How Amazon Designs Idempotent APIs (TLDR)
2 min readMay 31, 2024
- Idempotency means that performing the same operation multiple times produces the same result, which is crucial for building reliable distributed systems where retries are common due to transient failures.
2. Amazon uses unique client request identifiers, often implemented as a ClientToken
in AWS APIs. When a request is made, the ClientToken
ensures that even if the operation is repeated due…