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# Example Plugin
A comprehensive template plugin for P2NS. Use this as a starting point when creating new plugins.
## Overview
The Example Plugin demonstrates all the key features available to P2NS plugins:
- Basic HTTP request handling
- Static file serving from `www/` directory
- API endpoints with query parameters
- Plugin lifecycle hooks (`onInit`, `onShutdown`)
- Admin panel settings integration
- Admin panel actions integration
- Using settings in handlers and frontend
## Features Demonstrated
### Admin Settings
The plugin registers four example settings that appear in the P2NS admin panel:
| Setting | Type | Description |
|---------|------|-------------|
| `exampleString` | string | Greeting prefix used in API responses |
| `exampleNumber` | number | Multiplier used in calculations (1-1000) |
| `exampleBoolean` | boolean | Toggle to include timestamps in responses |
| `exampleSelect` | select | Operation mode selector (Standard/Enhanced/Advanced) |
### Admin Actions
The plugin registers three actions callable from the admin panel:
| Action | Description |
|--------|-------------|
| **Test Action** | Demonstrates using current settings in an action |
| **Reset Data** | Clears action history and cached data |
| **Calculate** | Performs calculation using the multiplier setting |
## API Endpoints
### `GET /api/hello`
Returns a greeting message using the configured greeting prefix.
**Query Parameters:**
- `name` (optional): Name to greet (default: "World")
**Response:**
```json
{
"message": "Hello, World!",
"timestamp": "2025-01-01T00:00:00.000Z"
}
```
Note: `timestamp` is only included if `exampleBoolean` is true.
### `GET /api/info`
Returns plugin information and current settings.
**Response:**
```json
{
"plugin": "example.plugin",
"version": "1.0.0",
"description": "A comprehensive template plugin...",
"dnsReady": true,
"connectedPeers": 5,
"settings": {
"exampleString": "Hello, World!",
"exampleNumber": 42,
"exampleBoolean": false,
"exampleSelect": "option1"
}
}
```
### `GET /api/calculate`
Performs a calculation using the multiplier setting.
**Query Parameters:**
- `value` (optional): Number to multiply (default: 0)
**Response:**
```json
{
"input": 10,
"multiplier": 42,
"result": 420,
"calculation": "10 × 42 = 420"
}
```
### `GET /api/mode`
Returns the current operation mode and available modes.
**Response:**
```json
{
"mode": "option1",
"description": "Standard mode - basic functionality",
"availableModes": ["option1", "option2", "option3"]
}
```
### `GET /api/public-key`
Returns the local peer's public key.
**Response:**
```json
{
"publicKey": "abc123...",
"hasIdentity": true
}
```
### `GET /api/actions`
Returns the action history and last action result.
**Response:**
```json
{
"lastResult": { ... },
"history": [ ... ]
}
```
### `GET /api/settings`
Returns all current plugin settings.
**Response:**
```json
{
"settings": { ... },
"timestamp": "2025-01-01T00:00:00.000Z"
}
```
## File Structure
```
example.plugin/
├── config.json # Plugin configuration
├── index.js # Backend handler with API logic
├── README.md # Plugin documentation
├── app.log # Plugin log file (auto-generated)
└── www/ # Frontend files
├── index.html # Main HTML page
├── icon.svg # Plugin icon
├── manifest.json
└── css/
└── style.css
```
## Creating Your Own Plugin
1. **Copy this plugin directory** to `plugin-sites/your.domain/`
2. **Update `config.json`**:
```json
{
"name": "Your Plugin",
"version": "1.0.0",
"domain": "your.domain",
"enabled": true,
"description": "Description of your plugin",
"author": "Your Name",
"www": "www"
}
```
3. **Modify `index.js`**:
- Update the handler to serve your API endpoints
- Register your own settings in `onInit()`
- Register your own actions in `onInit()`
- Add cleanup logic in `onShutdown()` if needed
4. **Update `www/index.html`** with your frontend
5. **Restart P2NS** - your plugin will be automatically discovered
## Plugin SDK Usage
This plugin demonstrates key SDK features:
```javascript
const sdk = require('../../includes/plugins/sdk');
// Parse requests
const { path, query, method } = sdk.router.parseRequest(req);
// Send JSON responses
return sdk.router.json(res, { data: 'value' });
// Check system state
if (sdk.utils.isDNSReady()) { ... }
const peers = sdk.state.connectedPeers;
// Register settings
sdk.admin.registerSetting('key', {
type: 'string',
label: 'Label',
description: 'Description',
default: 'default value'
});
// Get settings
const value = await sdk.admin.getSetting('key', 'default');
// Register actions
sdk.admin.registerAction('actionName', async (params) => {
return { success: true, message: 'Done!' };
}, {
label: 'Action Label',
description: 'What this action does',
icon: '🚀'
});
// Logging
sdk.log.info('my.plugin', 'Message');
sdk.log.error('my.plugin', 'Error message');
```
## Related Documentation
- [Plugin System Guide](../PLUGINS.md)
- [Plugin SDK Reference](../PLUGIN_SDK.md)
- [REST API Documentation](../RESTAPI.md)
## License
MIT