Mongo DB connect with node js

 const express=require("express");

const bodyParser=require('body-parser');

const morgan=require('morgan');

const mongoose=require('mongoose');

const app=express();

app.use(morgan('tiny'));

const productSchema=mongoose.schema({

    name:String,

    image:String,

    countInStock:Number

})

const Product=mongoose.model('Product',productSchema);

require('dotenv/config');

const api=process.env.API_URL;

// Middleware

app.use(bodyParser.json());

app.get(`${api}/products`,(req,res)=>{

    // res.send("hello API world!");

    const product={

        id:1,

        name:'Anand Chaudhary',

        email:'apchaudhary8126@gmail.com'

    }

    res.send(product);

})

app.post(`${api}/products`,(req,res)=>{

    // res.send("hello API world!");

    const newProduct =req.body;

    console.log(newProduct);

    res.send(newProduct);

})

mongoose.connect(process.env.CONNECTION_STRING,{

    useNewUrlParser:true,

    useUnifiedTopology:true,

    dbName:'eshop-database'

})

.then(()=>{

    console.log("The database Connection is ready now......");

})

.catch((err)=> {

    console.log(err)

})

app.listen(3000,()=>{

 

    // console.log(product);

    // console.log("Now start my API is ",api);

    console.log("The Server is running http://localhost:4000");

})