Assigning multiple roles to user in single api

[Rohit04061992]

As per scim compliance when user is being assigned to a role groups/id/member api is invoked , but if user has to be assigned multiple roles or permissions then the entire tx becomes very complex and it becomes more complex when certain roles are unassigned and certain are assigned to the user , can this be done in patch call for user where list of roles are provided and uaa internally does the delta assignment , in this way transaction management can be avoided at the clients side.