JavaScript

weather/
├── app.js             the implementation
├── wit/
│   └── world.wit      the interface — defines your tools
├── package.json
├── noorle.yaml        metadata, permissions, credentials
├── build.sh           what `noorle plugin build` runs
├── prepare.sh         what `noorle plugin prepare` runs
├── .env.example
└── dist/
    └── plugin.wasm    build output

package example:weather;

world weather-component {
    /// Check the current weather for a location
    export check-weather: func(location: string, unit: string) -> string;
}

import { getEnvironment } from "wasi:cli/environment@0.2.7";

export async function checkWeather(location, unit) {
  const envVars = getEnvironment();
  // ...
  const response = await fetch(requestUrl, {
    headers: { "User-Agent": "noorle/1.0" },
  });
  return JSON.stringify(result);
}

{
  "name": "weather",
  "version": "0.1.0",
  "type": "module",
  "main": "app.js",
  "dependencies": {
    "@bytecodealliance/componentize-js": "0.19.1",
    "@bytecodealliance/jco": "1.15.0"
  },
  "engines": {
    "node": ">=18.0.0"
  }
}

schema_version: "1.0"

metadata:
  name: weather
  description: "Weather information plugin using OpenWeatherMap API"
  author: "Noorle Team"
  tags:
    - weather
    - api

permissions:
  network:
    allow:
      - host: "api.openweathermap.org"
  environment:
    allow:
      - key: OPENWEATHER_API_KEY

noorle plugin build

npm install
wkg wit fetch
npx jco componentize -w wit/ -o dist/plugin.wasm app.js

wasmtime run --wasi http --env OPENWEATHER_API_KEY=your_api_key_here \
  --invoke 'check-weather("Austin", "metric")' dist/plugin.wasm

noorle login
noorle plugin publish