curl --request GET \
  --url https://api.headlesscommerce.io/v1/admin/categories \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": "<string>",
      "name": "<string>",
      "slug": "<string>",
      "description": "<string>",
      "parent_id": "<string>",
      "position": 123,
      "children": "<array>",
      "metadata": {},
      "created_at": "2023-11-07T05:31:56Z"
    }
  ]
}