Technologies Experiences Contribute

Technologies Experiences Contribute

Question Loading...

Providers

1. What is a provider in NestJS?

Level: Expert | Frequency: High

2. What are the different forms of custom provider syntax in NestJS?

Level: Expert | Frequency: High

3. What are provider scopes in NestJS and when would you change the default?

Level: Expert | Frequency: High

4. How do you resolve a circular dependency between two providers in NestJS?

Level: Expert | Frequency: High

5. How does NestJS handle async providers and what problem do they solve?

Level: Expert | Frequency: High

6. What is the shorthand provider syntax in NestJS and what does it expand to?

Level: Expert | Frequency: High

7. Walk through all four custom provider types: useClass, useValue, useFactory, useExisting.

Level: Expert | Frequency: High

8. How does an async provider work in NestJS and what guarantees does it give?

Level: Expert | Frequency: High

9. What is the difference between useExisting and useClass when aliasing a provider in NestJS?

Level: Expert | Frequency: High

10. How do you make a provider accessible across the entire module graph using ModuleRef.get() with strict: false?

Level: Expert | Frequency: High

11. How do you create a multi-provider pattern in NestJS to inject multiple implementations for the same token?

Level: Expert | Frequency: High

All Topics

BasicsModulesDecoratorsControllersDependency InjectionProvidersArchitectureRequest LifecycleMiddlewareGuardsInterceptorsPipesFiltersException HandlingAPI DesignGraphQLDatabase and ORMMicroservicesAuthentication and Authorization,Interceptors