Architecture · interview question
A teammate submits shaky idempotency code. Which review comment is the strongest?
Multiple choiceMediumchapter-18-curatedpremiumarchitectureidempotency
Answer and explanation
Correct answer
A. Make the rule clearer and easier to explain. Design jobs so a duplicate message or retry does not produce duplicate side effects.
Why
The best review comment anchors the change to readability, correctness, and future maintenance. Assuming jobs run exactly once is a common systems mistake that surfaces only under pressure.
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