static_server.js

var http = require("http"),
    url = require("url"),
    path = require("path"),
    fs = require("fs")
    port = process.argv[2] || 4002;

http.createServer(function(request, response) {

  var uri = url.parse(request.url).pathname
    , filename = decodeURIComponent(path.join(process.cwd(), uri));

  console.log(uri);

  fs.exists(filename, function(exists) {
    if(!exists) {
      response.writeHead(404, {"Content-Type": "text/plain"});
      response.write("404 Not Found\n");
      response.end();
      return;
    }

    if (fs.statSync(filename).isDirectory()) filename += '/index.html';

    fs.exists(filename, function(exists) {
      if (!exists) {
        response.writeHead(404, {"Content-Type": "text/plain"});
        response.write("No index.html file. \n");
        response.end();
        return;
      }

      var readstream = fs.createReadStream(filename);
      response.writeHead(200);
      // readstream.setEncoding("binary");
      readstream.pipe(response);
      // readstream.on('data', function (chunk) {
      //   response.write(chunk, 'binary');
      // });
      // readstream.on('end', function () {
      //   console.log('served ' + filename + '');
      //   response.end();
      // });
      readstream.on('error', function(err) {
        response.write(err + "\n");
        response.end();
        return;
      });

    });
  });
}).listen(parseInt(port, 10));

console.log("Static file server running at\n  => http://localhost:" + port + "/\nCTRL + C to shutdown");