OptionsValidatorInterface

Example implementation:

final class CreditCardOptionsValidator implements OptionsValidatorInterface
{
    public function validateOptions(OptionsBag $options): array
    {
       $errors = [];
       if (!$options->has('provider')) {
           $errors[] = new OptionsValidatorError('provider', 'Provider must be configured explicitly.');
       }

      return $errors;
    }
}

The \Ibexa\Contracts\Payment\PaymentMethod\Type\OptionsValidatorInterface implementations must be registered as a service with ibexa.payment.payment_method.options.validator tag and type attribute.

services:
   App\PaymentMethod\CreditCardOptionsValidator:
       tags:
            - name: ibexa.payment.payment_method.options.validator
              type: credit_card