Chris@0: has('http_middleware.negotiation') && is_a($container->getDefinition('http_middleware.negotiation')->getClass(), '\Drupal\Core\StackMiddleware\NegotiationMiddleware', TRUE)) { Chris@0: $container->getDefinition('http_middleware.negotiation')->addMethodCall('registerFormat', ['hal_json', ['application/hal+json']]); Chris@0: } Chris@0: } Chris@0: Chris@0: }