotSamplePage extends StatefulWidget {
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const PolkadotSamplePage({super.key});
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@override
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State<PolkadotSamplePage> createState() => _MyHomePageState();
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}
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class _MyHomePageState extends State<PolkadotSamplePage> {
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bool _initialized = false;
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IWalletConnectModalService? _modalService;
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@override
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void initState() {
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super.initState();
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initialize();
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}
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Future<void> initialize() async {
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_modalService = WalletConnectModalService(
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projectId: DartDefines.projectId,
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metadata: const PairingMetadata(
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name: 'Flutter Dapp Example',
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description: 'Flutter Dapp Example',
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url: 'https://www.walletconnect.com/',
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icons: ['https://walletconnect.com/walletconnect-logo.png'],
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redirect: Redirect(
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native: 'flutterdapp://',
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universal: 'https://www.walletconnect.com',
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),
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),
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requiredNamespaces: {
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'eip155': const RequiredNamespace(
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chains: ['eip155:1'],
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methods: [
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'personal_sign',
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'eth_sendTransaction',
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],
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events: [
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'chainChanged',
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'accountsChanged',
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],
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),
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},
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optionalNamespaces: {
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'polkadot': const RequiredNamespace(
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chains: ['polkadot:91b171bb158e2d3848fa23a9f1c25182'],
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methods: [
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'polkadot_signMessage',
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'polkadot_signTransaction',
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],
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events: [],
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),
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},
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);
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await _modalService!.init();
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_modalService!.web3App!.onSessionConnect.subscribe(_onSessionConnect);
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_modalService!.web3App!.onSessionDelete.subscribe(_onSessionDisonnect);
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_modalService!.web3App!.onSessionEvent.subscribe(_onSessionEvent);
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setState(() => _initialized = true);
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}
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void _onSessionConnect(SessionConnect? args) {
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log('_onSessionConnect ${jsonEncode(args?.session.toJson())}');
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setState(() {});
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}
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void _onSessionDisonnect(SessionDelete? args) {
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log('_onSessionDisonnect ${args.toString()}');
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setState(() {});
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}
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void _onSessionEvent(SessionEvent? args) {
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log('_onSessionEvent ${args.toString()}');
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setState(() {});
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}
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void requestReadContract() {
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final deployedContract = DeployedContract(
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ContractAbi.fromJson(
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jsonEncode(ContractDetails.readContractAbi),
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'Tether USD',
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),
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EthereumAddress.fromHex(ContractDetails.contractAddress),
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);
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_modalService!.web3App!.requestReadContract(
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deployedContract: deployedContract,
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functionName: 'balanceOf',
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rpcUrl: 'https://eth.drpc.org',
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parameters: [
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// address to read balance of
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EthereumAddress.fromHex('0x......'),
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],
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);
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}
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void requestWriteContract() {
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final deployedContract = DeployedContract(
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ContractAbi.fromJson(
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jsonEncode(ContractDetails.readContractAbi),
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'Tether USD',
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),
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EthereumAddress.fromHex(ContractDetails.contractAddress),
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);
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_modalService!.web3App!.requestWriteContract(
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deployedContract: deployedContract,
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topic: _modalService!.session!.topic,
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chainId: 'eip155:1',
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rpcUrl: 'https://eth.drpc.org',
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functionName: 'transfer',
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transaction: Transaction(
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from: EthereumAddress.fromHex(_modalService!.address!),
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),
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parameters: [
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// address to transfer to
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EthereumAddress.fromHex('0x....'),
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BigInt.from(0.0000000000001),
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],
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);
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}
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@override
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void dispose() {
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_modalService!.web3App!.onSessionConnect.unsubscribe(_onSessionConnect);
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_modalService!.web3App!.onSessionDelete.unsubscribe(_onSessionDisonnect);
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_modalService!.web3App!.onSessionEvent.unsubscribe(_onSessionEvent);
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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if (!_initialized) {
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return Center(
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child: CircularProgressIndicator(
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color: WalletConnectModalTheme.getData(context).primary100,
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),
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);
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}
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return Scaffold(
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appBar: AppBar(
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title: const Text('WalletConnectModal'),
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),
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body: Center(
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child: Column(
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children: [
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WalletConnectModalConnect(
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service: _modalService!,
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),
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Visibility(
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visible: _modalService!.isConnected,
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child: ElevatedButton(
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onPressed: () async {
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final account = _modalService!
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.session!.namespaces['polkadot']!.accounts.last;
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final address = account.split(":").last;
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final result = await _modalService!.web3App!.request(
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topic: _modalService!.session!.topic,
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chainId: 'polkadot:91b171bb158e2d3848fa23a9f1c25182',
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request: SessionRequestParams(
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method: 'polkadot_signMessage',
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params: {
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'address': address,
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'message': 'This is an example message',
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},
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),
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);
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debugPrint('result $result');
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},
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child: const Text('polkadot_signMessage'),
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),
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),
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],
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),
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),
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);
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}
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}

‎example/sign/lib/solana_sample.dart‎

Lines changed: 38 additions & 2 deletions
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@@ -1,6 +1,9 @@
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import 'dart:convert';
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import 'dart:developer';
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// ignore: depend_on_referenced_packages
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import 'package:bs58/bs58.dart';
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import 'package:flutter/material.dart';
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import 'package:walletconnect_flutter_dapp/utils/crypto/contract.dart';
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import 'package:walletconnect_flutter_dapp/utils/dart_defines.dart';
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void _onSessionConnect(SessionConnect? args) {
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log('_onSessionConnect ${jsonEncode(args?.session.toJson())}');
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setState(() {});
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}
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void _onSessionDisonnect(SessionDelete? args) {
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log('_onSessionDisonnect ${args.toString()}');
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setState(() {});
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}
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void _onSessionEvent(SessionEvent? args) {
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log('_onSessionEvent ${args.toString()}');
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setState(() {});
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}
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void requestReadContract() {
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title: const Text('WalletConnectModal'),
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),
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body: Center(
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child: WalletConnectModalConnect(
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service: _modalService!,
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child: Column(
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children: [
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WalletConnectModalConnect(
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service: _modalService!,
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),
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const SizedBox.square(dimension: 10),
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Visibility(
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visible: _modalService!.isConnected,
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child: ElevatedButton(
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onPressed: () async {
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final account = _modalService!
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.session!.namespaces['solana']!.accounts.last;
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final address = account.split(":").last;
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final bytes = utf8.encode('This is an example message');
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final message = base58.encode(bytes);
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final result = await _modalService!.web3App!.request(
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topic: _modalService!.session!.topic,
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chainId: 'solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp',
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request: SessionRequestParams(
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method: 'solana_signMessage',
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params: {
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'pubkey': address,
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'message': message,
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},
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),
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);
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debugPrint('result $result');
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},
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child: const Text('solana_signMessage'),
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),
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),
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],
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),
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),
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);

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