Create Inventory

{
  "product_id": 0,
  "product_name": "string",
  "quantity": 0,
  "location": "string",
  "created_at": "2019-08-24T14:15:22Z",
  "updated_at": "2019-08-24T14:15:22Z",
  "price": 0,
  "category": "string",
  "id": 0
}