[Solved] What will happen if a PATCH request is sent with an empty JSON body {} to update a resource? — Ans: The resource will remain unchanged and the server may return 204 No Content. | Rest API

Rest API - HTTP Methods

What will happen if a PATCH request is sent with an empty JSON body {} to update a resource?

AThe resource will be replaced with an empty object.

BThe resource will remain unchanged and the server may return 204 No Content.

CThe server will return a 400 Bad Request error.

DThe resource will be deleted.

Step-by-Step Solution

Solution:

Step 1: Consider PATCH with empty body
Empty JSON means no fields to update, so resource stays the same.
Step 2: Server response to no changes
Server usually returns 204 No Content to indicate success with no changes.
Final Answer:
The resource will remain unchanged and the server may return 204 No Content. -> Option B
Quick Check:
Empty PATCH body = no change [OK]

Quick Trick: Empty PATCH body means no update, expect 204 [OK]

Common Mistakes:

Master "HTTP Methods" in Rest API

9 interactive learning modes - each teaches the same concept differently

More Rest API Quizzes

What will happen if a PATCH request is sent with an empty JSON body {} to update a resource?