private async Task DirectConnectionLeaveGroup(string connectionString) { var serviceManager = new ServiceManagerBuilder().WithOptions(option => { option.ConnectionString = connectionString; option.ServiceTransportType = ServiceTransportType.Transient; }).Build(); var hubContext = await serviceManager.CreateHubContextAsync(SignalRConstants.DefaultRestHubName); if (_connections.Count >= _groupCount) { for (var i = 0; i < _connections.Count; i++) { var userId = SignalRUtils.GenClientUserIdFromConnectionIndex(_connectionIndex[i]); try { await hubContext.UserGroups.RemoveFromGroupAsync(userId, SignalRUtils.GroupName(_type, _connectionIndex[i] % _groupCount)); _statisticsCollector.IncreaseLeaveGroupSuccess(); } catch (Exception e) { _statisticsCollector.IncreaseLeaveGroupFail(); Log.Error($"Fail to leave group: {e.Message}"); } } } else { for (var i = 0; i < _groupCount; i++) { var userId = SignalRUtils.GenClientUserIdFromConnectionIndex(i); try { await hubContext.UserGroups.RemoveFromGroupAsync( userId, SignalRUtils.GroupName(_type, i)); _statisticsCollector.IncreaseLeaveGroupSuccess(); } catch (Exception e) { _statisticsCollector.IncreaseLeaveGroupFail(); Log.Error($"Fail to leave group: {e.Message}"); } } } }
public static void SetCallbackLeaveGroup( IList <IHubConnectionAdapter> connections, StatisticsCollector statisticsCollector) { foreach (var connection in connections) { connection.On(SignalRConstants.LeaveGroupCallbackName, () => { statisticsCollector.IncreaseLeaveGroupSuccess(); }); } }