Assign categories to product REST API

[preetkamigaeac]

I am trying to import products from 1 store to another Magento 2.4 store. In the below code have issue to assign category to the product.

	$categories = $item['extension_attributes']['category_links'];
			$catArray = array();

		 	foreach($categories as $category){
		 		$category_id = $category['category_id'];

		 		foreach($localCategories as $lcat){
		 			if($category_id == $lcat['baseId']){
		 				array_push($catArray, $lcat['id']);
		 			}
		 		}
		 	}
 	$product['categories'] = $catArray;

The above code leaves the category blank. If I remove foreach($categories as $category), product is assigned to all the categories.

[johnwebdes40a5]

Hello @preetkamigaeac 

Update your code to ensure category_links is in the proper format before making the API request.

$categories = $item['extension_attributes']['category_links'];
$catArray = [];
foreach ($categories as $category) {
    $category_id = $category['category_id'];
    foreach ($localCategories as $lcat) {
        if ($category_id == $lcat['baseId']) {
            $catArray[] = ['category_id' => (string) $lcat['id']];
        }
    }
}
$product['extension_attributes']['category_links'] = $catArray;

Hope it helps ! 

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[umairwarisc944]

Great post! Assigning categories to a product in a REST API helps organize items and makes searching easier. This is useful for online stores and apps to sort products better!