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Open protocol for connecting decentralised applications to mobile wallets with QR code scanning or deep linking.

pub.dev Effective Dart Stars Issues MIT License

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.

⚠️ At the moment, only Algorand is supported!

WalletConnect lets you build:

  • Decentralized web applications and display QR codes with qr_flutter
  • Mobile dApps with deep linking using url_launcher
  • Cross-platform wallets

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

// 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

// 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

// Set a default walletconnect provider
connector.setDefaultProvider(AlgorandWCProvider(connector));

// Sign the transaction
final txBytes = Encoder.encodeMessagePack(transaction.toMessagePack());
final signedBytes = await connector.signTransaction(
    txBytes,
    params: {
      'message': 'Optional description message',
    },
);

Wallets #

Initiate connection

// 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

// 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

await connector.killSession();

Changelog #

Please see CHANGELOG for more information on what has changed recently.

Contributing & Pull Requests #

Feel free to send pull requests.

Please see CONTRIBUTING for details.

Credits #

License #

The MIT License (MIT). Please see License File for more information.

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Publisher

verified publisherkotapp.io

Open protocol for connecting decentralised applications to mobile wallets with QR code scanning or deep linking.

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License

unknown (license)

Dependencies

convert, cryptography, json_annotation, stack_trace, uuid, web_socket_channel

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