Posts in Reliability.
Rate limits are a two-sided problem in webhook systems. Here's how to handle 429s as a sender and protect your endpoint as a receiver, with practical patterns and code.
Retries handle transient failures. Dead letter queues handle everything else. How to build a DLQ that stores, alerts on, and replays failed webhook events.
Webhook signature verification in plain terms: how HMAC-SHA256 works, a 10-line implementation, and the three mistakes that break it silently.
A practical, empowering checklist to prevent duplicate side effects and keep webhook consumers safe in production.
Retries help, but they are only one part of webhook reliability.