Signalr Return Model Object - json

Question

The story is that, I have ROOM Model class. I want to return json with using Signalr. Is it possible ? If it is, how can i use it ?
PS: And I know that I dont return room objet to clients.
public List<RoomModel> GetRooms()
{
GameUser user = _gameService.GetUserByClientId(Context.ConnectionId);
var room = _gameService.GetAllowedRooms(user).Select(r => new RoomModel
{
Name = r.Name,
Count = 0,
Private = r.Private,
Closed = r.Closed,
}).ToList();
return room;
}

Answer 1

SignalR will automatically serialize your objects when you are sending them over to client. (I assume your client is javascript.)
As you can see in this example They are sending ShapeModel complex object to be processed in javascript. The serialization is all automated.
If your method from your example is a hub method, I suggest you end it differently. Instead of returning value, you would probably call a client event. So:
public class RoomHub : Hub {
public void GetRooms() {
List<Room> rooms = new List<Room>();
rooms.Add( new Room{ Name = "Room1", Count = 12, Closed = true, Private = false});
rooms.Add( new Room{ Name = "Room2", Count = 20, Closed = false, Private = true});
// sending a list of room objects
Clients.Client(Context.ConnectionId).roomInfo(rooms);
}
}
// Room class (your complex object)
public class Room
{
public string Name { get; set; }
public int Count { get; set; }
public bool Private { get; set; }
public bool Closed { get; set; }
}
See details about calling from hub methods here.
Then javascript client:
var roomHub = $.connection.roomHub;
roomHub.client.roomInfo = function (rooms) {
// the parameter rooms is a serialized List<Room>
// which here will be an array of room objects.
console.log(rooms);
// You can read the room properties as well
for (i=0; i<rooms.length; ++i) {
console.log(rooms[i].Name);
console.log(rooms[i].Count);
}
}
$.connection.hub.start().done(function () {
console.log("You are connected");
roomHub.server.getRooms();
});
On my browser console: