Rest API using MEN (MongoDB,ExpressJs and NodeJs)

conbined_sample_code.js

import express from 'express'
import mongoose from "mongoose"
import Cors from 'cors'

var app = express()
var port = process.env.PORT || 8080 

app.use(express.json())
app.use(Cors())

var Connection_url = 'mongodb+srv://Rest-API_lmas:<password>@cluster0.gklyj.mongodb.net/<dbname>?retryWrites=true&w=majority'

mongoose.connect(Connection_url, {
    useNewUrlParser: true,
    useCreateIndex: true,
    useUnifiedTopology: true
})

app.get("/", function (req, res){
    res.send( "Welcome to Tutorial of REST API using MongoDB, ExpressJS and NodeJS");
})

app.listen(port)