public IEnumerable <NodeHeartbeatOutput> Create(NodeHeartbeatInput input)
        {
            if (input == null)
            {
                Logger.Error($"{nameof(input)} should not be null.");
                return(Enumerable.Empty <NodeHeartbeatOutput>());
            }
            CreateHeartbeat(input);
            RefreshOnlineStatus(input);
            DbContext.SaveChanges();
            var messages = _messageAppService.Consume(input.NodeId);

            return(Mapper.Map <IEnumerable <NodeHeartbeatOutput> >(messages));
        }