how to use uuid in backend

 Dependencies used - 

file structure - 

Server.js file - 

const express = require('express')

const {v4 : uuidv4} = require('uuid')

const mongoose = require('mongoose')

const record = require('./db')

const bodyparser = require('body-parser')

mongoose.connect('mongodb://localhost:27017/testfifteen',{ useNewUrlParser: true ,useUnifiedTopology: true})

.then(()=>console.log("db connected"))

.catch((err)=>console.log(err))

const app = express();

app.use(bodyparser.urlencoded({extended:false}))

app.set('view engine','ejs')

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

    res.render('index')

})

app.post('/index',async (req,res)=>{

    const newId = uuidv4()

    console.log(newId)

    

    const detail = {

        name : req.body.name,

        uid : newId

    }

     const data = new record(detail)

    await  data.save()

    res.redirect('/')

})

app.listen('3000')

database file

const mongoose = require('mongoose')

const recordSchema = new mongoose.Schema({

    uid : String,

    name : String

})

module.exports = mongoose.model('record',recordSchema)