Symfony\Component\Security\Core\SecurityContext::getToken PHP Method

    public function getToken()
    {
        return $this->tokenStorage->getToken();
    }

 public function onKernelRequest(GetResponseEvent $event)
 {
     if ($this->kernel->getEnvironment() != "dev") {
         if (preg_match("/\\/api\\//", $event->getRequest()->getUri())) {
             $requestUri = $event->getRequest()->getUri();
             $requestMethod = $event->getRequest()->getMethod();
             if ($requestMethod !== "GET") {
                 $token = $this->context->getToken();
                 if (isset($token)) {
                     $user = $token->getUser();
                     if (!isset($user) || "anon." === $user) {
                         if (!$event->getRequest()->query->has('api_key')) {
                             $event->setResponse(new Response(json_encode(array("code" => 401, "message" => "The request requires user authentication")), 401));
                         }
                     }
                 } else {
                     $event->setResponse(new Response(json_encode(array("code" => 401, "message" => "The request requires user authentication")), 401));
                 }
             }
         }
     }
     $request = $event->getRequest();
     if (!count($request->request->all()) && in_array($request->getMethod(), array('POST', 'PUT', 'PATCH', 'DELETE'))) {
         $contentType = $request->headers->get('Content-Type');
         $format = null === $contentType ? $request->getRequestFormat() : $request->getFormat($contentType);
         if (!$this->decoderProvider->supports($format)) {
             return;
         }
         $decoder = $this->decoderProvider->getDecoder($format);
         $data = $decoder->decode($request->getContent(), $format);
         if (is_array($data)) {
             $request->request = new ParameterBag($data);
         }
     }
 }