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API reference

NestJS API reference

Modules, dependency injection and decorators for Node.js

Last updated 1 November 2026

Identifiers: 62
With full guides: 0
Types: 6

Topics covered

Controllers
Providers
Modules
Guards
Pipes
Testing

Class

Name	What it does
`NestFactory`	Class
`ValidationPipe`	Class
`ParseIntPipe`	Class
`Logger`	Class
`Reflector`	Class
`ConfigModule`	Class
`JwtModule`	Class
`TypeOrmModule`	Class
`Test`	Class

Interface

Name	What it does
`NestModule`	Interface
`CanActivate`	Interface
`NestInterceptor`	Interface
`PipeTransform`	Interface
`ExceptionFilter`	Interface
`OnModuleInit`	Interface
`OnModuleDestroy`	Interface
`MiddlewareConsumer`	Interface
`ExecutionContext`	Interface

Decorator

Name	What it does
`@Module`	Decorator
`@Controller`	Decorator
`@Injectable`	Decorator
`@Get`	Decorator
`@Post`	Decorator
`@Put`	Decorator
`@Patch`	Decorator
`@Delete`	Decorator
`@Body`	Decorator
`@Param`	Decorator
`@Query`	Decorator
`@Headers`	Decorator
`@Req`	Decorator
`@Res`	Decorator
`@UseGuards`	Decorator
`@UseInterceptors`	Decorator
`@UsePipes`	Decorator
`@UseFilters`	Decorator
`@Catch`	Decorator
`@Inject`	Decorator
`@Global`	Decorator
`@Optional`	Decorator
`@Sse`	Decorator
`@WebSocketGateway`	Decorator
`@SubscribeMessage`	Decorator

Command

Name	What it does
`nest new`	Command
`nest generate`	Command
`nest build`	Command
`nest start`	Command
`nest info`	Command

Concept

Name	What it does
`Dependency injection`	Concept
`Providers`	Concept
`Guards`	Concept
`Interceptors`	Concept
`Pipes`	Concept
`Exception filters`	Concept
`Middleware`	Concept
`Request lifecycle`	Concept
`Dynamic modules`	Concept
`Microservices`	Concept

Error

Name	What it does
`HttpException`	Error
`NotFoundException`	Error
`BadRequestException`	Error
`UnauthorizedException`	Error

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