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FractalNegotiatorMiddleware.php
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FractalNegotiatorMiddleware.php
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<?php
namespace Concrete\Core\Http\Middleware;
use League\Fractal\Manager;
use League\Fractal\Resource\ResourceInterface;
use League\Fractal\Scope;
use League\Fractal\Serializer\ArraySerializer;
use League\Fractal\Serializer\DataArraySerializer;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Request;
class FractalNegotiatorMiddleware implements MiddlewareInterface
{
protected $serializer;
/**
* @var \League\Fractal\Manager
*/
private $fractal;
public function __construct(Manager $fractal)
{
$this->fractal = $fractal;
}
public function getSerializer()
{
return isset($this->serializer) ? $this->serializer : new DataArraySerializer();
}
/**
* @param DataArraySerializer $serializer
*/
public function setSerializer($serializer)
{
$this->serializer = $serializer;
}
/**
* Process the request and return a response
*
* @param \Symfony\Component\HttpFoundation\Request $request
* @param DelegateInterface $frame
* @return \Symfony\Component\HttpFoundation\Response
*/
public function process(Request $request, DelegateInterface $frame)
{
$response = $frame->next($request);
$this->fractal->setSerializer($this->getSerializer());
// Handle a Resource
if ($response instanceof ResourceInterface) {
$response = $this->fractal->createData($response);
}
// Handle outputting a scope
if ($response instanceof Scope) {
$json = $response->toJson();
// Build a new Json response
return JsonResponse::fromJsonString($json);
}
return $response;
}
}