java programs

express session login system using node express mongodb Dependencies used -  File -  Server.js file -  const express = require ( 'express' ); const mongoose = require ( 'mongoose' ); const bcrypt = require ( 'bcrypt' ) const session = require ( 'express-session' ) const mongoDBSession = require ( 'connect-mongodb-session' )( session ); const bodyparser = require ( 'body-parser' ); const userModel = require ( './models/user' ) const student = require ( './student' ) const app = express ();   const mongoURI = 'mongodb://localhost:27017/testsix'     mongoose . connect ( 'mongodb://localhost:27017/testsix' ,{ useNewUrlParser: true , useUnifiedTopology: true , useCreateIndex: true , }) . then (() => console . log ( "database is connected" )) . catch (( err ) => console . log ( err ))   app . set ( 'view engine' , 'ejs' )   app . use ( bodyparser . urlencod...