- URL:
 - https://[root]/content
 - Methods:
 GET- Child Resources:
 - Listings, Features, User Content
 
Example usage
ArcGIS Online:
https://www.arcgis.com/sharing/rest/contentArcGIS Enterprise:
https://organization.example.com/<context>/sharing/rest/contentDescription
The Portal Content Root operation consists of items, user and group content, and feature operations. It is a placeholder URI in that there is no response available at this URI. It acts as a root to its child resources and operations. All resources and operations (other than publicly accessible items) under this URI require an authenticated user (or a user token).