NestJS - Interceptors
Which of the following is the correct way to apply the CacheInterceptor to a controller method in NestJS?
Which of the following is the correct way to apply the CacheInterceptor to a controller method in NestJS?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Recall how to apply interceptors in NestJS
Interceptors are applied using the@UseInterceptors()decorator above methods or controllers.Step 2: Check each option
Only @UseInterceptors(CacheInterceptor) above the method uses the correct decorator syntax. Options B, C, and D are invalid or do not exist in NestJS.Final Answer:
@UseInterceptors(CacheInterceptor) above the method -> Option CQuick Check:
UseInterceptors decorator = A [OK]
Quick Trick: Use @UseInterceptors(CacheInterceptor) to apply caching [OK]
Common Mistakes:
- Using non-existent @Cacheable decorator
- Trying to inject interceptor in constructor
- Passing interceptor as method parameter
Master "Interceptors" in NestJS
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