public RabbitEventBus AddConsumer( Func <byte[], Task> handler, Func <List <byte[]>, Task> batchHandler, string observerGroup) { var consumer = new RabbitConsumer( new List <Func <byte[], Task> > { handler }, new List <Func <List <byte[]>, Task> > { batchHandler }) { EventBus = this, QueueList = RouteList.Select(route => new QueueInfo { RoutingKey = route, Queue = $"{route}_{observerGroup}" }).ToList(), Config = ConsumerConfig }; Consumers.Add(consumer); return(this); }