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Language bindings

The internal SDK supports mobile and web platforms and uses UniFFI and wasm-bindgen to generate bindings for those targets.

Mobile bindings​

We use UniFFI to generate bindings for the mobile platforms, more specifically we publish Android and iOS libraries with Kotlin and Swift bindings, respectively. While UniFFI supports additional languages they typically lag a few releases behind the UniFFI core library.

The Android bindings are currently published on GitHub Packages in the sdk_internal repository. The Swift package is published in the sdk-swift repository.

Web bindings​

For the web bindings we use wasm-bindgen to generate a WebAssembly module that can be used in JavaScript / TypeScript. To ensure compatibility with browsers that do not support WebAssembly, we also generate a JavaScript module from the WebAssembly that can be used as a fallback.

The WebAssembly module is published on npm.

For detailed guidance on choosing between wasm-bindgen and tsify for web interoperability, see Web interoperability.