public string Subscribe()
{
try
{
icbs = OperationContext.Current.GetCallbackChannel <ICallBackService>();
subscribers.Add(icbs);
Console.WriteLine(icbs.ToString());
return("Successfully subscribed for weather updates!");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return(e.Message);
}
}
public string Unsubscribe()
{
try
{
icbs = OperationContext.Current.GetCallbackChannel <ICallBackService>();
lock (subscribers)
{
subscribers.Remove(icbs);
}
return("Successfully unsubscribed!");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return("Something went wrong! Try after some time.");
}
}
public CallBackController(ICallBackService service) => this.service = service;