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<?php
namespace Drupal\jsonapi\Routing;
use Drupal\Core\Routing\RequestFormatRouteFilter;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\RouteCollection;
/**
* Sets the 'api_json' format for requests to JSON:API resources.
*
* Because this module places all JSON:API resources at paths prefixed with
* /jsonapi, and therefore not shared with other formats,
* \Drupal\Core\Routing\RequestFormatRouteFilter does correctly set the request
* format for those requests. However, it does so after other filters, such as
* \Drupal\Core\Routing\ContentTypeHeaderMatcher, run. If those other filters
* throw exceptions, we'd like the error response to be in JSON:API format as
* well, so we set that format here, in a higher priority (earlier running)
* filter. This works so long as the resource format can be determined before
* running any other filters, which is the case for JSON:API resources per
* above.
*
* @internal
*/
final class EarlyFormatSetter extends RequestFormatRouteFilter {
/**
* {@inheritdoc}
*/
public function filter(RouteCollection $collection, Request $request) {
if (is_null($request->getRequestFormat(NULL))) {
$possible_formats = static::getAvailableFormats($collection);
if ($possible_formats === ['api_json']) {
$request->setRequestFormat('api_json');
}
}
return $collection;
}
}
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