Files
hash-wallet/cw_bitcoin
03edd658a5 Cw 1539 lightning enhancements (#3400)
* feat: add Lightning transaction URL support in transaction details view model

* fix: update currency selection logic in WalletAddressListViewModel and ReceivePage

* feat: integrate computed transaction amount and fee getters in TransactionDetailsViewModel, refactor CopyWrapper logic in TransactionDetailsModal

* refactor: apply lint rules

* refactor: apply lint rules and improve LNURL handling with new methods for withdrawal requests and error checks

* auto-reformat

* fix: receive_page regression

* fix: Withdraw lightning to other btc wallet gives LN address

* chore: update .lock files [skip ci]

---------

Co-authored-by: Robert Malikowski <malikowskirobert@gmail.com>
Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>
2026-07-17 17:49:17 +03:00
..
2026-03-11 04:26:57 +02:00
2026-07-14 12:50:19 +02:00

cw_bitcoin

Bitcoin-family Electrum wallet implementation used by Cake Wallet (BTC, LTC and derivatives).

Features

  • Electrum client and wallet with address/UTXO management and snapshots.
  • Derivation via BIP‑39; receive/change chains with per-coin configs.
  • Create/sign/broadcast transactions; PSBT helpers and payjoin support.
  • Transaction history, priorities, and size-based fee calculations.
  • Hardware wallet support for BTC/LTC.

Getting started

Use the module via app services (see bitcoin_wallet_service.dart, litecoin_wallet_service.dart). Ensure Electrum nodes are configured for the target coin.

final wallet = await BitcoinWallet.create(
  mnemonic: '...',
  password: 'secret',
  walletInfo: walletInfo,
  unspentCoinsInfo: unspentCoinsBox,
  encryptionFileUtils: encryption,
);

Usage

Send BTC with medium priority:

final feeRate = wallet.feeRate(BitcoinTransactionPriority.medium);
final pending = await wallet.createTransaction(
  outputs: [BitcoinTransactionOutput(address: 'bc1...', amount: 50000)],
  feeRate: feeRate,
);
final txHash = await pending.commit();

See lib/ for wallet/services, PSBT, and payjoin utilities.