Most webhook systems start small: a POST /webhooks route, signature verification, a database write, and a retry loop. That is usually enough until traffic stops being polite. A Paystack event arrives twice. A Flutterwave notification fails while your API is down. A customer endpoint times out for a full day. Support asks for the delivery history, and all you have is an application log line.
At that point, the problem is not accepting HTTP. It is operating unreliable event traffic: retries, queues, replay, endpoint health, signing, routing, observability, and customer experience.
Convoy, Hookdeck, and Svix all help with webhooks, but they sit in different parts of the event path. Convoy fits teams that want a gateway they can run and control. Hookdeck fits teams that need to receive, route, inspect, and replay inbound events before they reach the app. Svix fits products that need to send webhooks to customers.
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