app.js

const express = require('express'),
methodOverride = require('method-override'),
expressSanitizer = require('express-sanitizer');
bodyParser = require('body-parser'),
mongoose = require('mongoose'),
app = express();

// APP CONFIG
mongoose.connect("mongodb://localhost/restful_blog_app", { useNewUrlParser: true });
mongoose.set('useFindAndModify', false);
app.set('view engine', 'ejs');
app.use(express.static('public'));
app.use(bodyParser.urlencoded({extended: true}));
app.use(expressSanitizer());
app.use(methodOverride('_method'));

// MONGOOSE MODEL CONFIG
const blogSchema = mongoose.Schema({
    title: String,
    image: String,
    body: String,
    created: {type: Date, default: Date.now}
});
let Blog = mongoose.model("Blog", blogSchema);

// RESTFUL ROUTES

app.get('/', (req, res) => {
    res.redirect('/blogs');
})

// INDEX ROUTE
app.get('/blogs', (req, res) => {
    Blog.find({}, (err, data) => {
        if(err) {
            console.log(err);
        } else {
            res.render('index', {blogs: data});
        }
    });
});

// NEW ROUTE
app.get('/blogs/new', (req, res) => {
    res.render('new');
})

// CREATE ROUTE
app.post('/blogs', (req, res) => {
    req.body.blog.body = req.sanitize(req.body.blog.body);
    Blog.create(req.body.blog, (err, data) => {
        if(err) {
            res.render('new');
        } else {
            res.redirect('/blogs');
        }
    });
});

// SHOW ROUTE
app.get('/blogs/:id', (req, res) => {
    Blog.findById(req.params.id, (err, data) => {
        if(err) {
            res.redirect('/blogs');
        } else {
            res.render("show", {blog: data});
        }
    });
});

// EDIT ROUTE
app.get('/blogs/:id/edit', (req, res) => {
    Blog.findById(req.params.id, (err, data) => {
        if(err) {
            res.redirect('/blogs');
        } else {
            res.render('edit', {blog: data});
        }
    });
});

// UPDATE ROUTE
app.put('/blogs/:id', (req, res) => {
    req.body.blog.body = req.sanitize(req.body.blog.body);
    Blog.findByIdAndUpdate(req.params.id, req.body.blog, (err, data) => {
        if(err) {
            res.redirect('/blogs');
        } else {
            res.redirect('/blogs/' + req.params.id);
        }
    });
});

// DELETE ROUTE 
app.delete('/blogs/:id', (req, res) => {
    Blog.findByIdAndRemove(req.params.id, (err) => {
        if(err) {
            res.redirect('/blogs');
        } else {
            res.redirect('/blogs');
        }
    })
}) 

app.listen(5000, () => {
    console.log('Server is running on port 5000...');
})