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https://github.com/bitcoindevkit/bdk-ffi
Please consider this project *experimental*. But we hope to have an official release out soon.
https://github.com/bitcoindevkit/bdk-ffi
android ios jvm kotlin rust swift
Last synced: about 2 months ago
JSON representation
Please consider this project *experimental*. But we hope to have an official release out soon.
- Host: GitHub
- URL: https://github.com/bitcoindevkit/bdk-ffi
- Owner: bitcoindevkit
- License: other
- Created: 2021-06-09T01:42:53.000Z (over 3 years ago)
- Default Branch: master
- Last Pushed: 2024-07-31T21:51:10.000Z (about 2 months ago)
- Last Synced: 2024-07-31T23:22:19.484Z (about 2 months ago)
- Topics: android, ios, jvm, kotlin, rust, swift
- Language: Rust
- Homepage:
- Size: 5.25 MB
- Stars: 87
- Watchers: 11
- Forks: 36
- Open Issues: 47
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
Awesome Lists containing this project
- awesome-bdk - bdk-ffi
README
# Native language bindings for BDK
## 🚨 Warning 🚨
The `master` branch of this repository is being migrated to the [bdk 1.0 API](https://github.com/bitcoindevkit/bdk) and is incomplete. For production-ready libraries, use the [`0.31.X`](https://github.com/bitcoindevkit/bdk-ffi/tree/release/0.30) releases.
## Readme
The workspace in this repository creates the `libbdkffi` multi-language library for the Rust-based
[bdk] library from the [Bitcoin Dev Kit] project.
Each supported language and the platform(s) it's packaged for has its own directory. The Rust code in this project is in the bdk-ffi directory and is a wrapper around the [bdk] library to expose its APIs in a uniform way using the [mozilla/uniffi-rs] bindings generator for each supported target language.
## Supported target languages and platforms
The below directories (a separate repository in the case of bdk-swift) include instructions for using, building, and publishing the native language binding for [bdk] supported by this project.
| Language | Platform | Published Package | Building Documentation | API Docs |
| -------- |-----------------------|-------------------------------|------------------------|-----------------------|
| Kotlin | JVM | [bdk-jvm (Maven Central)] | [Readme bdk-jvm] | [Kotlin JVM API Docs] |
| Kotlin | Android | [bdk-android (Maven Central)] | [Readme bdk-android] | [Android API Docs] |
| Swift | iOS, macOS | [bdk-swift (GitHub)] | [Readme bdk-swift] | |
| Python | linux, macOS, Windows | [bdk-python (PyPI)] | [Readme bdk-python] | |
## Building and Testing the Libraries
If you are familiar with the build tools for the specific languages you wish to build the libraries for, you can use their normal build/test workflows. We also include some [just](https://just.systems/) files to simplify the work across different languages. If you have the just tool installed on your system, you can simply call the commands defined in the `justfile`s, for example:
```sh
cd bdk-android
just build
just offlinetests
just publishlocal
```
## Minimum Supported Rust Version (MSRV)
This library should compile with any combination of features with Rust 1.77.1.
## Contributing
To add new structs and functions, see the [UniFFI User Guide](https://mozilla.github.io/uniffi-rs/) and the [uniffi-examples](https://thunderbiscuit.github.io/uniffi-examples/) repository.
## Goals
1. Language bindings should feel idiomatic in target languages/platforms
2. Adding new targets should be easy
3. Getting up and running should be easy
4. Contributing should be easy
5. Get it right, then automate
## Using the libraries
### bdk-android
```kotlin
// build.gradle.kts
repositories {
mavenCentral()
}
dependencies {
implementation("org.bitcoindevkit:bdk-android:")
}
```
### bdk-jvm
```kotlin
// build.gradle.kts
repositories {
mavenCentral()
}
dependencies {
implementation("org.bitcoindevkit:bdk-jvm:")
}
```
_Note:_ We also publish snapshot versions of bdk-jvm and bdk-android. See the specific readmes for instructions on how to use those.
### bdk-python
```shell
pip3 install bdkpython
```
### bdk-swift
Add bdk-swift to your dependencies in XCode.
## Developing language bindings using uniffi-rs
If you are interested in better understanding the base structure we use here in order to build your own Rust-to-Kotlin/Swift/Python language bindings, check out the [uniffi-bindings-template](https://github.com/thunderbiscuit/uniffi-bindings-template) repository. We maintain it as an example and starting point for other projects that wish to leverage the tech stack used in producing the BDK language bindings.
## Verifying Signatures
Both libraries and all their corresponding artifacts are signed with a PGP key you can find in the
root of this repository. To verify the signatures follow the below steps:
1. Import the PGP key in your keyring.
```shell
# Navigate to the root of the repository and import the ./PGP-BDK-BINDINGS.asc public key
gpg --import ./PGP-BDK-BINDINGS.asc
# Alternatively, you can import the key directly from a public key server
gpg --keyserver keyserver.ubuntu.com --receive-key 2768C43E8803C6A3
# Verify that the correct key was imported
gpg --list-keys
# You should see the below output
pub ed25519 2022-08-31 [SC]
88AD93AC4589FD090FF3B8D12768C43E8803C6A3
uid [ unknown] bitcoindevkit-bindings
sub cv25519 2022-08-31 [E]
```
2. Download the binary artifacts and corresponding signature files.
- from [bdk-jvm]
- `bdk-jvm-.jar`
- `bdk-jvm-.jar.asc`
- from [bdk-android]
- `bdk-android-.aar`
- `bdk-android-.aar.asc`
3. Verify the signatures.
```shell
gpg --verify bdk-jvm-.jar.asc
gpg --verify bdk-android-.aar.asc
# you should see a "Good signature" result
gpg: Good signature from "bitcoindevkit-bindings " [unknown]
```
### PGP Metadata
Full key ID: `88AD 93AC 4589 FD09 0FF3 B8D1 2768 C43E 8803 C6A3`
Fingerprint: `2768C43E8803C6A3`
Name: `bitcoindevkit-bindings`
Email: `[email protected]`
## Thanks
This project is made possible thanks to the wonderful work by the [mozilla/uniffi-rs] team.
[Kotlin]: https://kotlinlang.org/
[Android Studio]: https://developer.android.com/studio/
[`bdk`]: https://github.com/bitcoindevkit/bdk
[`bdk-ffi`]: https://github.com/bitcoindevkit/bdk-ffi
["Getting Started (Developer)"]: https://github.com/bitcoindevkit/bdk-ffi#getting-started-developer
[bdk-jvm]: https://search.maven.org/artifact/org.bitcoindevkit/bdk-jvm/0.11.0/jar
[bdk-android]: https://search.maven.org/artifact/org.bitcoindevkit/bdk-android/0.11.0/aar
[bdk-jvm (Maven Central)]: https://central.sonatype.dev/artifact/org.bitcoindevkit/bdk-jvm/0.11.0
[bdk-android (Maven Central)]: https://central.sonatype.dev/artifact/org.bitcoindevkit/bdk-android/0.11.0
[bdk-swift (GitHub)]: https://github.com/bitcoindevkit/bdk-swift
[bdk-python (PyPI)]: https://pypi.org/project/bdkpython/
[mozilla/uniffi-rs]: https://github.com/mozilla/uniffi-rs
[bdk]: https://github.com/bitcoindevkit/bdk
[Bitcoin Dev Kit]: https://github.com/bitcoindevkit
[uniffi-rs]: https://github.com/mozilla/uniffi-rs
[Readme bdk-jvm]: https://github.com/bitcoindevkit/bdk-ffi/tree/master/bdk-jvm
[Readme bdk-android]: https://github.com/bitcoindevkit/bdk-ffi/tree/master/bdk-android
[Readme bdk-swift]: https://github.com/bitcoindevkit/bdk-swift
[Readme bdk-python]: https://github.com/bitcoindevkit/bdk-ffi/tree/master/bdk-python
[Kotlin JVM API Docs]: https://bitcoindevkit.org/jvm/
[Android API Docs]: https://bitcoindevkit.org/android/