[Solved] What does a response transformation interceptor in NestJS primarily do? — Ans: Modify the data before sending it back to the client | NestJS

NestJS - Interceptors

What does a response transformation interceptor in NestJS primarily do?

AModify the data before sending it back to the client

BChange the request headers before processing

CHandle database connections automatically

DLog incoming requests to the console

Step-by-Step Solution

Solution:

Step 1: Understand the role of interceptors in NestJS
Interceptors can modify or transform the response data before it is sent to the client.
Step 2: Identify what response transformation means
It means changing the outgoing data, not the request or other unrelated tasks.
Final Answer:
Modify the data before sending it back to the client -> Option A
Quick Check:
Response transformation = Modify data [OK]

Quick Trick: Response interceptors change outgoing data only [OK]

Common Mistakes:

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What does a response transformation interceptor in NestJS primarily do?