public void Init() { var warehouses = _configuration.GetConfigSetting(ConfigSettingKeys.WarehouseList).Split(',').Select(v => v.Trim()); var filterClause = string.Join(" OR ", warehouses.Select(warehouse => $"WarehouseId = {warehouse}")); _topicSubscriber.Subscribe(new SubscriptionCreationArgs { ContractType = typeof(StockChangeEventV1), MessageHandler = HandleMessage, Filter = filterClause }); }