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https://github.com/RootSoft/walletconnect-dart-sdk

Open protocol for connecting dApps to mobile wallets with QR code scanning or deep linking.
https://github.com/RootSoft/walletconnect-dart-sdk

Last synced: 9 days ago
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Open protocol for connecting dApps to mobile wallets with QR code scanning or deep linking.

Host: GitHub
URL: https://github.com/RootSoft/walletconnect-dart-sdk
Owner: RootSoft
License: mit
Created: 2021-10-12T10:51:05.000Z (about 3 years ago)
Default Branch: master
Last Pushed: 2023-02-28T03:07:39.000Z (over 1 year ago)
Last Synced: 2024-08-05T08:08:50.763Z (3 months ago)
Language: Dart
Size: 252 KB
Stars: 102
Watchers: 4
Forks: 61
Open Issues: 38
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE

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[![pub.dev][pub-dev-shield]][pub-dev-url]

[![Effective Dart][effective-dart-shield]][effective-dart-url]

[![Stars][stars-shield]][stars-url]

[![Issues][issues-shield]][issues-url]

[![MIT License][license-shield]][license-url]

WalletConnect is an open source protocol for connecting decentralised applications to mobile wallets

with QR code scanning or deep linking. A user can interact securely with any Dapp from their mobile

phone, making WalletConnect wallets a safer choice compared to desktop or browser extension wallets.

## Introduction

WalletConnect connects mobile & web applications to supported mobile wallets. The WalletConnect session is started by scanning a QR code (desktop) or by clicking an application deep link (mobile).

WalletConnect-Dart-SDK is a community SDK and port of the official WalletConnect-monorepo.

WalletConnect-Dart currently supports:

* Algorand

* Ethereum

You can easily add your own network by extending from `WalletConnectProvider` and implementing the required methods using `sendCustomRequest`.

An example from Binance Smart Chain can be found [here](https://docs.binance.org/walletconnect.html).

For more information regarding the implementation, check out `EthereumWalletConnectProvider` and `AlgorandWalletConnectProvider`.

**WalletConnect lets you build:**

- Decentralized web applications and display QR codes with [qr_flutter](https://pub.dev/packages/qr_flutter)

- Mobile dApps with deep linking using [url_launcher](https://pub.dev/packages/url_launcher)

- Cross-platform wallets

Once installed, you can simply connect your application to a wallet.

```dart

// Create a connector

final connector = WalletConnect(

    bridge: 'https://bridge.walletconnect.org',

    clientMeta: PeerMeta(

      name: 'WalletConnect',

      description: 'WalletConnect Developer App',

      url: 'https://walletconnect.org',

      icons: [

        'https://gblobscdn.gitbook.com/spaces%2F-LJJeCjcLrr53DcT1Ml7%2Favatar.png?alt=media'

      ],

    ),

);

```

## Usage

### Dapps

**Initiate connection**

```dart

// Create a connector

final connector = WalletConnect(

    bridge: 'https://bridge.walletconnect.org',

    clientMeta: PeerMeta(

      name: 'WalletConnect',

      description: 'WalletConnect Developer App',

      url: 'https://walletconnect.org',

      icons: [

        'https://gblobscdn.gitbook.com/spaces%2F-LJJeCjcLrr53DcT1Ml7%2Favatar.png?alt=media'

      ],

    ),

);

// Subscribe to events

connector.on('connect', (session) => print(session));

connector.on('session_update', (payload) => print(payload));

connector.on('disconnect', (session) => print(session));

// Create a new session

if (!connector.connected) {

    final session = await connector.createSession(

        chainId: 4160,

        onDisplayUri: (uri) => print(uri),

    );

}

```

**Sign transaction**

```dart

final sender = Address.fromAlgorandAddress(address: session.accounts[0]);

// Fetch the suggested transaction params

final params = await algorand.getSuggestedTransactionParams();

// Build the transaction

final tx = await (PaymentTransactionBuilder()

  ..sender = sender

  ..noteText = 'Signed with WalletConnect'

  ..amount = Algo.toMicroAlgos(0.0001)

  ..receiver = sender

  ..suggestedParams = params)

    .build();

// Sign the transaction

final signedBytes = await provider.signTransaction(

    tx.toBytes(),

    params: {

    'message': 'Optional description message',

    },

);

// Broadcast the transaction

final txId = await algorand.sendRawTransactions(

    signedBytes,

    waitForConfirmation: true,

);

// Kill the session

connector.killSession();

```

### Wallets

**Initiate connection**

```dart

// Create a connector

final connector = WalletConnect(

    uri: 'wc:8a5e5bdc-a0e4-47...TJRNmhWJmoxdFo6UDk2WlhaOyQ5N0U=',

    clientMeta: PeerMeta(

      name: 'WalletConnect',

      description: 'WalletConnect Developer App',

      url: 'https://walletconnect.org',

      icons: [

        'https://gblobscdn.gitbook.com/spaces%2F-LJJeCjcLrr53DcT1Ml7%2Favatar.png?alt=media'

      ],

    ),

);

// Subscribe to events

connector.on('connect', (session) => print(session));

connector.on('session_request', (payload) => print(payload));

connector.on('disconnect', (session) => print(session));

```

**Manage connection**

```dart

// Approve session

await connector.approveSession(chainId: 4160, accounts: ['0x4292...931B3']);

// Reject session

await connector.rejectSession(message: 'Optional error message');

// Update session

await connector.updateSession(SessionStatus(chainId: 4000, accounts: ['0x4292...931B3']));

```

**Kill session**

```dart

await connector.killSession();

```

## Changelog

Please see [CHANGELOG](CHANGELOG.md) for more information on what has changed recently.

## Contributing & Pull Requests

Feel free to send pull requests.

Please see [CONTRIBUTING](.github/CONTRIBUTING.md) for details.

## Credits

- [Tomas Verhelst](https://github.com/rootsoft)

- [Tom Friml](https://github.com/3ph)

- [juampiq6](https://github.com/juampiq6)  

- [All Contributors](../../contributors)

## License

The MIT License (MIT). Please see [License File](LICENSE.md) for more information.

[pub-dev-shield]: https://img.shields.io/pub/v/walletconnect_dart?style=for-the-badge

[pub-dev-url]: https://pub.dev/packages/walletconnect_dart

[effective-dart-shield]: https://img.shields.io/badge/style-effective_dart-40c4ff.svg?style=for-the-badge

[effective-dart-url]: https://github.com/tenhobi/effective_dart

[stars-shield]: https://img.shields.io/github/stars/rootsoft/walletconnect-dart-sdk.svg?style=for-the-badge&logo=github&colorB=deeppink&label=stars

[stars-url]: https://packagist.org/packages/rootsoft/walletconnect-dart-sdk

[issues-shield]: https://img.shields.io/github/issues/rootsoft/walletconnect-dart-sdk.svg?style=for-the-badge

[issues-url]: https://github.com/rootsoft/walletconnect-dart-sdk/issues

[license-shield]: https://img.shields.io/github/license/rootsoft/walletconnect-dart-sdk.svg?style=for-the-badge

[license-url]: https://github.com/RootSoft/walletconnect-dart-sdk/blob/master/LICENSE