[Solved] How do you enable caching globally in a NestJS application using CacheInterceptor? — Ans: By adding CacheInterceptor to the app module's providers and using... | NestJS

NestJS - Interceptors

How do you enable caching globally in a NestJS application using CacheInterceptor?

ABy adding CacheInterceptor to the app module's providers and using app.useGlobalInterceptors()

BBy importing CacheInterceptor in every controller manually

CBy setting cache: true in the main.ts bootstrap function

DBy decorating each method with @Cacheable() decorator

Step-by-Step Solution

Solution:

Step 1: Identify global interceptor setup
Global interceptors are set by providing them in the app module and calling app.useGlobalInterceptors().
Step 2: Eliminate incorrect options
By importing CacheInterceptor in every controller manually requires manual imports per controller, not global. By setting cache: true in the main.ts bootstrap function is invalid syntax. By decorating each method with @Cacheable() decorator uses a non-existent decorator.
Final Answer:
By adding CacheInterceptor to the app module's providers and using app.useGlobalInterceptors() -> Option A
Quick Check:
Global caching setup = useGlobalInterceptors(CacheInterceptor) [OK]

Quick Trick: Use app.useGlobalInterceptors(new CacheInterceptor()) to enable global caching [OK]

Common Mistakes:

Master "Interceptors" in NestJS

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How do you enable caching globally in a NestJS application using CacheInterceptor?