zcash

Dart packages for Zcash wallets, backed by a Rust FFI crate.

• packages/zcash: pure Dart models, node clients (Zebra, zcashd, lightwalletd) and the generated lightwalletd protobuf types.
• packages/zcash_flutter: dart:ffi bindings and build hooks over packages/zcash_flutter/native/zcash-ffi, with a Flutter example app and device check under example/.
• packages/zcash_cli: unpublished developer CLI over zcash_flutter.

Build and test

dart pub get
dart run melos bootstrap
dart run melos run analyze
dart run melos run test

cd packages/zcash_flutter/native/zcash-ffi
cargo test --release                 # default features
cargo test --release --all-features
cargo clippy --all-targets --all-features

Live suites

The suites in packages/zcash_flutter/test/integration skip unless enabled. They run a regtest chain from local binaries:

export ZEBRA_INTEGRATION=1 LIGHTWALLETD_INTEGRATION=1
export ZEBRA_BIN=/path/to/zebrad              # zebrad 6.2.2
export LIGHTWALLETD_BIN=/path/to/lightwalletd # lightwalletd 0.5.2
export ZCASH_FFI_LIB=/path/to/libzcash_ffi.dylib
export ZCASH_SAPLING_SPEND_PARAMS=/path/to/sapling-spend.params
export ZCASH_SAPLING_OUTPUT_PARAMS=/path/to/sapling-output.params
cd packages/zcash_flutter && dart test -j 1 test/integration/zebra_ironwood_live_test.dart

Build ZCASH_FFI_LIB with cargo build --release --features "orchard-tx-build orchard-note-discovery sapling-spend-build". The Sapling parameters are the concatenated sapling-spend-{1..5}.params from the wagyu-zcash-parameters-{1..5} crates (sha256 8e48ffd2…c13) and sapling-output-1.params from wagyu-zcash-parameters-6 (sha256 2f0ebbcb…0e4).