• Gets the URL to the thumbnail of an AGO item.

    Parameters

    • itemId: string

      Id of an item whose resources are sought

    • thumbnailUrlPart: string

      The partial name of the item's thumbnail as reported by the thumbnail property in the item's base section

    • isGroup: boolean

      Switch indicating if the item is a group

    • authentication: UserSession

      Credentials for the request to AGO

    Returns string

    URL string