Kdjykuj

this is my plugin file OrderRepositoryPlugin.php
`

use MagentoCatalogApiProductRepositoryInterfaceFactory as ProductRepository;

use MagentoSalesApiDataOrderExtensionFactory;

use MagentoSalesApiDataOrderExtensionInterface;

use MagentoSalesApiDataOrderInterface;

use MagentoSalesApiDataOrderSearchResultInterface;
use MagentoCatalogHelperImageFactory as ProductImageHelper;

use MagentoSalesApiOrderRepositoryInterface;

/**

• 
  

  Class OrderRepositoryPlugin

  
  
  

  */

  
  

class OrderRepositoryPlugin

{

     /**



     *@var MagentoCatalogHelperImageFactory



     */



    protected $productImageHelper;



       /**



     * @var ProductRepository



     */



    protected $productRepository;



/**



 * Order Comment field name



 */



const FIELD_NAME = 'unitm';







/**



 * Order Extension Attributes Factory



 *



 * @var OrderExtensionFactory



 */



protected $extensionFactory;



/**



 * OrderRepositoryPlugin constructor



 *



 * @param OrderExtensionFactory $extensionFactory



 */



public function __construct(



    ProductImageHelper $productImageHelper,



    OrderExtensionFactory $extensionFactory,



    MagentoCatalogApiProductRepositoryInterface $productRepository



    )



{



    $this->productImageHelper = $productImageHelper;



    $this->extensionFactory = $extensionFactory;



    $this->_productRepository = $productRepository;



}

public function afterGet(OrderRepositoryInterface $subject, OrderInterface $order)



{



    $addAtt = array();



    $info = array();   

    $addImage = array();



    $infoImage = array(); 



    foreach ($order->getAllItems() as $orderItems) {   



        $itemExtAttr = $order->getExtensionAttributes();

        $product = $this->_productRepository->getById($orderItems->getProductId());

        $uom = $product->getUnitm();

        $weight = round($product->getWeight(), 0);

        $optionId = $product->getUnitm();

            $attribute = $product->getResource()->getAttribute('unitm');

            if ($attribute->usesSource()) {

                $optionText = $attribute->getSource()->getOptionText($optionId);

            }



        $sku = $orderItems->getSku();



        $imageurl =$this->productImageHelper->create()->init($product, 'product_thumbnail_image')->setImageFile($product->getThumbnail())->getUrl();

        $addAtt[$sku] = $weight." ".$optionText;

        $addImage[$sku] = $imageurl;

    } 



    $info = $addAtt; 



    $infoImage = $addImage;



    $data = json_encode($info);



    $dataImage = json_encode($infoImage);



   $orderComment = $order->getData(self::FIELD_NAME);



    $extensionAttributes = $order->getExtensionAttributes();



    $extensionAttributes = $extensionAttributes ? $extensionAttributes : $this->extensionFactory->create();

    $extensionAttributes->setUnitm($data);



    $extensionAttributes->setImageUrl($dataImage);



    $order->setExtensionAttributes($extensionAttributes);

    return $order;



}

}
this isextension_attributes.xml




Here am trying set extension attribute to order interface, but its working in other Orders but not is search criteria, how to achieve it, Thank you in advance.
API is likerest/V1/orders?searchCriteria[filter_groups][0][filters][0][field]=customer_email&searchCriteria[filter_groups][0][filters][0][value]=me345@gmail.com`