This is a Heroku buildpack for Rust and wasm-pack with support for cargo and rustup. Features include:

• Caching of builds between deployments.
• Automatic updates to the latest stable Rust by default.
• Support for export so that other buildpacks can access the Rust toolchain.
• Support for compiling Rust-based extensions for projects written in other languages.

• example-messagefeed uses Wasm to serialize Solana program instructions

To deploy an application to Heroku, we recommend installing the [Heroku CLI][].

If you're creating a new Heroku application, cd to the directory containing your code, and run:

heroku create --buildpack https://github.com/solana-labs/heroku-buildpack-rust-wasm-pack.git

This will only work if your application has a Cargo.toml and uses git. If you want to set a particular name for application, see heroku create --help first.

To use this as the buildpack for an existing application, run:

heroku buildpacks:add --index 1 https://github.com/solana-labs/heroku-buildpack-rust-wasm-pack.git