I'm trying to make sense of SnapDevelop's generated code. Right now for Sample Code = ModelStore where one action puzzles me.

[HttpPost("ModelStore")]
...
public ActionResult Update(IModelStore department)
...

ModelStore has internal state like reference to DataContext and info on original/current data values. REST call can only transfer the public properties.

I can see the purpose of such function inside the server-side code, but not at part of the REST API. So, my questions are:

1. Have I misunderstood this action completely?
2. Any good example of how to use it when called via REST?
3. If you want to pass list of departments in a REST call, why now simply use List?
   Server-side could then try to find each matching department to either update or insert depending on its PKEY value.

Any help greatly appreciated.