Upload files using Joomla JHttp

gistfile1.txt

$path = realpath('/absolute/path/to/file.jpg');
$upload_path = new \CURLFile($path);
$url = 'http://example.com/upload';

//$post_data['foo'] = 'bar';
$post_data['file'] = $upload_path;

//$headers['user-id'] = 'imli';
$headers['Content-Type'] = 'multipart/form-data';

$options = new JRegistry;
$http = JHttpFactory::getHttp($options, 'curl');

$op = $http->post( $url, $post_data, $headers );

print_r($op);
print_r($http);

jexit();