NestJS - Authentication
What will be the result of this NestJS controller method when called with a valid JWT token?
```typescript
@UseGuards(AuthGuard('jwt'))
@Get('data')
getData() {
return { data: 'Secure data' };
}
```
What will be the result of this NestJS controller method when called with a valid JWT token? ```typescript @UseGuards(AuthGuard('jwt')) @Get('data') getData() { return { data: 'Secure data' }; } ```
medium📝 Predict Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Confirm valid token bypasses guard
With a valid JWT token, the AuthGuard allows access to the method.Step 2: Identify method return value
The method returns the object { data: 'Secure data' } as response.Final Answer:
Returns { data: 'Secure data' } -> Option CQuick Check:
Valid token returns data object [OK]
Quick Trick: Valid JWT token grants access and returns data [OK]
Common Mistakes:
- Expecting error with valid token
- Thinking it returns empty object
- Assuming server error occurs
Master "Authentication" in NestJS
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