private async static Task InitialiseQueueAsync()
        {
            LogEvent(LoggingLevel.Info, $"Initialising Queue.");

            var awsOptions = ConfigurationHandler.Configuration.GetAWSOptions();
            var sqsClient  = awsOptions.CreateServiceClient <IAmazonSQS>();

            _queueHandler = new QueueHandler(sqsClient);

            _query = await _queueHandler.SubscribeToQueue();
        }