1	<?php
2
3	namespace App\EventSubscriber;
4
5	use App\Normalizer\ExceptionNormalizer;
6	use Symfony\Component\DependencyInjection\Attribute\AutowireIterator;
7	use Symfony\Component\EventDispatcher\EventSubscriberInterface;
8	use Symfony\Component\HttpFoundation\JsonResponse;
9	use Symfony\Component\HttpKernel\Event\ExceptionEvent;
10	use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
11	use Symfony\Component\HttpKernel\KernelEvents;
12	use Symfony\Component\Serializer\Exception\ExceptionInterface;
13
14	/**
15	* Handles exceptions to generate Json responses using custom normalizers
16	* This allows more control on the error response format with no dependency to symfony internals.
17	*
18	* @author Wilhelm Zwertvaegher
19	*/
20	readonly class ExceptionSubscriber implements EventSubscriberInterface
21	{
22	/**
23	* @param iterable<ExceptionNormalizer> $normalizers
24	*/
25	public function __construct(
26	#[AutowireIterator('app.exception_normalizer')]
27	private iterable $normalizers,
28	) {
29	}
30
31	/**
32	* @throws ExceptionInterface
33	*/
34	public function onExceptionEvent(ExceptionEvent $event): void
35	{
36	$request = $event->getRequest();
37	if ('json' !== $request->getRequestFormat()) {
38	return;
39	}
40	$throwable = $event->getThrowable();
41	foreach ($this->normalizers as $normalizer) {
42	if ($normalizer->supportsNormalization($throwable)) {
43	$data = $normalizer->normalize($throwable);
44	$status = $data['status'] ?? ($throwable instanceof HttpExceptionInterface ? $throwable->getStatusCode() : 500);
45	$event->setResponse(new JsonResponse($data, $status));
46	}
47	}
48	}
49
50	public static function getSubscribedEvents(): array
51	{
52	return [
53	KernelEvents::EXCEPTION => 'onExceptionEvent',
54	];
55	}
56	}

---

Branches

Below are the source code lines that represent each code branch as identified by Xdebug. Please note a branch is not necessarily coterminous with a line, a line may contain multiple branches and therefore show up more than once. Please also be aware that some branches may be implicit rather than explicit, e.g. an if statement always has an else as part of its logical flow even if you didn't write one.

ExceptionSubscriber->__construct

25	public function __construct(
26	#[AutowireIterator('app.exception_normalizer')]
27	private iterable $normalizers,
28	) {
29	}

ExceptionSubscriber->getSubscribedEvents

53	KernelEvents::EXCEPTION => 'onExceptionEvent',
54	];
55	}

ExceptionSubscriber->onExceptionEvent

34	public function onExceptionEvent(ExceptionEvent $event): void
35	{
36	$request = $event->getRequest();
37	if ('json' !== $request->getRequestFormat()) {

38

return;

40	$throwable = $event->getThrowable();
41	foreach ($this->normalizers as $normalizer) {

41	foreach ($this->normalizers as $normalizer) {

42	if ($normalizer->supportsNormalization($throwable)) {

43	$data = $normalizer->normalize($throwable);
44	$status = $data['status'] ?? ($throwable instanceof HttpExceptionInterface ? $throwable->getStatusCode() : 500);

44	$status = $data['status'] ?? ($throwable instanceof HttpExceptionInterface ? $throwable->getStatusCode() : 500);

44	$status = $data['status'] ?? ($throwable instanceof HttpExceptionInterface ? $throwable->getStatusCode() : 500);

41	foreach ($this->normalizers as $normalizer) {
42	if ($normalizer->supportsNormalization($throwable)) {
43	$data = $normalizer->normalize($throwable);
44	$status = $data['status'] ?? ($throwable instanceof HttpExceptionInterface ? $throwable->getStatusCode() : 500);

41	foreach ($this->normalizers as $normalizer) {

41	foreach ($this->normalizers as $normalizer) {
42	if ($normalizer->supportsNormalization($throwable)) {
43	$data = $normalizer->normalize($throwable);
44	$status = $data['status'] ?? ($throwable instanceof HttpExceptionInterface ? $throwable->getStatusCode() : 500);
45	$event->setResponse(new JsonResponse($data, $status));
46	}
47	}
48	}

onExceptionEvent

34	public function onExceptionEvent(ExceptionEvent $event): void
35	{
36	$request = $event->getRequest();
37	if ('json' !== $request->getRequestFormat()) {

38

return;

40	$throwable = $event->getThrowable();
41	foreach ($this->normalizers as $normalizer) {

41	foreach ($this->normalizers as $normalizer) {

42	if ($normalizer->supportsNormalization($throwable)) {

43	$data = $normalizer->normalize($throwable);
44	$status = $data['status'] ?? ($throwable instanceof HttpExceptionInterface ? $throwable->getStatusCode() : 500);

44	$status = $data['status'] ?? ($throwable instanceof HttpExceptionInterface ? $throwable->getStatusCode() : 500);

44	$status = $data['status'] ?? ($throwable instanceof HttpExceptionInterface ? $throwable->getStatusCode() : 500);

41	foreach ($this->normalizers as $normalizer) {
42	if ($normalizer->supportsNormalization($throwable)) {
43	$data = $normalizer->normalize($throwable);
44	$status = $data['status'] ?? ($throwable instanceof HttpExceptionInterface ? $throwable->getStatusCode() : 500);

41	foreach ($this->normalizers as $normalizer) {

41	foreach ($this->normalizers as $normalizer) {
42	if ($normalizer->supportsNormalization($throwable)) {
43	$data = $normalizer->normalize($throwable);
44	$status = $data['status'] ?? ($throwable instanceof HttpExceptionInterface ? $throwable->getStatusCode() : 500);
45	$event->setResponse(new JsonResponse($data, $status));
46	}
47	}
48	}

{main}

3	namespace App\EventSubscriber;
4
5	use App\Normalizer\ExceptionNormalizer;
6	use Symfony\Component\DependencyInjection\Attribute\AutowireIterator;
7	use Symfony\Component\EventDispatcher\EventSubscriberInterface;
8	use Symfony\Component\HttpFoundation\JsonResponse;
9	use Symfony\Component\HttpKernel\Event\ExceptionEvent;
10	use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
11	use Symfony\Component\HttpKernel\KernelEvents;
12	use Symfony\Component\Serializer\Exception\ExceptionInterface;
13
14	/**
15	* Handles exceptions to generate Json responses using custom normalizers
16	* This allows more control on the error response format with no dependency to symfony internals.
17	*
18	* @author Wilhelm Zwertvaegher
19	*/
20	readonly class ExceptionSubscriber implements EventSubscriberInterface
21	{
22	/**
23	* @param iterable<ExceptionNormalizer> $normalizers
24	*/
25	public function __construct(
26	#[AutowireIterator('app.exception_normalizer')]
27	private iterable $normalizers,
28	) {
29	}
30
31	/**
32	* @throws ExceptionInterface
33	*/
34	public function onExceptionEvent(ExceptionEvent $event): void
35	{
36	$request = $event->getRequest();
37	if ('json' !== $request->getRequestFormat()) {
38	return;
39	}
40	$throwable = $event->getThrowable();
41	foreach ($this->normalizers as $normalizer) {
42	if ($normalizer->supportsNormalization($throwable)) {
43	$data = $normalizer->normalize($throwable);
44	$status = $data['status'] ?? ($throwable instanceof HttpExceptionInterface ? $throwable->getStatusCode() : 500);
45	$event->setResponse(new JsonResponse($data, $status));
46	}
47	}
48	}
49
50	public static function getSubscribedEvents(): array
51	{
52	return [
53	KernelEvents::EXCEPTION => 'onExceptionEvent',
54	];
55	}