Using node.js as a simple web server

Question

I want to run a very simple HTTP server. Every GET request to example.com should get index.html served to it but as a regular HTML page (i.e., same

Answer 1

The simpler version which I've came across is as following. For education purposes, it is best, because it does not use any abstract libraries.

var http = require('http'),
url = require('url'),
path = require('path'),
fs = require('fs');

var mimeTypes = {
  "html": "text/html",
  "mp3":"audio/mpeg",
  "mp4":"video/mp4",
  "jpeg": "image/jpeg",
  "jpg": "image/jpeg",
  "png": "image/png",
  "js": "text/javascript",
  "css": "text/css"};

http.createServer(function(req, res) {
    var uri = url.parse(req.url).pathname;
    var filename = path.join(process.cwd(), uri);
    fs.exists(filename, function(exists) {
        if(!exists) {
            console.log("not exists: " + filename);
            res.writeHead(200, {'Content-Type': 'text/plain'});
            res.write('404 Not Found\n');
            res.end();
            return;
        }
        var mimeType = mimeTypes[path.extname(filename).split(".")[1]];
        res.writeHead(200, {'Content-Type':mimeType});

        var fileStream = fs.createReadStream(filename);
        fileStream.pipe(res);

    }); //end path.exists
}).listen(1337);

Now go to browser and open following:

http://127.0.0.1/image.jpg

Here image.jpg should be in same directory as this file. Hope this helps someone :)