Rest API - HTTP Methods
An API uses DELETE to remove a resource and POST to create it. To make the creation idempotent, what strategy can be applied?
An API uses DELETE to remove a resource and POST to create it. To make the creation idempotent, what strategy can be applied?
hard📝 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Understand POST non-idempotency
POST creates new resources and can cause duplicates if repeated.Step 2: Apply idempotency strategy
Using a unique client-generated ID in POST allows the server to recognize duplicates and avoid creating multiple resources.Final Answer:
Use POST with a unique client-generated ID to avoid duplicates -> Option BQuick Check:
Idempotent POST = unique client ID [OK]
Quick Trick: Add unique ID in POST to make creation idempotent [OK]
Common Mistakes:
- Switching POST to GET incorrectly
- Sending DELETE twice unnecessarily
- Using POST without identifiers
Master "HTTP Methods" in Rest API
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