Glossary · Phase 8 · APIs
Idempotency key
A unique id a client sends with a request so that retrying it can't make the server do the work twice.
Try it now
Each wait doubles. Without jitter, a thousand clients retry at the same instant and knock the service over again, so real code randomizes each delay.
Learn it properly
Rate limits, retries and idempotency · Keep an API up under load and make retries safe. About 40 minutes.
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