public async Task <int> SubscribeForNotifications(string operationId)
{
await Groups.AddToGroupAsync(Context.ConnectionId, operationId);
return(LongRunningOperation.GetCurrentProgress(operationId));
}
public Task CancelProcessing(string operationId)
{
Clients.Group(operationId).SetMessage("Cancellation Requested...");
LongRunningOperation.CancelProcessing(operationId);
return(Task.CompletedTask);
}
