server.js

console.log('May node be with ou!');

const express = require('express');
const app = express();
const bodyParser = require('body-parser');
const MongoClient = require('mongodb').MongoClient;
var db;

MongoClient.connect('mongodb://Mytestuser:mytestuserpass@ds231245.mlab.com:31245/some-favorite-famous-quotes', (err, database) => {
    if (err) return console.log(err);
    db = database;
    //start the server
    app.listen(3000, ()=> {
        console.log('listening on 3000');
    })
})

app.set('view engine', 'ejs')
app.use(bodyParser.urlencoded({extended: true}))
app.use(bodyParser.json())
app.use(express.static('public'))

app.get('/',  (req, res) => {
    //res.send('Hello World$$$')
    //Note: __dirname is directory that contains the JavaScript source code. Try logging it and see what you get!
    //res.sendFile(__dirname + '/index.html')
    
    var cursor = db.collection('quotes').find().toArray((err, result)=>{
        if (err) return console.log(err)
        res.render('index.ejs', {quotes: result})
    })
    //console.log(cursor)
})

app.post('/quotes', (req, res) => {
    //console.log(req.body)
    db.collection('quotes').save(req.body, (err, result)=> {
       if (err) return console.log(err)
        console.log('saved to database')
        res.redirect('/')
   })
})

app.put('/quotes', (req, res) =>{
    db.collection('quotes')
    .findOneAndUpdate(
        {name: 'Yoda'},
        {$set: {
            name: req.body.name, 
            quote: req.body.quote} },
        {sort: {_id:-1}, 
            upsert: true},
        (err, result) => {
            if (err) return res.send(err)
            res.send(result)
        })
})

app.delete('/quotes', (req, res) => {
    db.collection('quotes').findOneAndDelete({name: req.body.name},
    (err, result) => {
        if (err) return res.send(500, err)
        res.send({message: 'A quote was deleted'})
    })
})