I want to get back orders by specific product id and update product's back orders status by specific product.

Any help would be appreciated.


2 Answers 2


You need to inject \Magento\Catalog\Api\ProductRepositoryInterface in your construct for get backorders details by specific product Id. Add this below code in your construct :

protected $productRepository;

public function __construct(
    \Magento\Catalog\Api\ProductRepositoryInterface $productRepository
) {
    $this->productRepository = $productRepository;

Now, You need to add this below code in your function.

Get backorders by specific product :

$productId = 1;
$product = $this->productRepository->getById($productId);
$productStock = $product->getExtensionAttributes()->getStockItem();
echo $productStock['backorders'];

Update backorders by specifc product :

$productId = 1;
$product = $this->productRepository->getById($productId);
$stockData = ['backorders' => 1, 'use_config_backorders' => 1];


You can body value which you pass in API get this by this below code :

protected $request;

public function __construct(
\Magento\Framework\Webapi\Rest\Request $request
$this->request = $request;  

$postBodyData = $this->request->getBodyParams();

Hope, It will helpful for you.

  • I added this code in API and need to get data which pass in body text. How to get that value? Dec 8, 2019 at 12:47
  • check my updated answer. Dec 8, 2019 at 12:58
  • Thanks !! It's working.. Dec 8, 2019 at 13:01

Try below code

$obj = \Magento\Framework\App\ObjectManager::getInstance();  
$stockRegistry = $obj->get('Magento\CatalogInventory\Api\StockRegistryInterface');
$stockitem = $stockRegistry->getStockItem($_product->getId(),$_product->getStore()->getWebsiteId());
echo "Backorder: "; echo $stockitem->getBackorders(); echo '<br>';
  • How to update also? Dec 7, 2019 at 9:43
  • 1
    I checked in "cataloginventory_stock_item" table for product id 1, and there are backorders field value is "1" But, still it returns 0 Dec 7, 2019 at 9:45

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