/**
* Get Cache Key
*
* @param Request $request Request
*
* @return string Cache Key
*/
private function getCacheKey(Request $request, $cache_duration)
{
$keys = array_merge($request->getQueryParams(), $request->getAttributes());
$cache_key = $request->getUri();
$cache_key .= $request->getMethod();
$cache_key .= $cache_duration;
$cache_key .= serialize($keys);
return md5($cache_key);
}
