You are implementing input validation in a REST API. Which practice best utilizes the 422 Unprocessable Entity status code to handle invalid user data submissions?
hard📝 Application Q8 of 15
Rest API - HTTP Status Codes
You are implementing input validation in a REST API. Which practice best utilizes the 422 Unprocessable Entity status code to handle invalid user data submissions?
AReturn 422 with detailed error messages specifying which fields failed validation
BReturn 422 with a generic error message without field details
CReturn 400 Bad Request for all invalid inputs regardless of validation type
DReturn 500 Internal Server Error when validation fails
Step-by-Step Solution
Solution:
Step 1: Understand 422 usage
422 is intended for semantic validation errors with meaningful feedback.
Step 2: Best practice for client communication
Providing detailed error messages helps clients correct specific input issues.
Final Answer:
Return 422 with detailed error messages specifying which fields failed validation -> Option A
Quick Check:
422 + detailed errors = best practice for validation [OK]
Quick Trick:Use 422 with detailed validation errors for better client feedback [OK]
Common Mistakes:
MISTAKES
Using 400 Bad Request for semantic validation errors
Returning generic error messages without details
Misusing 500 Internal Server Error for client input issues
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