Executive Summary: Ensuring zero data loss when Meta sends thousands of concurrent webhook payloads.
When you run a successful WhatsApp campaign, replies flood in. Your webhook endpoint will receive heavy concurrent traffic.
### Ingestion Architecture
Your webhook controller should do absolutely ZERO processing. Its only job is to validate the payload, save it to a queue, and return 200 OK.
```php
public function handle(Request $request)
{
// Push payload to Redis instantly
ProcessIncomingWhatsAppMessage::dispatch($request->all());
return response('OK', 200);
}
```
If your controller queries the database or calls external APIs, Meta will timeout after a few seconds and retry, causing a massive backlog and duplicated data.