Why GraphQL fits NestJS architecture - Quick Recap

Recall & Review

beginner

What is GraphQL in simple terms?

GraphQL is a way to ask for exactly the data you want from a server, like ordering a custom meal instead of a fixed menu.

beginner

How does NestJS structure help with GraphQL?

NestJS uses modules and decorators that organize code clearly, making it easy to add GraphQL resolvers and schemas in a clean way.

intermediate

Why is type safety important in NestJS with GraphQL?

Type safety means the code checks data types before running, which helps catch mistakes early. NestJS and GraphQL both use TypeScript, so they work well together to keep code safe.

intermediate

What role do decorators play in integrating GraphQL with NestJS?

Decorators in NestJS mark classes and methods to define GraphQL queries and mutations, making the code easy to read and maintain.

beginner

How does GraphQL improve API flexibility in NestJS?

GraphQL lets clients ask for only the data they need, reducing extra data transfer. NestJS’s modular design makes it easy to build flexible APIs using GraphQL.

What does GraphQL allow clients to do in a NestJS app?

A Only get fixed data sets

B Request exactly the data they need

C Send data without validation

D Bypass NestJS modules

GraphQL lets clients specify exactly what data they want, unlike fixed REST endpoints.

Which NestJS feature helps organize GraphQL code clearly?

A Global variables

B Class inheritance only

C Inline styles

D Modules and decorators

Modules and decorators help keep GraphQL code organized and easy to maintain.

Why is using TypeScript important when combining NestJS and GraphQL?

A It provides type safety to catch errors early

B It removes all types for flexibility

C It slows down the app

D It disables decorators

TypeScript helps catch type errors before running the app, improving reliability.

What do decorators in NestJS do for GraphQL?

A Automatically generate UI

B Hide code from the compiler

C Define queries and mutations clearly

D Replace TypeScript types

Decorators mark methods and classes to define GraphQL operations in a readable way.

How does GraphQL improve API efficiency in NestJS?

A By sending only requested data

B By sending all data every time

C By disabling caching

D By ignoring client requests

GraphQL lets clients ask for only the data they need, reducing unnecessary data transfer.

Explain why GraphQL fits well with NestJS architecture.

Think about how NestJS organizes code and how GraphQL lets clients ask for data.

Describe how decorators help integrate GraphQL in a NestJS app.

Focus on what decorators do in NestJS for GraphQL.