Webhook Delivery.
Build reliable webhook delivery for asynchronous ABIS event notification.
Webhooks push events to clients when they occur rather than requiring polling. For ABIS, webhooks notify clients of risk score changes, detected threats, or async analysis completion.
Reliability is critical: implement at-least-once delivery with idempotent event handling. Queue events persistently, retry failed deliveries with exponential backoff, and provide delivery status visibility.
Security considerations: sign webhook payloads so clients can verify authenticity, use HTTPS endpoints only, and implement IP allowlisting recommendations for clients.
EVENT QUEUE
Persistently queue events before delivery. Survives process restarts and temporary failures.
DELIVERY RETRY
Exponential backoff for failed deliveries. Maximum attempts before dead-letter queue.
SIGNATURE VALIDATION
HMAC signature on payloads. Clients verify events came from legitimate source.
DELIVERY STATUS
Track delivery attempts and outcomes. Dashboard for monitoring and debugging.