One unified webhook can handle WhatsApp, Instagram, and Messenger messages together

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Developers integrating Meta's three messaging platforms — WhatsApp, Instagram Direct, and Messenger — typically must maintain separate APIs, credentials, and webhook parsers for each. A normalization approach collapses this into a single endpoint and webhook envelope by preserving Meta's existing payload structure and adding just two routing fields: 'provider' (identifying the channel) and 'official' (indicating the connection type). Because the envelope shape remains identical across all three channels, a single parser can handle incoming messages without any per-channel branching logic. The approach also recommends acknowledging webhooks immediately with a 200 response and processing messages asynchronously to prevent duplicate deliveries caused by Meta's retry mechanism. The pattern is platform-agnostic and can be applied to any custom integration, not just proprietary API wrappers.

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