Wordpress - Woocommerce wp_insert_post() 'post_category'

Question

I'm trying to import woocommerce products with wp_insert_post() function but i have problem with 'post_category'. My code is

$my_post = array(
  'post_content'   => $description, 
  'post_name'      =>  $product_name, 
  'post_title'     =>  $product_name, 
  'post_status'    => 'publish', 
  'post_type'      => 'product', 
  'post_author'    => 1, 
  'post_category'  =>  array(9,10)// ids from woocommerce categories
);

wp_insert_post( $my_post );

But categories are empty. I tried 'product_cat' => array(9,10) but nothing again. Can anyone help me?

Answer 1

You should use slug instead id:

wp_set_object_terms($post_id, get_term(9)->slug, 'product_cat', true);
wp_set_object_terms($post_id, get_term(16)->slug, 'product_cat', true);

If you put here new category slug, WordPress will create it, and attached product to this category.