How do you implement idempotency for POST endpoints (payment or order APIs)?

How do you implement idempotency for POST endpoints (payment or order APIs)?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: hard

标签: interviewbit, node-js, topic-specific, node.js, javascript, backend

参考答案摘要

Idempotency ensures that repeated requests produce the same result, which is critical for APIs handling payments, orders, or retries. A common approach is: Require clients to send an idempotency key w...

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