public async Task <IDictionary <string, object> > Do( IDictionary <string, object> stepParameters, IDictionary <string, object> pluginParameters) { try { Log.Information($"Dispose connections..."); // Get parameters stepParameters.TryGetTypedValue(SignalRConstants.Type, out string type, Convert.ToString); pluginParameters.TryGetTypedValue($"{SignalRConstants.ConnectionStore}.{type}", out IList <IHubConnectionAdapter> connections, (obj) => (IList <IHubConnectionAdapter>)obj); // Dispose HttpClients SignalRUtils.DiposeAllHttpClient(stepParameters, pluginParameters); // Dispose connections await Task.WhenAll(from connection in connections select connection.DisposeAsync()); return(null); } catch (Exception ex) { var message = $"Fail to dispose connections: {ex}"; Log.Error(message); throw; } }