index.js

var mongoose = require('mongoose');
var express = require('express');
var bodyParser = require('body-parser');

var app = express();


app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended:true}));
//app.use(mongoose);

mongoose.connect('mongodb://beacondb:beacondb@nodecluster-shard-00-00-ldy3x.mongodb.net:27017,nodecluster-shard-00-01-ldy3x.mongodb.net:27017,nodecluster-shard-00-02-ldy3x.mongodb.net:27017/test?ssl=true&replicaSet=nodecluster-shard-0&authSource=admin&retryWrites=true',{
    useNewUrlParser:true
});

const schema = mongoose.Schema({
    discount:Number,
    name: String,
    photo:String,
    price:Number,
    region:String
});


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

app.post('/addData',(req,res)=>{

     const product = new Product({
        discount:req.body.discount,
        name: req.body.name,
        photo:req.body.photo,
        price:req.body.price,
        region:req.body.region
     });

     product.save().then(result => { 
        
        res.status(201).json({
            message:"created successfully",
            createdProduct:product
        });

     }).catch(err => {
         
        res.status(500).json({error:err});
     })

});

app.get('/getData', (req,res,next) =>{

    Product.find().then(result =>
    {
        res.status(200).json(result);
    }).catch(error =>{
       res.status(500).json({err:error});
    })
});

app.listen(9800, () => {
    console.log("server is running at 9800");
});

app.get('/getproductdata/:region',(req,res) =>{

var type = req.params.region;

Product.find({"region":type}).then(result =>{

    res.status(200).json(result);
}).catch(error =>{
    res.status(500).json({err:error});
});


});