build1 publisher
Meta's three-second webhook window turns a slow WhatsApp handler into duplicate replies
A dev.to guide's answer is to verify the signature, enqueue durably and reply inside the window, with the duplicate check pushed into the worker on wamid, because a deliberate 503 invites Meta to redeliver.
Publishers:dev.to
Reality
- Evidence38
- Adoption
- Insufficient
- Hype gap+28
- Incentives25
- Confidence52