/// <summary>
/// Subscribes received ovserver to the given request, intended to be used for EventSource connections
/// </summary>
/// <param name="request">EventSource request</param>
/// <param name="observer">Observer that will treat events</param>
private void SubscribeToServerEvents(HttpJsonRequest request, IObserver <string> observer)
{
var serverPullTask = request.ServerPullAsync();
serverPullTask.Wait();
var serverEvents = serverPullTask.Result;
currentSubscription = serverEvents.Subscribe(observer);
}