post https://api.fabric.inc/v3/categories/batch
Items are organized within categories, which form the original hierarchical tree structure with multiple levels of nested categories.
This endpoint is used to add new categories within this structure.
Note:
1. Upon onboarding a new merchant to fabric Products, a root category is automatically generated.
2. This endpoint does not support adding of parent and its children categories at the same time.
3. You can add up to 25 categories.