This is a microservice that serves a single purpose: Compiling Faust code that is sent to it into WebAssembly that can then be loaded and run natively from within the web synth application. It is written in go because go is supposed to be good for this sort of thing.
A Dockerfile is provided that can run this application from scratch and has the added benefit of being containerized since we're accepting arbitrary user input here.
docker build -t ameo/faust-compiler-server .docker run -it -p 4565:4565 ameo/faust-compiler-server
The server currently has a single API endpoint: POST /compile. Simply POST a form data request to the server with a file field named "code.faust", and the server will return you the binary content of the generated wasm file in the response if everything went well. Errors get logged to stdout and return 400 or 500 response codes. Internally, it just calls the faust compiler with the uploaded file content.