private static void SubscribeJson <T>(IObserver <T> observer,
string url,
IDictionary <string, string> parameters,
IProgress <Tuple <long, long> > progress = null)
{
var subscriptionKey = Guid.NewGuid();
var observable = ReactiveClient.Get <T>(url, parameters, progress);
var disposal = observable.Finally(() => CleanupSubscription(subscriptionKey)).Subscribe(observer);
lock (SyncRoot)
{
CurrentSubscriptions.Add(subscriptionKey, disposal);
}
}
