Controllers

Controllers in Nest are responsible for handling incoming requests and returning responses to the client. Nest will route incoming requests to handler functions in controller classes. We use the @Controller() decorator to create a controller class.

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

@Controller('entries')
export class EntryController {
    @Get()
    index(): Entry[] {
        const entries: Entry[] = this.entriesService.findAll();
        return entries;
    }

We’ll go over the details of routing and handling requests in the Routing and Request Handling chapter.