This devcontainer is configured to provide you a wasi-sdk 20.0.

1. Open this repo in devcontainer, e.g. using Github Codespaces. Type or copy/paste following commands to devcontainer's terminal.

2. Download the extism-pdk.h header file, the only required part of Extism C PDK:

wget https://raw.githubusercontent.com/extism/c-pdk/main/extism-pdk.h

1. Compile the example:

clang -o HTTPRequestingPlugin.wasm -mexec-model=reactor httpget.c

For testing purposes, you can invoke functions from Extism plugins with Extism CLI.

1. Install Extism CLI from Github releases:

wget https://github.com/extism/cli/releases/download/v0.3.4/extism-v0.3.4-linux-amd64.tar.gz
tar -xzf extism-v0.3.4-linux-amd64.tar.gz

And now you have extism binary in current folder.

2. Run httpget function from extism plugin with CLI, allowing outbound connections to all hosts:

./extism call HTTPRequestingPlugin.wasm httpget --allow-host '*' --wasi

Perform your own experiments if desired.

This devcontainer is based on ideas from dev-wasm/dev-wasm-c.

_{Created for (wannabe-awesome) list}