Kdjykuj

Someone knows how to get qty for each simple product of configurable product via javascript in product page?

It seems that spConfig retrieved with

#product_addtocart_form": {

    "configurable": {

        "spConfig": <?php /* @escapeNotVerified */ echo $block->getJsonConfig() ?>

    }

}

hasn't data about qty.

I have to retrieve it with custom code or do you have some hints on how to find qty information?

Thx to @Amit Bera for hints, here my answer.

Override MagentoConfigurableProductModelConfigurableAttributeData and extends getAttributeOptionsData() adding qty field:

/**

 * @var \MagentoCatalogInventoryApiStockStateInterface

 */

protected $_stockState;







/**

 *

 */

public function __construct(

    MagentoCatalogInventoryApiStockStateInterface $stockState

) {



    $this->_stockState = $stockState;



}







/**

 * @param Attribute $attribute

 * @param array $config

 * @return array

 */

protected function getAttributeOptionsData($attribute, $config) {



    $attributeOptionsData = ;

    foreach ($attribute->getOptions() as $attributeOption) {



        $optionId = $attributeOption['value_index'];



        $attributeOptionsData = [

            'id' => $optionId,

            'label' => $attributeOption['label'],

            'products' => isset($config[$attribute->getAttributeId()][$optionId])

                ? $config[$attribute->getAttributeId()][$optionId]

                : ,

            'qty' => isset($config[$attribute->getAttributeId()][$optionId][0])

                ? $this->_stockState->getStockQty($config[$attribute->getAttributeId()][$optionId][0])

                : '',

        ];

    }



    return $attributeOptionsData;



}

Now in appcodexxxyyyviewfrontendtemplatesproductviewtypeoptionsconfigurable.phtml you could retrieve simple product qty with simple js:

var config = <?php /* @escapeNotVerified */ echo $block->getJsonConfig() ?>;

.....

// loop options config.attributes[attribute_id].options

// for each simple product to obtain:

// Object {id: "231", label: "M", products: ["2089"], qty: 2}

In this case,you need to rewrite class MagentoConfigurableProductHelperData;

then at getOptions() function at

 $objectManager = MagentoFrameworkAppObjectManager::getInstance();

    $StockState = $objectManager->get('MagentoCatalogInventoryApiStockStateInterface');



$options['qty'][$productId]=$StockState->getStockQty($product->getId(), $product->getStore()->getWebsiteId()); 

after $images = $this->getGalleryImages($product);