@tronweb3/tronwallet-adapter-backpack

Backpack wallet adapter for Backpack Wallet browser extension.

Installation

npm install @tronweb3/tronwallet-adapter-backpack
# or
yarn add @tronweb3/tronwallet-adapter-backpack
# or
pnpm add @tronweb3/tronwallet-adapter-backpack

Usage

Basic Usage

import { BackpackAdapter } from '@tronweb3/tronwallet-adapter-backpack';

const adapter = new BackpackAdapter();

// Connect
await adapter.connect();

// Sign message
const signature = await adapter.signMessage('Hello TRON');

// Sign transaction
const signedTx = await adapter.signTransaction(transaction);

// Disconnect
await adapter.disconnect();

Event Handling

// Listen to connection events
adapter.on('connect', (address) => {
    console.log('Connected:', address);
});

adapter.on('disconnect', () => {
    console.log('Disconnected');
});

adapter.on('stateChanged', (state) => {
    console.log('State changed:', state);
});

adapter.on('error', (error) => {
    console.error('Error:', error);
});

Error Handling

import {
    WalletNotFoundError,
    WalletConnectionError,
    WalletDisconnectedError,
} from '@tronweb3/tronwallet-abstract-adapter';

try {
    await adapter.connect();
} catch (error) {
    if (error instanceof WalletNotFoundError) {
        console.error('Backpack wallet not found');
    } else if (error instanceof WalletConnectionError) {
        console.error('Connection failed:', error.message);
    }
}

Browser Support

• Chrome/Chromium-based browsers (extension)
• Firefox (extension)

Caveats

• Currently Backpack wallet only support TRON on Browser Extension wallet.
• Backpack wallet does not support multiSign.
• Backpack wallet only support Mainnet and Shasta.
• Backpack extension cannot be connected automatically after page refresh.
• Backpack extension events cannot work fine currently.

Troubleshooting

Wallet Not Detected

If the adapter cannot detect Backpack wallet:

1. Ensure Backpack browser extension is installed
2. Refresh the page after installing the extension
3. Check browser console for errors

License

MIT

Links

• Backpack Wallet
• TronWallet Adapter
• Documentation
• TRON Wallet Integration Standards