Observers Exception responses

[HAL0594]

• Laravel Version: 10
• Nova Version: 4.0
• PHP Version: 8.1

Description:

Is there a way to return errors from observers? I am trying to return a custom Exception for example :

throw new \Exception('My Exception Message.');

but it always throws the same two error messages:

The resource was prevented from being saved!
and
There was a problem submitting the form.

[crynobone]

A generic Exception will be converted to 500 HTTP response, to display a custom exception I believe you need to return 4xx HTTP response using any of the available Symfony HTTP Exception classes.

[bocanhcam]

Same issue here. It always throws the default message. If you throw your own exception then it throws 2 messages.

The default error message seems to come from the front end cause the API only throws one message.

class ReOpenOrderException extends Exception implements HttpExceptionInterface
{
    public function __construct(string $message = "御希望の日時は予約できません。", int $code = 0, ?Throwable $previous = null)
    {
        parent::__construct($message, $code, $previous);
    }

    public function getStatusCode(): int
    {
        return 500;
    }

    public function getHeaders(): array
    {
        return [];
    }
}