api_directorio/src/app.controller.ts

import { Controller, Get } from '@nestjs/common';
import { AppService } from './app.service';
import { ConfigService } from '@nestjs/config';

@Controller()
export class AppController {
  constructor(private readonly appService: AppService, 
    private configservice: ConfigService
  ) {}

  @Get()
  getHello(): string {
    console.log("Todo bien", this.configservice.get("DATABASE_NAME"))
    return this.appService.getHello();
  }
}