Deep Dive: WhatsApp Integration with Meta (Production Architecture)

Most WhatsApp integration guides stop at “send your first message.” That’s the easy part. The real challenge begins when you try to run it in production, wherein tokens expire, webhooks retry, assets change, and external systems evolve without warning. What looks like a simple API integration is actually a distributed system built on OAuth, event delivery, and long-lived credentials. This guide breaks down what it actually takes to build a production-grade WhatsApp integration with Meta. Not just how the flow works, but how to make it reliable, secure, and resilient under real-world conditions. Read full blog... Exei