public override async Task OnConnectedAsync()
{
var context = Context.GetHttpContext();
var uuid = context.Request.Query["uuid"];
if (string.IsNullOrEmpty(uuid))
{
Context.Abort(); // abort connection
return;
}
var connectionId = Context.ConnectionId;
await _userStore.AddConnectionAsync(uuid, connectionId);
//await _presenceService.AddConnectionAsync(uuid, connectionId);
}