public string LoadTransactions(EntranceTableData data)
        {
            if (data.Validation())
            {
                return(string.Format("- validation error -"));
            }

            return(JsonObjectHelper.Json(new StatisticManager().LoadTransactions(data)));
        }
        private Dictionary <string, string> RequestData()
        {
            var host = string.IsNullOrEmpty(_configurationFile.ElasticSearch.Host) ? DefaultHost : _configurationFile.ElasticSearch.Host;
            var port = _configurationFile.ElasticSearch.Port == 0 ? DefaultPort : _configurationFile.ElasticSearch.Port;

            var client   = new RestClient($"http://{host}:{port}");
            var request  = new RestRequest("/_nodes/stats");
            var response = client.Execute(request);

            var data = JsonObjectHelper.FlattenObject(response.Content);

            return(data);
        }