app.js

const express           = require('express');
const exphbs            = require('express-handlebars');
const path              = require('path');
const bodyParser        = require('body-parser');
const methodOverride    = require('method-override');
const redis             = require('redis');

//Create Redis Client

let client = redis.createClient();

client.on('connect', function(){
   console.log('Connected to Redis...')
});

//Set Port
const port = 3000;

//Init app
const app = express();

//View Engine
app.engine('handlebars',exphbs({defaultLayout:'main'}));
app.set('view engine', 'handlebars');

//body-parser
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended:false}));

//methodOverride
app.use(methodOverride('_method'));

//Search Page
app.get('/',function(req,res,next){
    res.render('searchusers')
});

//Search processing
app.post('/user/search',function(req,res,next){
    let id = req.body.id;

    client.hgetall(id,function(err,obj){
        if(!obj){
            res.render('searchusers',{
                error: 'Users does not exist'
            })
        }else{
            obj.id = id;
            res.render('details',{
                user:obj
            });
        }
    })
});

//Add User Page
app.get('/user/add',function(req,res,next){
    res.render('adduser')
});

//Process Page
app.post('/user/add',function(req,res,next){

    var id = req.body.id.toString();
    var first_name = req.body.first_name.toString();
    var last_name = req.body.last_name.toString();
    var email = req.body.email.toString();
    var phone = req.body.phone.toString();

    client.hmset(id, ["first_name", first_name, "last_name", last_name, "email", email, "phone", phone], function (err, reply) {
        if(err){
            console.log(err);
        }else {
            console.log(reply);
            res.redirect('/');
        }

    });


});

// Delete User
app.delete('/user/delete/:id', function(req, res, next){
    client.del(req.params.id);
    res.redirect('/');
});

app.listen(port,function(){
    console.log('Server started on port '+port);
});