Api 带有翻译消息的平台自定义异常

Question

我在 api 平台中为用户实例使用自定义端点和自定义控制器。

class PayingMembershipForOthersController
{

    private ValidatorInterface $validator;

    public function __construct(ValidatorInterface $validator)
    {
        $this->validator = $validator;
    }

    public function __invoke(User $data)
    {
        $this->validator->validate($data);
        try {
           $paymentService->paymentMembership($data);
        } catch(\Exception $e) {
           throw $e
        }
        return $data;
    }

}

如果找不到用户，我的 $userService 将抛出自定义异常，如下所示。

class XXXException extends \Exception
{
    public function __construct(
        $message = "user.notfound.message",  // Translation file key.
        $code = 0,
        Throwable $previous = null
    ) {
        parent::__construct($message, $code, $previous);
    }
}

所以我想在这里发送翻译消息 ( UserNotFound [de_DE] 和 UserNotFound [en_EN]。所以你能帮我吗。

提前致谢..!!!

Answer 1

API平台有两个有用的工具来处理Exception:

第一个允许您从代码的任何地方抛出异常。 API-平台会捕获它，然后将其转换为漂亮的Response:

# config/packages/api_platform.yaml

api_platform:
    # ...
    exception_to_status:
        App\Exception\MyException: 400
        App\Exception\AnotherException: 500

下一个允许捕获抛出的异常并处理它。在您的情况下，有效负载是将异常消息翻译成适当的语言。在这个例子中，我使用 Symfony translator service:


namespace App\EventSubscriber;


use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpKernel\Event\ExceptionEvent;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Contracts\Translation\TranslatorInterface;

class ExceptionSubscriber implements EventSubscriberInterface
{
    private TranslatorInterface $translator;

    public function __construct(TranslatorInterface $translator)
    {
        $this->translator = $translator;
    }

    public static function getSubscribedEvents()
    {
        return [
           KernelEvents::EXCEPTION => ['translateException'],
        ];
    }

    public function translateException(ExceptionEvent $event): void
    {
        $currentException = $event->getThrowable();
        $currentMessage = $currentException->getMessage();

        $translatedMessage = $this->translator->trans($currentMessage);
        $exceptionClass = get_class($currentException);
        $translatedException = new $exceptionClass($translatedMessage);

        $event->setThrowable($translatedException);
    }
}

这样，每个未捕获的异常都将被转换，然后转换为 HTTP 错误响应。

Api 带有翻译消息的平台自定义异常

Api platform Custom Exception with translator message

api

validation

symfony

api-platform.com