#cw_tron

TRON wallet module for Cake Wallet. Implements TRX and TRC-20 token support on top of on_chain (Tron), with transaction history and fee estimation via TronGrid.

#Features

• Connect to TRON nodes over HTTP(S) via TronProvider/TronHTTPProvider.
• Fetch TRX balance and TRC-20 token balances.
• Estimate fees using bandwidth/energy and memo fee; accounts for available account resources.
• Create and sign TRX and TRC-20 transfers (supports send-all and optional memo).
• Broadcast signed transactions.
• Load account history (TRX and TRC-20), filtering spam and TRC10-only events.
• Manage TRC-20 tokens: add/remove tokens and fetch token metadata.
• Sign/verify messages.
• Node health checks for both native and token balance endpoints.

#Getting started

Provide a TRON RPC endpoint and a TronGrid API key. Add a secrets file:

// cw_tron/lib/.secrets.g.dart   (DO NOT COMMIT)
const String tronGridApiKey = 'YOUR_TRONGRID_API_KEY';

Basic connect and sync:

final service = TronWalletService(walletInfoBox, client: TronClient(), isDirect: true);
final wallet = await service.create(TronNewWalletCredentials(name: 'My TRON', password: 'secret'));
await wallet.connectToNode(node: Node(uriRaw: 'api.trongrid.io', isSSL: true));
await wallet.startSync();
final trxBalance = wallet.balance[CryptoCurrency.trx];

#Usage

Send TRX:

final pending = await wallet.createTransaction(
  TronTransactionCredentials.single(
    address: 'T...',
    cryptoAmount: '1.5',
    currency: CryptoCurrency.trx,
  ),
);
final txHash = await pending.commit();

Add USDT (TRC-20):

final usdt = await wallet.getTronToken('TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t');
if (usdt != null) {
  await wallet.addTronToken(usdt);
}

#Additional information

• History and token queries use TronGrid; set tronGridApiKey.
• See lib/ for APIs: TronClient, TronWallet, TronWalletService, and credential types.