3 results
2026-04-27 Webhook Signature verification HMAC Security Replay attack
Signature verification and security

Explains how ReceiptRoller Webhook HMAC-SHA256 signature verification works, sample verification code (Node.js / Python / C#), replay-attack countermeasures, and how to manage secrets safely.

2026-04-27 Webhook Monitoring Alerts Dead letter Incident response
Monitoring and handling failures

Explains how to read the ReceiptRoller Webhook delivery history, the metrics to monitor and how to design alerts, redelivering dead letters, and common failure patterns and recovery procedures.

2026-04-27 Webhook Resend Idempotency Ordering Retry
Designing resends, ordering, and idempotency

Explains ReceiptRoller's Webhook resend policy, why delivery order is not guaranteed, implementing idempotency with event_id, handling dead letters, and common anti-patterns.