· about 3 hours ago· Dev.to
Idempotency Keys: The API Pattern That Prevents Duplicate Charges (and Worse)
Network requests fail. Timeouts happen. Clients retry. And without idempotency keys, a single payment request can become three charges. Idempotency keys are one of those API patterns that's easy to overlook until something goes wrong in production. Here's how they work, when to use them, and how to
#cloud-computing#api-design#idempotency-keys#payment-processing