Get functional rights via REST API?

Hey,

I'm porting an app from the old SOAP API to use the new REST API.

In the new REST API I can't seem to find a good way to figure out which Functional Rights the current user has without using the Dynamic provider to dig into the underlying table structure, like this.

/api/v1/Archive/Dynamic?$filter=UserRoleLink.associate_id equals 1665&$select=UserRoleLink.role_id.(FunctionRightRoleLink->roleId).functionRightId.(FunctionRight->FunctionRight_id).name

Is there a better way I'm not seeing?