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IN NO EVENT SHALL THE AUTHORS OR +COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER +IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/README.md b/README.md new file mode 100644 index 0000000..1149044 --- /dev/null +++ b/README.md @@ -0,0 +1,84 @@ +# bdk-dart + +Dart bindings for the [Bitcoin Dev Kit (BDK)](https://bitcoindevkit.org/) wallet library. +The repo packages the generated UniFFI bindings (`lib/bdk.dart`) together with the +compiled `libbdkffi` native library so Dart and Flutter apps can work with descriptor-based +wallets, key management utilities, and blockchain backends from BDK. + +## Repository layout + +| Path | Purpose | +| ---- | ------- | +| `bdk-ffi/` | Rust sources and build scripts for the underlying `bdk-ffi` crate. | +| `lib/` | Generated Dart bindings (`bdk.dart`) produced by UniFFI-Dart. | +| `examples/` | Standalone Dart examples that exercise common workflows. | +| `test/` | Integration-style tests that cover wallet creation, persistence, and networking. | +| `bdk_demo/` | Flutter sample app you can point at mobile targets once the bindings are built. | +| `scripts/generate_bindings.sh` | Helper used to rebuild the native library and regenerate the Dart bindings. | + +## Prerequisites + +To build the bindings locally you need: + +- Dart SDK 3.2 or newer (see `pubspec.yaml`). +- Rust toolchain with `cargo` and the native targets you intend to build. +- `clang`/`lld` (or equivalent platform toolchain) for producing the shared library. +- Flutter (optional) if you plan to run `bdk_demo`. + +Make sure submodules are cloned because the Rust crate lives in `bdk-ffi/`: + +```bash +git clone --recurse-submodules https://github.com/bitcoindevkit/bdk-dart.git +cd bdk-dart +``` + +## Installation + +1. Install dependencies: + ```bash + dart pub get + ``` +2. Generate the Dart bindings and native binary: + ```bash + ./scripts/generate_bindings.sh + ``` + The script builds `bdk-ffi`, runs the local `uniffi-bindgen` wrapper, and drops the + resulting `libbdkffi.*` alongside the freshly generated `lib/bdk.dart`. +3. Make sure the produced library is discoverable at runtime. For CLI usage you can export + `LD_LIBRARY_PATH`/`DYLD_LIBRARY_PATH` or keep the binary in the same directory as your + Dart entrypoint. + +## Usage + +After generating the bindings you can run the examples or consume the package from your +own project. For instance, the `examples/network_example.dart` walkthrough shows how to: + +1. Create a new mnemonic and derive BIP84 descriptors. +2. Instantiate a wallet backed by the in-memory persister. +3. Reveal addresses and persist staged changes. +4. Optionally sync with Electrum over TLS. + +Run it with: + +```bash +dart run examples/network_example.dart +``` + +When embedding in Flutter, add a path or git dependency on this package and ensure the +native library is bundled per target platform (e.g., via `flutter_rust_bridge`-style +build steps or platform-specific build scripts). + +## Testing + +Once `lib/bdk.dart` and the native library are available you can execute the Dart test +suite, which covers wallet creation, persistence, offline behavior, and descriptor APIs: + +```bash +dart test +``` + +## License + +The Rust crate and generated bindings are dual-licensed under MIT or Apache 2.0 per the +`license = "MIT OR Apache-2.0"` entry in `Cargo.toml`. You may choose either license when +using the library in your project. \ No newline at end of file