node.js echo request server

hello_node.js

var http = require('http'),
    sys = require('sys');

var server = http.createServer(function(request, response) {
  request.addListener('end', function() {
    response.writeHead(200, {
      'Content-Type': 'text/plain'
    });
    response.write(sys.inspect(request));
    response.end();
  });
});
server.listen(8000);