server.js

//Require Modules
const http = require('http');
var url = require('url');
var path = require('path');	 
var fs = require('fs');

//Array of Mime Types
var mimeTypes = {
	"html":"text/html",
	"jpeg":"image/jpeg",
	"jpg":"image/jpg",
	"png":"image/png",
	"js":"text/javascript",
	"css":"text/css"
};

//Create Server
http.createServer(function(req,res){
	var uri =url.parse(req.url).pathname;
	var fileName = path.join(process.cwd(),unescape(uri));
	console.log('Loading' + uri);
	var stats;
	try{
		stats = fs.lstatSync(fileName);
	}
	catch (e) {
		res.witeHead(404,{'Content-type':'text/plain'});
		res.write('404 Not Found');
		res.end();
		return;
	}
	//check if its a file/directory
	if (stats.isFile()) {
		var mimeType = mimeTypes[path.extname(fileName).split(".").reverse()[0]];
		res.writeHead(200,{'Content-type': mimeType });

		var fileStream = fs.createReadStream(fileName);
		fileStream.pipe(res);
	}
	else if (stats.isDirectory()) {
		res.writeHead(302,{
			'Location' : 'index.html'
		});
		res.end();
	}
	else {
		res.writeHead(500,{
			'Content-type': 'text/plain'
		});
		res.write('500 Internal Error \n');
		res.end(); 
	}
}).listen(3000);