Transaction

     public async Task<MidTransTransactionResponseModel> TransactionMidTrans(MidTransInputModel data)
        {
            MidTransRequestModel reqModel = new MidTransRequestModel();
            reqModel.transaction_details = data;



            RestClient rest = new RestClient(AppSettings.MidtransConfig.URL);

            RestRequest req = new RestRequest("transactions", Method.POST);

            req.AddHeader("Accept", "application/json");

            string auth = AppSettings.MidtransConfig.ServerKey.ToString();

            req.AddHeader("Content-Type", "application/json");
            req.AddHeader("Authorization", "Basic " + auth.Base64Encode());

            rest.Authenticator = new HttpBasicAuthenticator(AppSettings.MidtransConfig.ServerKey, "");

            string jsonObject = JsonConvert.SerializeObject(reqModel);

            req.AddParameter("application/json", jsonObject, ParameterType.RequestBody);

            TaskCompletionSource<IRestResponse> taskComplete = new TaskCompletionSource<IRestResponse>();

            var handle = rest.ExecuteAsync(req, r => taskComplete.SetResult(r)).WebRequest.GetResponse();

            RestResponse response = (RestResponse)(await taskComplete.Task);

            return JsonConvert.DeserializeObject<MidTransTransactionResponseModel>(response.Content);
        }