Files
hash-wallet/cw_bitcoin
3b100eae33 CW1612: AnyPay Service Layer (#3516)
* fix android CI

* feat: add anypay core models, parser and routing engine

* feat: add anypay resolver, anypay service and wallet switch service

* refactor: route the send page payment flow through anypay service

* fix: show message when there's no swap providers for a pair and reset the trade guard on dismissal

* refactor: merge the swap from network and send to network decision pages together and clean up anypay widgets

* feat: reapply deep links to a currently open send flow and register the solana scheme

* feat: add support for zcash address detection to anypay and other minor fixes

* refactor: remove trailing icon

* feat: hide swap flow for sp and mweb addresses

* feat: enhance zcash address detection and deeplink handling

* fix: pin bitcoin_base

* refactor: Move the anypay decision navigation out of the send page and address minor review comments

* refactor: Move the anypay decision navigation out of the send page and address minor review comments

* feat: handle exception in switch service and mvoe balance compute to call site

* refactor: combine anypay entry points to one and extract selected mode widget

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Co-authored-by: Czarek Nakamoto <cyjan@mrcyjanek.net>
2026-08-20 09:35:44 +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.