SearchController.cs

        public SearchController(
            ILogger<SearchController> logger,
            Runtime runtime
            )
        {
            _logger = logger;
            _runtime = runtime;

            _cache = _runtime.QueueClient.CreateRPCEndpoint(
                _runtime.GetNest("cache"));
            _cache.TimedOut += CacheTimedOutHandler;
        }
    
        private void CacheTimedOutHandler(object sender, EventArgs e)
        {
            _logger.LogError("Cache timeout");            
        }