[Solved] Given this server logic:if request.headers.get('If-None-Match') == current_etag: return 304 else: return 200 with data and ETagWhat will the server respond if the client sends If-None-Match:... | Rest API

Rest API - Caching Strategies

Given this server logic:

if request.headers.get('If-None-Match') == current_etag:
    return 304
else:
    return 200 with data and ETag

What will the server respond if the client sends If-None-Match: "xyz789" but current_etag is "abc123"?

A200 OK with data and ETag

B304 Not Modified

C400 Bad Request

D500 Internal Server Error

Step-by-Step Solution

Solution:

Step 1: Compare client's ETag with server's current ETag
The client sends "xyz789" but the server's current ETag is "abc123", so they do not match.
Step 2: Determine server response based on mismatch
Since ETags differ, the server sends full data with status 200 and the current ETag.
Final Answer:
200 OK with data and ETag -> Option A
Quick Check:
ETags differ -> send data [OK]

Quick Trick: If ETags differ, server sends full data (200) [OK]

Common Mistakes:

MISTAKES

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