property_item objects now return a type, next_url, and id.

[KoditkarVedant]

Property item lists now always have type property_item. Rollup aggregations are now returned inside that type.

Notion has also added the property id field and the next_url to fetch the next set of property items.

Here is an example of a previous rollup property_item list:

{
  "object": "list",
  "results": [
    {
      "object": "property_item",
      "type": "relation",
      "relation": {
        "id": "83f92c9d-523d-466e-8c1f-9bc2c25a99fe"
      }
    },
        ...
  ],
  "next_cursor": "some-next-cursor-value",
  "has_more": true,
  "rollup": {
    "type": "date",
    "date": {
      "start": "2021-10-07T14:42:00.000+00:00",
      "end": null
    },
    "function": "latest_date"
  },
  "type": "rollup"
}

Here is an example of the updated rollup property_item list:

{
  "object": "list",
  "results": [
    {
      "object": "property_item",
      "id": "xYz890",
      "type": "relation",
      "relation": {
        "id": "83f92c9d-523d-466e-8c1f-9bc2c25a99fe"
      }
    },
        ...
  ],
  "next_cursor": "some-next-cursor-value",
  "has_more": true,
  "type": "property_item",
  "property_item": {
    "id": "aBcD123"
    "next_url": "https://api.notion.com/v1/pages/b55c9c91-384d-452b-81db-d1ef79372b75/properties/aBcD123?start_cursor=some-next-cursor-value",
    "type": "rollup",
    "rollup": {
        "type": "date",
        "date": {
        "start": "2021-10-07T14:42:00.000+00:00",
        "end": null
        },
        "function": "latest_date"
        }
  },
  
}

Notion changelog: https://developers.notion.com/changelog/releasing-notion-version-2022-02-22