http_client.js

var http = require('http');
var options = { host: 'localhost',
                port: 1337,
                path: '/',
                method: 'POST'};
var req = http.request(options, function(res){
  var data = '';
  res.on('data', function(chunk){
    data += chunk;
  });
  res.on('end', function(){
    console.log(data);
  });
});
var msg = 'Hello from HTTP Client Request';
req.setHeader('Content-Length', Buffer.byteLength(msg));
req.write(msg);
req.end();