NODE.JS Wysyłanie HTTP POST

gistfile1.js

var http = require('http');

exports.sendPost = function(options,data,callback) {
	var post_data = querystring.stringify(data);
	var opts = {
		host: options.host,
		port: options.port,
		maxSockets : 100,
		path: options.path,
		method: 'POST',
		headers: {
			'Host': options.host_name,
			'Connection' : 'close',
			'Content-Type': 'application/x-www-form-urlencoded',
			'Content-Length': post_data.length
		}
	};
	http.globalAgent.maxSockets = 100;
	var req = http.request(opts, function(res) {
		var data = '';
		res.setEncoding('utf8');
		res.on('data', function (chunk) {
			data+=chunk;
		});
		res.on('end', function () {
			if(typeof callback == 'function') {
				callback(false,data);
			}
		});
	});
	req.on('error', function(e) {
		if(typeof callback == 'function') {
			callback(e,false);
		}
	});
	req.write(post_data);
	req.end();
};