Glossary: System Design Basics in Java
Idempotency key
Also written: Idempotency-Key
A unique ID the app makes for each checkout and sends in an Idempotency-Key header, so the server returns the first order for a repeat instead of creating a second.
Glossary: System Design Basics in Java
Also written: Idempotency-Key
A unique ID the app makes for each checkout and sends in an Idempotency-Key header, so the server returns the first order for a repeat instead of creating a second.