ExceptionListener.php

<?php

namespace App\EventListener;

use App\Exception\JsonHttpException;
use Psr\Log\LoggerInterface;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

class ExceptionListener
{
    /**
     * @var LoggerInterface
     */
    private $logger;

    public function __construct(LoggerInterface $logger)
    {
        $this->logger = $logger;
    }

    public function onKernelException(GetResponseForExceptionEvent $event)
    {
        $request = $event->getRequest();
        $exception = $event->getException();
        $apiUrlPattern = '/^\/api\/v\d+(\.{1}\d+)?\//';
        if ($exception instanceof JsonHttpException) {
            $errorData = [
                'error' => [
                    'code' => $exception->getStatusCode(),
                    'message' => $exception->getMessage(),
                    'fields' => $exception->getData()
                ]
            ];
            if (($data = $exception->getData())) {
                if (isset($data['code'])) {
                    $errorData['error']['code'] = $data['code'];
                }
            }
            $response = new JsonResponse($errorData);
            $event->setResponse($response);
            $this->logger->error($exception->getMessage(), $errorData);

            return $event;
        }

        if ($exception && $exception instanceof \ErrorException && preg_match($apiUrlPattern, $request->getPathInfo())) {
            $errorData = [
                'error' => [
                    'code' => 1,
                    'message' => $exception->getMessage(),
                ]
            ];
            $response = new JsonResponse($errorData);
            $event->setResponse($response);
            $this->logger->error($exception->getMessage(), $errorData);

            return $event;
        }

        if ((bool) $exception && preg_match($apiUrlPattern, $request->getPathInfo())
            && $exception instanceof HttpExceptionInterface && 403 == $exception->getStatusCode()) {
            $errorData = [
                'error' => [
                    'code' => $exception->getStatusCode(),
                    'message' => 'Access denied',
                ]
            ];
            $response = new JsonResponse($errorData);
            $event->setResponse($response);
            $this->logger->error($exception->getMessage(), $errorData);

            return $event;
        }

        if ($exception instanceof NotFoundHttpException && preg_match($apiUrlPattern, $request->getPathInfo())) {
            $errorData = [
                'error' => [
                    'code' => $exception->getStatusCode(),
                    'message' => 'Not found',
                ]
            ];

            $response = new JsonResponse($errorData);
            $event->setResponse($response);
            $this->logger->error($exception->getMessage(), $errorData);

            return $event;
        }

        return $event;
    }
}