Rest API - HTTP Methods
An API must ensure that repeated identical requests do not cause additional changes. Which HTTP method should be used to update a resource to meet this idempotency requirement?
An API must ensure that repeated identical requests do not cause additional changes. Which HTTP method should be used to update a resource to meet this idempotency requirement?
hard📝 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Understand idempotency in HTTP methods
Idempotent methods produce the same result no matter how many times called.Step 2: Identify method that updates resource idempotently
PUT replaces resource fully and is idempotent; POST and PATCH are not guaranteed idempotent.Final Answer:
PUT is idempotent for updates -> Option AQuick Check:
Idempotent update method = PUT [OK]
Quick Trick: PUT is idempotent; POST and PATCH are not [OK]
Common Mistakes:
- Using POST for idempotent updates
- Confusing PATCH with PUT
- Expecting GET to update
Master "HTTP Methods" in Rest API
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