Simple WASM extension written in Rust

Steps to build it

Install rust, if not already installed:

$ curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

Install wasm32 target, if not already installed:

$ rustup target add wasm32-unknown-unknown

Build the extension:

$ make build

A file named plugin.wasm was created in the current directory.