The Criticality of Idempotent API Endpoints

Network connections drop. Clients retry. If your payment or data creation endpoints aren't idempotent, you will inevitably create duplicate records or charge customers multiple times.

Idempotency Keys

Every write request sent to an Achtrex API requires a unique Idempotency-Key header. We store these temporarily; if a request is retried due to a dropped connection, we simply return the cached successful response without executing the logic twice.