I will test duplicate reordered and retried webhook events locally

Check one local Node.js or TypeScript webhook flow before relying on retries. I reproduce six agreed scenarios across two event types, including duplicate, reordered and retried events. You receive runnable tests, fixtures, expected versus observed behavior, rerun instructions and a concise findings report.

Please message first with a sanitised runnable handler, example payloads without secrets, expected state and permitted side effects. Complete inputs are required before work starts. Delivery: seven days, with one consolidated correction round.

Production uses AI and software checks, with me accountable for the work. The sample is a fictional local order handler, not a client deployment.

This is a local behavior check, not a full integration build, security audit or load test. Production access, live payments and certification that a payment system is safe are excluded.