uniffi-bindgen-react-native

UniFFI is a multi-language bindings generator for Rust.

This project, uniffi-bindgen-react-native, is a uniFFI bindings generator for using Rust from React Native.

It provides tooling to generate:

• Typescript and JSI C++ to call Rust from Typescript and back again
• a Turbo-Module that installs the bindings into a running React Native library.

If you're ready to start, then start with a step-by-step tutorial to make a Rust turbo-module.

If you're new to uniFFI, then the UniFFI user guide or the UniFFI examples are interesting places to start.

Why uniffi-bindgen-react-native?

• Spend more time writing Typescript and Rust
• Full compatibility with uniffi-rs
• Your Rust SDK is portable across multiple languages.

Why not, say WASM, via wasm-bindgen?

WASM is an amazing virtual machine however:

• your Rust crate must make alternative arrangements if it needs things that the virtual machine does not offer:
  • threads and
  • file access.
• you need to maintain a separate FFI (this is a temporary issue, solvable by something like uniFFI).

Who is using uniffi-bindgen-react-native?

• @unomed/react-native-matrix-sdk
• ChessTiles on iOS "uniffi-bindgen-react-native lets us run our performance critical solution search algorithm and business logic in Rust, while rapidly prototying the UI with React Native"

Prior art and related projects

• cawfree/react-native-webassembly

Contributing

If this tool sounds interesting to you, please help us develop it! You can:

• View the contributor guidelines.
• File or work on issues here in GitHub.
• Join discussions in the #uniffi-bindgen-js:matrix.org room on Matrix.

Code of Conduct

This project is governed by Mozilla's Community Participation Guidelines.

Funding

uniffi-bindgen-react-native is led by James Hugman, with deep collaboration from the Filament engineering team, funded by Filament and Mozilla.

License

MPL-2.0