---
title: Additional Data
slug: indexing-apis/additional-data
docTags: 
createdAt: 2023-10-12T15:16:16.197Z
---



There might be cases where you need to index certain attributes only for front-end rendering purposes. E.g. You want to index a complex json object, which is not indexed or used for merchandising, but only to render in the frontend and used in JavaScript, then you can use the “additionalDataToReturn” attribute.

:::BlockQuote
\[
  \{
    "id": "1",
    "type": "KLEVU\_PRODUCT",
    "attributes": \{
      "name": \{ "default": "Product 1" },
       "brand" : "UCB",
       "size" : "s",
       "additionalDataToReturn": \{
        "myAttribute" : "my value",
        "border-color" : "red",
        "card-height" : "30px"
       }
    }
  }
]
:::

This will index a special attribute “**additionalDataToReturn**” in the product. In the Storefront API, request this attribute to be returned and you will get the data indexed as-is.