Return a custom header for an operation that had already been completed and is now being replayed

[kimsagro1]

In the article Idempotency keys @ Crunchy they discuss returning a header to indicate that an operation that had already been completed and is now being replayed

Idempotency-Replay: true is set for an operation that had already been completed and is now being replayed.

Is this possible to implement in this library?

[ikyriak]

Hello @kimsagro1,

Thank you for your suggestion. Yes, this can be implemented in the IdempotentAPI library.
We could use the IdempotencyReplay response header as a default to match the existing IdempotencyKey. These names are configurable for each use case.

[ikyriak]

Hello @kimsagro1,
I have implemented your suggestion to return a header to identify the cached response (replay).
Can you give it a try by using the following prerelease versions?

• IdempotentAPI v2.7.0-issue-85-01
• IdempotentAPI.MinimalAPI v3.3.0-issue-85-01

[kimsagro1]

Thanks @ikyriak, just tested and it works well 🥳