get https://rls.congacloud.com/api/catalog/v1/categories/
Retrieves the details of a category and its child categories by category ID and price list ID. The API returns such category details as category name, description, and hierarchy ID. The API also returns details of a sub-category's parent and child categories.
When you pass a category ID, the API retrieves all products associated with it in the price list. When you pass All as the category ID, the API retrieves all products across all categories for the price list.