index.js

const express = require('express');
const path = require('path');
const port = 9000;

const db = require('./config/mongoose');
const Contact = require('./models/Contact');
const app = express();

app.set('view engine', 'ejs');
app.set('views', path.join(__dirname, 'views'));
app.use(express.urlencoded());
app.use(express.static('assets'));



var contactList = [
    {
        name: "Aalok",
        phone: "111423423"
    },
    {
        name: "Tony Stark",
        phone: "1234567890"
    },
    {
        name: "Coding Ninjas",
        phone: "12131321321"
    }
]

app.get('/practice', function(req, res){
    return res.render('practice', {
        title: "Let us play with ejs"
    });
});


app.get('/', function(req, res){

    Contact.find({} , function(err , Contacts){
        if(err){
            console.log("error fetching contacts in db");

        }
        return res.render('home',{
            title: "Contact List",
            contact_list: Contacts
        });
    });
});
app.post('/create-contact', function(req, res){
    
    // contactList.push(req.body);
    Contact.create({
        name:req.body.name,
        phone:req.body.phone
    } , function (err, newContact) { 
        if(err){
            console.log("error in creating a contact" );
            return;
        }
        console.log("********" , newContact);
        return res.redirect('back');
     });
    
    // return res.redirect('/');

});

app.listen(port, function(err){
    if (err) {
        console.log("Error in running the server", err);
    }
    console.log('Yup!My Server is running on Port', port);
})


app.get('/delete-contact/', function(req, res){
    let id = req.query.id;

    //find the contact in the db using id and delete it
    Contact.findByIdAndDelete(id , function(err){
        if(err){
            console.log("error in deleting an object from database");
            return;
        }
        return res.redirect('back');
    })

    
});