The WebAssembly wrapper for c2pa-rs that powers c2pa-web, built with wasm-bindgen. While these bindings can be used directly, most users will prefer the convenience of c2pa-web.
npm install @contentauth/c2pa-wasm
Ensure the repo-wide prerequisites are installed.:
See the c2pa-js README for details.
Then, install all of the following prerequisites:
The minimum supported Rust version is 1.88.0.
To install Rust via rustup:
curl https://sh.rustup.rs -sSf | sh
For more information, see Install Rust.
Additionally, you must install the wasm32-unknown-unknown target:
rustup target add wasm32-unknown-unknown
The wasm-bindgen-cli provides options to tweak JavaScript generated by wasm-bingen.
For more information, see the wasm-bindgen-cli documentation.
cargo install wasm-bindgen-cli@0.2.122
The version of wasm-bindgen-cli must match the version of the wasm-bindgen dependency in Cargo.toml. A version mismatch will cause build failures with errors like "rust Wasm file schema version: X.X.X, this binary schema version: Y.Y.Y". If you encounter this, check Cargo.toml for the correct version and reinstall the CLI accordingly.
Wasm-pack is a tool for building and working with Rust-generated WebAssembly that interoperates with JavaScript.
cargo install wasm-pack@0.13.1
For more information, see the wasm-pack documentation.
To build the library:
nx build c2pa-wasm
This will execute the commands defined in the nx-wasm-bindgen executor to produce the final output in the pkg/ directory.
The library relies on wasm-pack to run its tests. As a general principle, the majority of test coverage will come from c2pa-web's test suite.
To run the tests:
nx test c2pa-wasm