5 results
2026-04-27
Webhook
Retry
Idempotency
Ordering
X-RR-Delivery
Designing resends, ordering, and idempotency
What counts as success, the retry rules (1 min, 10 min, 1 h, four attempts), ordering and lost events, and dropping duplicates by X-RR-Delivery.
2026-04-27
Webhook
Registration
Endpoint
Event subscription
Test send
How to register a Webhook
Register a webhook in the developer portal or through the API, choose events that are actually sent, run a test send, and change, pause or delete a webhook.
2026-04-27
Webhook
Monitoring
Delivery log
Incident response
Monitoring and handling failures
Read a webhook's active flag, last delivery time and delivery log, notice when it has switched itself off, recover, and fill the gap from the API.
2026-04-27
Webhook
Events
API
receipt.created
order.created
Webhook overview
Which webhook events are actually sent, what the request and signature headers look like, how duplicates, order and lost events behave, and when to use the API.
2026-04-27
Webhook
Signature verification
HMAC
X-RR-Signature
Security
Signature verification and security
How X-RR-Signature is computed, verification code for Node.js, Python and C#, guarding against replays, and how to replace a webhook secret.