get https://api-gateway.walmart.com/v3/items/taxonomy
This request exposes the product type (PT) taxonomy that Walmart uses to classify items.
The GET Taxonomy API call provides the user with all product types (PTs) in their respective product type groups (PTGs).
The product type groups (PTGs) are then organized into categories.
JSON is the only format supported for the Expose product type taxonomy request (GET /v3/items/taxonomy).