app.js

// Acquiring Dependencies-
const express = require('express');
const bodyParser = require('body-parser');
const cookieParser = require('cookie-parser');
const mongoose = require('mongoose');
const dotenv = require('dotenv');

const PORT = process.env.PORT || 3000;
const connectDB = require('./config/db');

// Setting up the app middlewares and the ejs view engine-
const app = express();

app.locals.moment = require('moment');

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

// When in development mode then only require the dotenv module
if (process.env.NODE_ENV !== 'production') {
	dotenv.config({ path: './.env' });
}

// Connecting to Mongo Database using ODM Mongoose-
connectDB();
mongoose.set('useCreateIndex', true);

// router for the requests from home page
app.use(require('./routes/index.router'));

// Router for user login and sign in
app.use(require('./routes/user.router'));

// router for post and search related urls
app.use(require('./routes/post.router'));

// routing to 404 in case of unavilable urls.
app.use('*', (req, res) => {
	res.render('404', {
		isAuthenticated: !!req.user,
	});
});

// Launching the server on port 3000 in development mode-
app.listen(PORT, () => {
	// eslint-disable-next-line no-console
	console.log(`Server started on port: ${PORT}`);
});