curl --request POST \
  --url https://production.trackstarhq.com/wms/kits \
  --header 'Content-Type: application/json' \
  --header 'x-trackstar-access-token: <x-trackstar-access-token>' \
  --header 'x-trackstar-api-key: <x-trackstar-api-key>' \
  --data '{
  "trackstar_tags": [
    "tag1",
    "tag2",
    {
      "tag3": "value3"
    }
  ],
  "sku": "sku",
  "name": "name",
  "gtin": "gtin",
  "measurements": {
    "length": 1.5,
    "width": 1.5,
    "height": 1.5,
    "unit": "in",
    "weight": 2.5,
    "weight_unit": "lb"
  },
  "inventory_items": [
    {
      "inventory_item_id": "inventory_item_id",
      "sku": "sku",
      "unit_quantity": 1
    }
  ]
}'

{
  "data": {
    "id": "product_id",
    "warehouse_customer_id": "warehouse_customer_id",
    "created_date": "2022-01-01T00:00:00Z",
    "updated_date": "2022-01-02T05:05:05Z",
    "name": "name",
    "sku": "sku",
    "gtin": "gtin",
    "unit_price": 10.99,
    "inventory_items": [
      {
        "inventory_item_id": "id1",
        "sku": "sku1",
        "unit_quantity": 1
      },
      {
        "inventory_item_id": "id2",
        "sku": "sku2",
        "unit_quantity": 1
      }
    ],
    "is_kit": true,
    "active": true,
    "supplier": "supplier",
    "supplier_object": {
      "supplier_id": "supplier_id",
      "supplier_name": "supplier_name"
    },
    "country_of_origin": "USA",
    "harmonized_code": "123456",
    "supplier_products": [
      {
        "supplier_id": "id1",
        "supplier_name": "name1",
        "external_id": "ext_id1",
        "unit_cost": 1
      },
      {
        "supplier_id": "id2",
        "supplier_name": "name2",
        "external_id": "ext_id2",
        "unit_cost": 2.5
      }
    ],
    "external_system_url": "https://example.com/product/123",
    "trackstar_tags": [
      "tag1",
      "tag2",
      {
        "tag3": "value3"
      }
    ],
    "additional_fields": {
      "key": "value"
    }
  },
  "id": "id",
  "unused_fields": [
    "<string>"
  ]
}