protected function getProductOptions($productObj)
    {
        $objectManager = MagentoFrameworkAppObjectManager::getInstance();
        $customOptions = $objectManager->get('MagentoCatalogModelProductOption')->getProductOptionCollection($productObj);

        $options = [];
        if($customOptions->count() > 0) {
            foreach($customOptions as $customOption) {

                $optionsValue = [];
                $customOptionValues = $objectManager->get('MagentoCatalogModelProductOptionValue')->getValuesCollection($customOption);
                if($customOptionValues->count() > 0) {
                    foreach($customOptionValues as $customOptionValue) {
                        $optionsValue[] = array(
                            'record_id' => $customOptionValue->getRecordId(),
                            'title' => $customOptionValue->getTitle(),
                            'price' => $customOptionValue->getPrice(),
                            'price_type' => $customOptionValue->getPriceType(),
                            'sort_order' => $customOptionValue->getSortOrder(),
                            'sku' => $customOptionValue->getSku(),
                            'is_delete' => 0,
                        );
                    }
                }


                $sku = $customOption->getSku();
                $title = $customOption->getTitle();
                $type = $customOption->getType();
                $price = $customOption->getPrice();
                $price_type = $customOption->getPriceType();
                $record_id = $customOption->getRecordId();

                $options[] = array(
                    'sort_order' => $customOption->getSortOrder(),
                    'title' => $title,
                    'price_type' => $price_type,
                    'price' => $price,
                    'type' => $type,
                    'values' => $optionsValue,
                    'is_require' => 1,
                );

            }
        }

        return $options;
    }

protected function addProductCustomOptions($product, $productOption)
    {
        $objectManager = MagentoFrameworkAppObjectManager::getInstance();

        $product->setHasOptions(1);
        $product->setCanSaveCustomOptions(true);
        foreach ($productOption as $arrayOption) {
            $option = $objectManager->create('MagentoCatalogModelProductOption')
                    ->setProductId($product->getId())
                    ->setStoreId($product->getStoreId())
                    ->addData($arrayOption);
            $option->save();
            $product->addOption($option);
        }

    }