[Solved] Which of the following is the correct way to manually invalidate a cache entry in a REST API? — Ans: Send a DELETE request to the cache endpoint | Rest API

Rest API - Caching Strategies

Which of the following is the correct way to manually invalidate a cache entry in a REST API?

ASend a PUT request to update cached data

BSend a GET request to the cache endpoint

CSend a POST request to retrieve cached data

DSend a DELETE request to the cache endpoint

Step-by-Step Solution

Solution:

Step 1: Identify HTTP method for deletion
DELETE requests are used to remove resources, including cache entries.
Step 2: Understand other methods
GET retrieves data, POST creates, and PUT updates; none remove cache.
Final Answer:
Send a DELETE request to the cache endpoint -> Option D
Quick Check:
DELETE removes cache entry manually [OK]

Quick Trick: DELETE method removes resources like cache entries [OK]

Common Mistakes:

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Which of the following is the correct way to manually invalidate a cache entry in a REST API?