[FromQuery]the attribute processes the request parameters, i.e. key-value pairs after "?" in the URI.
[FromRoute]the attribute processes route parameters going up to "?" in the URI, i.e. in the path parameters.
, "orders/{id}", "id" - , - "orders/123? showHistory = true", "showHistory" .
[FromUri] Web API [FromQuery] ASP.NET Core MVC.