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http.Server doesn't have addListener in node.js? It isn't a event emitter?
var http = require('http');
http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello Node.jsn');
}).listen(80, "127.0.0.1");
http.Server.addListener('request', function(req,res){
  console.log(req.headers);
});
console.log('Server running at http://127.0.0.1');

var http = require('http');
var myServer = http.createServer(function (req, res) {
    res.writeHead(200, {'Content-Type': 'text/plain'});
    res.end('Hello Node.jsn');
});
myServer.listen(80, "127.0.0.1");
myServer.addListener('request', function(req,res){
    console.log(req.headers);
});