Rest API - Advanced Patterns
What is the main purpose of using an
idempotency key in REST APIs?What is the main purpose of using an idempotency key in REST APIs?
easy📝 Conceptual Q11 of 15
Step-by-Step Solution
Solution:
Step 1: Understand idempotency key concept
An idempotency key is a unique identifier sent with a request to ensure the server processes it only once.Step 2: Identify the main purpose
This prevents duplicate actions like double payments or repeated orders if the client retries the request.Final Answer:
To prevent duplicate processing of the same request -> Option BQuick Check:
Idempotency key = prevent duplicates [OK]
Quick Trick: Idempotency keys stop repeated actions safely [OK]
Common Mistakes:
MISTAKES- Confusing idempotency key with authentication token
- Thinking it speeds up response time
- Assuming it encrypts data
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