You want to hide the user's password field from all API responses using response transformation. Which approach is best in NestJS?

hard📝 state output Q15 of 15

NestJS - Interceptors

ACreate an interceptor that maps the response and deletes the password field

BModify the database schema to exclude password

CUse a middleware to filter out password from requests

DSend password as null in the controller methods

Step-by-Step Solution

Solution:

Step 1: Understand response transformation goal
We want to remove sensitive info from outgoing responses, not database or requests.
Step 2: Choose best NestJS method
Interceptors can transform responses globally, ideal for removing password fields before sending.
Step 3: Evaluate other options
Modifying DB schema or middleware won't affect response data; setting password null in controllers is repetitive.
Final Answer:
Create an interceptor that maps the response and deletes the password field -> Option A
Quick Check:
Use interceptor to hide sensitive response data [OK]

Quick Trick: Use interceptor to remove sensitive fields from responses [OK]

Common Mistakes:

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