Events need a reliable history.
General integration planning for verified server events. Event names, signatures and retry behaviour must come from the selected provider’s current documentation.
Live availability is subject to eligibility and processing arrangements.
Verify the prescribed payload
Use the exact raw bytes, signature method and secret handling documented by the actual provider. Invalid signatures must not change payment state.
Accept durably, then acknowledge
Do not acknowledge an event before the durable record or queue has accepted it. Plan for downstream failures and recovery.
Expect repetition and ordering differences
Deduplicate by provider event identity and make business effects idempotent. Define permitted transitions so a late event cannot regress a confirmed outcome.
Keep an investigation trail
Store merchant/environment, object reference, verification result and processing outcome with minimal personal data. Reconcile missing or uncertain outcomes using authoritative provider records.
What is implemented here
There is no webhook endpoint, signing secret, persistent event processor or provider integration in this website. The demo does not prove live event-safety controls.