The WebAssembly Gateway Interface (WAGI) for Go: a Go+Wazero+WASI Hello World.
This is a simple example of how to implement a tiny HTTP service using WebAssembly and WASI as the interface between the host server and the guest WebAssembly module.
The WebAssembly module writes to stdout and reads from stdin, interacts with environment variables and read command-line arguments; but really, these interaction with the environment are captured and redirected to HTTP Requests/Responses.
This project is not intended to be complete, and it is meant only for demo and educational purposes.
Start the server with a Wasm (WASI) module.
go run main/main.go examples/hello.wasm
Your Wasm module is now responding at http://localhost:8080/
The default example under examples/hello.wasm has been compiled from
examples/hello.c using the wasi-sdk
The default example can be invoked without arguments:
$ curl 'http://localhost:8080/'
Hello world
Or you can optionally pass a query string to customize the 'hello' message:
$ curl 'http://localhost:8080/?name=Wazero!'
Hello Wazero!