[Solved] What is the main purpose of the JWT strategy in a NestJS application? — Ans: To verify user identity by checking the JWT token in requests | NestJS

NestJS - Authentication

What is the main purpose of the JWT strategy in a NestJS application?

ATo encrypt user passwords before saving to the database

BTo manage database connections securely

CTo verify user identity by checking the JWT token in requests

DTo serve static files like images and CSS

Step-by-Step Solution

Solution:

Step 1: Understand JWT strategy role
The JWT strategy is used to check the user's identity by verifying the token sent with requests.
Step 2: Compare options with JWT purpose
Only To verify user identity by checking the JWT token in requests matches this purpose; others relate to different concerns like encryption or static files.
Final Answer:
To verify user identity by checking the JWT token in requests -> Option C
Quick Check:
JWT strategy = verify token [OK]

Quick Trick: JWT strategy always verifies tokens to identify users [OK]

Common Mistakes:

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What is the main purpose of the JWT strategy in a NestJS application?