NestJS - Guards
Which NestJS decorator is used to apply a JWT authentication guard to a controller method?
Which NestJS decorator is used to apply a JWT authentication guard to a controller method?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Recall how guards are applied in NestJS
Guards are applied using the @UseGuards() decorator.Step 2: Confirm the correct decorator for JWT guard
The JWT guard class is passed inside @UseGuards(), e.g., @UseGuards(JwtAuthGuard).Final Answer:
@UseGuards() -> Option BQuick Check:
Apply guard = @UseGuards() [OK]
Quick Trick: Use @UseGuards() to apply any guard in NestJS [OK]
Common Mistakes:
- Using non-existent decorators like @JwtAuth()
- Confusing @AuthGuard() as a decorator
- Assuming @JwtGuard() exists
Master "Guards" in NestJS
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