[Solved] What is the main purpose of the CacheInterceptor in NestJS? — Ans: To store responses and speed up repeated requests | NestJS

NestJS - Interceptors

What is the main purpose of the CacheInterceptor in NestJS?

ATo handle authentication and authorization

BTo store responses and speed up repeated requests

CTo log all incoming requests

DTo format response data before sending

Step-by-Step Solution

Solution:

Step 1: Understand the role of CacheInterceptor
The CacheInterceptor caches HTTP responses to avoid recomputing them on repeated requests.
Step 2: Compare with other options
Logging, authentication, and formatting are handled by other interceptors or middleware, not CacheInterceptor.
Final Answer:
To store responses and speed up repeated requests -> Option B
Quick Check:
CacheInterceptor caches responses = C [OK]

Quick Trick: CacheInterceptor caches responses to speed up requests [OK]

Common Mistakes:

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What is the main purpose of the CacheInterceptor in NestJS?