public static Result Describe(string login, string token, string simOrChaarr) { // Use SecurityProtocolType.T1sl2 if needed for compatibility reasons ServicePointManager.Expect100Continue = true; ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12; string describeEndpoint = $"https://{ simOrChaarr}.future-processing.pl/describe?login={ login }&token={token}"; var describeClient = new RestClient(describeEndpoint); var describeRequest = RequestCreator.CreateGETRequest(); IRestResponse describeResponse = describeClient.Execute(describeRequest); if (describeResponse.StatusCode == HttpStatusCode.OK) { return(JsonConvert.DeserializeObject <Result> (describeResponse.Content)); } else { return(null); } }