Render react components in rust
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.babelrc Initial commit Apr 27, 2018


Build react components with wasm modules (currently only with rust).

Using react-wasm-bridge in your project


Install rust nightly and set up a new rust library. Make sure you set the crate-type to "cdylib" and add both wasm-bindgen and react-wasm-bridge as dependencies.

Your module should export a function called render that takes two parameters: state and factory.

pub fn render(state: &State, factory: &Builder) -> JsValue {

state is an object that holds the component props. You'll use factory to generate elements and return a root elem (details TBD).

Build the module (cargo +nightly build --target wasm32-unknown-unknown) and run it through wasm-bindgen (wasm-bindgen target/wasm32-unknown-unknown/$(MODE)/hello.wasm --out-dir . or similar).


Add react-wasm-bridge to your react project. Then load your wasm module and pass it to the <ReactWasmBridge/> component as the module prop. Any other props will be passed to the underlying rust module into its render function (strings and numbers only).

Building the library

To build a transpiled version of the library, make sure you have all of these things:

  • yarn
  • rust nightly
  • wasm-bindgen

and run make. The transpiled version will be output into dist/.

Building the examples

Run make examples and it'll build all of them. Or just go into each example directory to make them individually.

Going faster

By default, the examples build in debug mode. Use make run MODE=release and it'll build in release mode. If you've already built it, you'll have to make clean or it won't rebuild.