public async Task Handle(PrintJobCreatedNotification notification, CancellationToken cancellationToken)
{
PrintJob job;
while ((job = await _printQueue.DequeueAsync(notification.PrinterId)) != null)
{
var clients = _hub.Clients.Group($"Printers:{notification.PrinterId}");
await clients.SendAsync("Print", job);
}
}
public async Task Hello(int terminalId)
{
var printerIds = await _db.Printers.Where(x => x.TerminalId == terminalId).Select(x => x.Id).ToListAsync();
foreach (var printerId in printerIds)
{
await Groups.AddToGroupAsync(Context.ConnectionId, $"Printers:{printerId}");
PrintJob job;
while ((job = await _printQueue.DequeueAsync(printerId)) != null)
{
await Clients.Caller.SendAsync("Print", job);
}
}
}