Routing And Request Handling

Defining a Controller ,Module ,Service:

   // creating module
   nest generate module auth
   // or
   nest g mo auth

   // creating controller
   nest generate controller auth
   //or
   nest g co auth

   // creating service
   nest generate service auth
   //or
   nest g s auth

This will create module,controller,service under auth/ directory.

import { Module } from '@nestjs/common';
import { AuthController } from './auth.controller';
import { AuthService } from './auth.service';

@Module({
controllers: [AuthController],
providers: [AuthService],
})
export class AuthModule {}

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

@Controller('auth')
export class AuthController {}

import { Injectable } from '@nestjs/common';

@Injectable()
export class AuthService {}

@Controller('auth'): This decorator maps the controller to handle routes that start with /auth.

Creating Routes

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

@Controller('auth')
export class AuthController {
// Handle GET requests for /auth
@Get()
findAll() {
    //Your logics here
return 'display all values';
}

}

@Get() : This decorator is used to handle GET requests. If no argument is passed, it handles the root of the controller path (/auth). findAll() is the function that execute when /auth roue is called.