Get Category Hierarchy

Example response

{
  "data": [
    {
      "id": 1,
      "name": "Mobile Devices",
      "subcategories": [
        {
          "id": 2,
          "name": "Smartphones",
          "subcategories": [
            {
              "id": 3,
              "name": "Android Phones"
            }
          ]
        }
      ]
    }
  ]
}