This is a little demonstration of Rust compiling to WASM, and using Cap'n Proto messages as a high-bandwidth communication channel between the Rust/WASM code and JavaScript code.

• Rust (currently a nightly)

• Cap'n Proto libraries:

  • capnproto-rust
  • capnp-ts

• Rustup & Cargo
• cargo-wasm
• capnp tool
• Yarn or NPM
• Make

• Your browser of choice supporting JavaScript and WASM

# 1. Install the Rust nightly.
rustup toolchain install nightly

# 2. Install & setup cargo-wasm.
cargo install cargo-wasm
cargo wasm setup

# 3. Clone the repository.
git clone [email protected]:couchand/rust-wasm-capnproto-example.git
cd rust-wasm-capnproto-example

# 4. Install JavaScript dependencies.
yarn

# 5. Build the project.
make

# 6. Pull it up in your browser.
yarn start

Read the code & build config, there's only like 200 lines of code.

• killercup/wasm-experiments
• Cap'n Proto

I'm new to Rust, so the code's not great. Please submit a PR!