module.exports = {
    DB: 'mongodb+srv://user%40gmail.com:%24ugar@cluster-jfgsm.mongodb.net/test?retryWrites=true'
 };

mongoose = require('mongoose'),
    config = require('./config/DB');

    const app = express();

    mongoose.Promise = global.Promise;
    mongoose.connect(config.DB,  { useNewUrlParser: true } ).then(
      () => {console.log('Database is connected') },
      err => { console.log('Can not connect to the database'+ err)}
    );

"scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e",
    "serve": "nodemon server.js"
  },

const dbName = 'your db name';
const dbUser = 'your db username';
const dbPassword = 'your db user password';

const MONGODB_URI = `mongodb://${dbUser}:${dbPassword}@ds047207.mlab.com:47207/${dbName}`;

mongodb+srv://user@gmail.com:$ugar@cluster-jfgsm.mongodb.net/test?retryWrites=true

const DB_USER = 'user';
const PASSWORD = encodeURIComponent('hello@123');
const DB_URL = `mongodb://${DB_USER}:${PASSWORD}@ds331735.mlab.com:31772/any_db`;