[Solved] Why is it important to distinguish between 401 Unauthorized and 403 Forbidden in REST API design? — Ans: Because 401 indicates missing or invalid authentication, while 403 indicates... | Rest API

Rest API - HTTP Status Codes

Why is it important to distinguish between 401 Unauthorized and 403 Forbidden in REST API design?

ABecause 401 is for client errors, 403 is for server errors

BBecause both mean the same and can be used interchangeably

CBecause 401 means resource not found, 403 means server error

DBecause 401 indicates missing or invalid authentication, while 403 indicates lack of permission despite authentication

Step-by-Step Solution

Solution:

Step 1: Define 401 Unauthorized meaning
401 means client must authenticate or provide valid credentials.
Step 2: Define 403 Forbidden meaning
403 means client is authenticated but not allowed to access resource.
Final Answer:
401 = auth needed, 403 = no permission despite auth -> Option D
Quick Check:
401 vs 403 distinction is authentication vs authorization [OK]

Quick Trick: 401 = auth needed, 403 = access denied after auth [OK]

Common Mistakes:

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Why is it important to distinguish between 401 Unauthorized and 403 Forbidden in REST API design?