Files
hash-wallet/cw_bitcoin
SerhiiandGitHub 6378e929b6 CW-1157-Use-correct-derivation-paths-for-other-address-types (#2825)
* feat: use bitcoin standard derivation paths per address type

* add support for Electrum derivation type in wallet

* fix merge conflict

* Use segwit HD for key export and simplify _hdFor

* skip derivation chooser for standard scan paths

* add legacy and P2SH derivation paths
2026-03-26 22:46:08 +01:00
..
2026-03-11 04:26:57 +02:00
2026-03-17 15:19:06 +01:00
2026-03-17 15:19:06 +01:00

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.