public async Task <IActionResult> SubscribeUpdates(CancellationToken cancellationToken)
{
if (!HttpContext.WebSockets.IsWebSocketRequest)
{
return(BadRequest());
}
var websocket = await HttpContext.WebSockets.AcceptWebSocketAsync();
var userId = _userManager.GetUserId(User);
var websocketHelper = new WebSocketHelper(websocket);
IEventAggregatorSubscription subscription = null;
try
{
subscription = _eventAggregator.Subscribe <UserNotificationsUpdatedEvent>(async evt =>
{
if (evt.UserId == userId)
{
await websocketHelper.Send("update");
}
});
while (!cancellationToken.IsCancellationRequested)
{
await Task.Delay(2000, cancellationToken);
}
}
finally
{
subscription?.Dispose();
await websocketHelper.DisposeAsync(CancellationToken.None);
}
return(new EmptyResult());
}
public ChannelSubscription(Channel <T> evts, IEventAggregatorSubscription innerSubscription, Func <T, Task> act, Logs logs)
{
_evts = evts;
_innerSubscription = innerSubscription;
_act = act;
_logs = logs;
_ = Listen();
}
