The active portal account must be licensed with the ArcGIS Knowledge user type extension to use Knowledge Graph Server services.
The domain resource allows you to update or delete a specific domain defined in a knowledge graph service's data model resource if you have sufficient privileges.
The response format. The only supported response format is html.
The following is a sample request URL to get information about the WarehouseType domain that is defined in the data model resource for a knowledge graph service named SupplyChain: