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<?php |
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namespace Drupal\graphql\Controller; |
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use Drupal\Core\Cache\Cache; |
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use Drupal\Core\Cache\CacheableJsonResponse; |
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use Drupal\Core\Cache\CacheableMetadata; |
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use Drupal\Core\Cache\CacheableResponseInterface; |
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use Drupal\Core\Cache\RefinableCacheableDependencyInterface; |
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use Drupal\Core\Config\Config; |
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use Drupal\Core\DependencyInjection\ContainerInjectionInterface; |
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use Drupal\Core\Render\RenderContext; |
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use Drupal\Core\Render\RendererInterface; |
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use Drupal\Core\Url; |
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use Drupal\graphql\GraphQL\Execution\QueryProcessor; |
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use Symfony\Component\DependencyInjection\ContainerInterface; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpFoundation\RequestStack; |
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use Symfony\Component\HttpFoundation\Response; |
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use Symfony\Component\HttpKernel\HttpKernelInterface; |
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/** |
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* Handles GraphQL requests. |
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*/ |
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class RequestController implements ContainerInjectionInterface { |
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/** |
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* The renderer service. |
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* |
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* @var \Drupal\Core\Render\RendererInterface |
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*/ |
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protected $renderer; |
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/** |
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* The query processor. |
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* |
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* @var \Drupal\graphql\GraphQL\Execution\QueryProcessor |
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*/ |
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protected $processor; |
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/** |
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* {@inheritdoc} |
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*/ |
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public static function create(ContainerInterface $container) { |
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return new static( |
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$container->get('renderer'), |
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$container->get('graphql.query_processor') |
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); |
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} |
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/** |
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* RequestController constructor. |
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* |
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* @param \Drupal\Core\Render\RendererInterface $renderer |
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* The renderer service. |
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* @param \Drupal\graphql\GraphQL\Execution\QueryProcessor $processor |
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* The query processor. |
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*/ |
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public function __construct( |
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RendererInterface $renderer, |
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QueryProcessor $processor |
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) { |
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$this->renderer = $renderer; |
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$this->processor = $processor; |
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} |
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/** |
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* Handles GraphQL requests. |
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* |
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* @param string $schema |
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* The name of the schema. |
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* @param \GraphQL\Server\OperationParams|\GraphQL\Server\OperationParams[] $operations |
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* The graphql operation(s) to execute. |
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* |
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* @return \Drupal\Core\Cache\CacheableJsonResponse |
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* The JSON formatted response. |
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*/ |
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public function handleRequest($schema, $operations) { |
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/** @var \Drupal\graphql\GraphQL\Execution\QueryResult $result */ |
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$result = NULL; |
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$context = new RenderContext(); |
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// Evaluating the GraphQL request can potentially invoke rendering. We allow |
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// those to "leak" and collect them here in a render context. |
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$this->renderer->executeInRenderContext($context, function() use ($schema, $operations, &$result) { |
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$result = $this->processor->processQuery($schema, $operations); |
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}); |
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$response = new CacheableJsonResponse($result->getData()); |
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$response->addCacheableDependency($response->getCacheableMetadata()); |
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// Apply render context cache metadata to the response. |
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if (!$context->isEmpty()) { |
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$response->addCacheableDependency($context->pop()); |
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} |
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return $response; |
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} |
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} |
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drupal-graphql /
graphql
