# AyrisTech WhatsApp Gateway

A simple WhatsApp Gateway worker using `whatsapp-web.js` and `express`.

## Features
- QR Code generation for authentication
- Message sending via HTTP POST
- Multi-user support via LocalAuth

## Setup
1. Clone the repository
2. Run `npm install`
3. Copy `.env.example` to `.env` and configure your settings
4. Run `npm start`

## API
### Send Message
**POST** `/send-message`
```json
{
  "secret": "your_webhook_secret",
  "userId": "unique_user_id",
  "to": "phone_number",
  "message": "your_message"
}
```