a basic server with nodejs(no express).

Basic Server using NodeJS

const http = require('http');
const url = require('url');
const path = require('path');
const fs = require('fs');

const mimeTypes = {
    'html': 'text/html',
    'jpeg': 'image/jpeg',
    'jpg': 'image/jpg',
    'png': 'image/png',
    'js': 'text/javascript',
    'css': 'text/css',
}

http.createServer(function(req, res){
    let uri = url.parse(req.url).pathname;

    let fileName = path.join(process.cwd(), unescape(uri));
    console.log('Loading' + uri);
    let stats;

    try{
        stats = fs.lstatSync(fileName);
    }catch(err){
        res.writeHead(404, {'Content-type': 'text/plain'});
        res.write('404 Not Found\n');
        res.end();
        return;
    };

    if(stats.isFile()){
        let mimeType = mimeTypes[path.extname(fileName).split(".").reverse()[0]];
        res.writeHead(200, {'Content-type': mimeType});

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