Routes & Decorators

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You want a class to handle incoming HTTP requests for the path /users. Which decorator turns the class into a controller and registers that path prefix?

javascript

import { Controller, Get } from '@nestjs/common';

@Controller('users')
export class UsersController {
  @Get() // resolves to GET /users
  findAll(): string {
    return 'all users';
  }
}

A@Injectable('users')

B@Route('users')

C@Module('users')

D@Controller('users')

Which decorator maps a handler method to an HTTP POST request?

javascript

import { Controller, Post, Body } from '@nestjs/common';

@Controller('users')
export class UsersController {
  @Post() // POST /users
  create(@Body() body: unknown): string {
    return 'user created';
  }
}

A@Create()

B@HttpPost()

C@Method('POST')

D@Post()

Given a route GET /users/:id, how do you read the id segment inside the handler?

javascript

import { Controller, Get, Param } from '@nestjs/common';

@Controller('users')
export class UsersController {
  @Get(':id') // GET /users/42
  findOne(@Param('id') id: string): string {
    return `user ${id}`;
  }
}

A@Param('id') id: string

B@Body('id') id: string

C@Query('id') id: string

D@Header('id') id: string

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