Express_Crud_Example/server.js

const express = require('express');
const app = express();
const bodyParser = require('body-parser');
const res = require('express/lib/response');
const MongoClient = require('mongodb').MongoClient
const mongoDb = 'mongodb://192.168.0.252:27017'

/* View Engine */
app.set('view engine', 'ejs');

/* Style */
app.use(express.static(__dirname + '/public'));


/*Mongo Connection*/
MongoClient.connect(mongoDb, (err, client) => {
    if (err) return console.error(err);
    console.log('Connected to Database');
    const db = client.db('crud');
    const quotesCollection = db.collection('quotes');


    /* Express requests */
    app.use(bodyParser.urlencoded({ extended: true }));
    app.use(bodyParser.json());

    /* Creating the Server*/
    app.listen(4000, function () {
        console.log('listening on 4000');
    })

    //Send to my index.html
    //app.get('/', (req, res) => {
    //   res.sendFile(__dirname + '/index.html');
    //})

    /* Create */
    app.post('/quotes', (req, res) => {
        quotesCollection.insertOne(req.body)
            .then(result => {
                console.log(result);
                res.redirect('/');
            })
            .catch(error => console.error(error))
    })

    /* READ */
    app.get('/', (req, res) => {
        const cursor = db.collection('quotes').find().toArray()
            .then(result => {
                console.log(result)
                /* Ejs view engine*/
                res.render('index.ejs', { quotes: result });
            })
            .catch(err => console.error(err))


    })

    /* Update */
    app.put('/quotes', (req, res) => {
        quotesCollection.findOneAndUpdate(
            { name: 'Marcus' },
            {
                $set: {
                    name: req.body.name,
                    quotes: req.body.quotes
                }
            },
            {
                upsert: true
            }
        )
            .then(result => res.json('Success'))
            .catch(error => console.error(error))
    })

})