[Solved] Which of the following is the correct way to create a JWT authentication guard class in NestJS? — Ans: export class JwtAuthGuard extends AuthGuard('jwt') {} | NestJS

NestJS - Guards

Which of the following is the correct way to create a JWT authentication guard class in NestJS?

Aexport class JwtAuthGuard implements AuthGuard('jwt') {}

Bexport class JwtAuthGuard extends AuthGuard('jwt') {}

Cexport function JwtAuthGuard() { return AuthGuard('jwt'); }

Dexport const JwtAuthGuard = new AuthGuard('jwt');

Step-by-Step Solution

Solution:

Step 1: Understand how to extend AuthGuard
In NestJS, guards extend the AuthGuard class with the strategy name.
Step 2: Identify correct syntax for class extension
Correct syntax is: export class JwtAuthGuard extends AuthGuard('jwt') {}.
Final Answer:
export class JwtAuthGuard extends AuthGuard('jwt') {} -> Option B
Quick Check:
Extend AuthGuard('jwt') with class [OK]

Quick Trick: Extend AuthGuard('jwt') to create JWT guard class [OK]

Common Mistakes:

Master "Guards" in NestJS

9 interactive learning modes - each teaches the same concept differently

More NestJS Quizzes

Which of the following is the correct way to create a JWT authentication guard class in NestJS?