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52 interview questions on Nest.jsfor developers (2024)

Test your technical skills before an interview of Nest.js with 52 corrected questions. Beginner, Intermediate or Expert level.

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52 questions
Easy
10 votes400 runs0 comment

How to declare a class as a controller in Nest.js

Back-end developer
Nest
decorators
Axelat Sep 6, 2023
Easy
7 votes397 runs0 comment

What is the main responsibility of a pipe in Nest.js?

Back-end developer
Nest
pipes
Axelat Sep 6, 2023
Medium
7 votes395 runs0 comment

How to make an `ExceptionFilter` global so that it applies to your entire application in NestJS

Back-end developer
Nest
filters
Axelat Sep 6, 2023
Easy
5 votes373 runs0 comment

How to define a service or component that can be injected in Nest.js

Back-end developer
Nest
decorators
Axelat Sep 6, 2023
Easy
4 votes395 runs0 comment

Which decorator is used to associate a Guard with a route or controller in Nest?

Back-end developer
Nest
decorators
guards
Axelat Sep 6, 2023
Easy
3 votes372 runs0 comment

Nest module lifecycle methods execution order

Back-end developer
Nest
lifecycle
Axelat Sep 6, 2023
Easy
2 votes368 runs0 comment

What is the main use of the `OnModuleInit` interface in Nest.js?

Back-end developer
Nest
module
Axelat Sep 6, 2023
Easy
1 vote361 runs0 comment

Explain why you would use `forwardRef` in Nest.js.

Back-end developer
Nest
circular reference
Axelat Sep 6, 2023
Easy
1 vote358 runs0 comment

Explain the use of the @Optional() decorator in Nest.

Back-end developer
Nest
dependency injection
Axelat Sep 6, 2023
Easy
1 vote348 runs0 comment

What is the role of the `@Body()` decorator in this NestJS code snippet?

Back-end developer
Nest
decorators
Axelat Sep 6, 2023
Medium
1 vote236 runs0 comment

What is the main purpose of asynchronous providers in Nest.js?

Back-end developer
Nest
async
Axelat Sep 6, 2023
Hard
0 vote377 runs0 comment

Explain why modules are used in Nest.js

Back-end developer
Nest
modules
Axelat Sep 6, 2023
Medium
0 vote366 runs0 comment

How to make a Nest.js module global

Back-end developer
Nest
decorators
Axelat Sep 6, 2023
Medium
0 vote365 runs1 comment

What is an interceptor in Nest.js?

Back-end developer
Nest
interceptor
Axelat Sep 6, 2023
Easy
0 vote359 runs0 comment

Explain the use of the `switchToHttp` or `switchToWs` methods in a Nest.js guard or interceptor.

Back-end developer
Nest
guards
interceptors
Axelat Sep 6, 2023
Medium
0 vote358 runs0 comment

Is it advisable to store sensitive information, such as passwords, directly in an `.env` file?

Back-end developer
Nest
security
env
Axelat Sep 6, 2023
Easy
0 vote357 runs0 comment

Define the intercept method when creating a custom interceptor in Nest

Back-end developer
Nest
interceptors
Axelat Sep 6, 2023
Easy
0 vote350 runs0 comment

What happens when you declare a provider in a module's providers array, but don't add it to the exports array?

Back-end developer
Nest
providers
exports
Axelat Sep 6, 2023
Easy
0 vote344 runs0 comment

Nest.js is a framework for building efficient and scalable Node.js applications.

Back-end developer
Nest
node.js
Axelat Sep 6, 2023
Hard
0 vote136 runs0 comment

How to define a GraphQL type in Nest.js?

Back-end developer
Nest
graphql
Axelat Sep 6, 2023