Todo WASI

Introduction

This Repository is a little POC on experimenting with WebAssembly/WASI on Backend side.

Due some great experiences with Leptos (WebAssembly/Frontend), this POC contains a Rest API Server based on minimal dependencies, storing data in a Postgres DB. The code itself does not contain a lot off error checks, validations or security gates.

The Docker image of the Web Server is based on wasmedge/slim:0.13.5 with a total size of 64.26 MB.

The WebAssembly Server size build on release is 2 MB.

Execution

The application can build and run inside Docker as Docker composition with:

docker compose up

In case you have a Rust development environment with cargo configured for build a target WASI:

cargo build --target wasm32-wasip1

or for the release mode:

cargo build --target wasm32-wasip1 --profile release

The Server itself can be started when you have installed wasmedge with:

chmod +x target/wasm32-wasip1/debug/todo-wasi.wasm
wasmedge target/wasm32-wasip1/debug/todo-wasi.wasm

In case you have IntelliJ, you can execute the HTTP requests found in the folder /http like

GET http://127.0.0.1:8080/api/todo
Accept: application/json