Browser-only engineering sample

Webhook Reliability Lab.

Simulate event validation, temporary failure, retry, and duplicate-event protection. Nothing is sent to a server. This is a teaching/demo simulation, not a hosted webhook service or past client delivery.

← Back to services

Event controls

Event ID

JSON payload

Try processing the same ID twice; then try failure followed by retry. Change the JSON to an invalid value to test validation.

System status

Processed IDs

0

Duplicate deliveries

0

Transient failures

0

Rejected payloads

0

Ready. This session stores state only in memory.

Delivery log

No events processed yet.

Model assumptions: one sequential in-memory consumer; fail-once button simulates a transient processing error. This does not simulate network concurrency, persistence, cryptographic authentication, or production queues.