# Plugins
Here is a brief specification of the plugin module itself.
All loadable plugin modules need to have an `init` method.

## Backend
Backend modules get two initialization parameters: `logger` and `LMathPluginAPI`.
Feel free to use these in any way you want. Below you'll find a simple example.

```js
let logger, api;

module.exports = {
    init: (_logger, _api) => {

        logger = _logger;
        api = _api;

        logger.info('Hewwo! It is me, the new plugin!');

        api.messages.on('testMessage', (d) => {
            logger.info('Someone sent me a message! ' + d);
        });

    }
};
```

## Frontend
Frontend modules also get two parameters: `window` (the actual window object) and `LMathPluginAPI` (frontend).
jQuery and other useful things can be found like presented below.

```js
let window, api, $, jQuery;

module.exports = {
    init: (_window, _api) => {
        
        window = _window;
        api = _api;
        
        $ = window.jQuery;
        jQuery = window.jQuery;
        
        console.log('Hewwo wowld! This is the frontend side!');

        setInterval(() => api.messages.send('testMessage', Date.now()), 2000);
        
    }
}
```