# Quick Start

### Basic Setup

```typescript
import { createWhatsAppHandler } from './whatsapp-handler';

const whatsapp = createWhatsAppHandler({
  token: 'YOUR_ACCESS_TOKEN',
  phoneNumberId: 'YOUR_PHONE_NUMBER_ID',
  webhookVerifyToken: 'YOUR_VERIFY_TOKEN'
});

// Send a message
await whatsapp.sendMessage('1234567890', 'Hello from WhatsApp!');
```

### Using Environment Variables

```typescript
import { createWhatsAppHandlerFromEnv } from './whatsapp-handler';

// Reads from process.env automatically
const whatsapp = createWhatsAppHandlerFromEnv();
```

Required environment variables:
```env
WHATSAPP_TOKEN=your_access_token
WHATSAPP_PHONE_NUMBER_ID=your_phone_number_id
WHATSAPP_WEBHOOK_VERIFY_TOKEN=your_verify_token
WHATSAPP_APP_SECRET=your_app_secret
```

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