PayaGateway - Direct API - Get Charges - C#

main.cs

using System;
using System.Security.Cryptography;
using System.IO;
using System.Net;
using System.Text;


namespace PayaGateway_GET_Transactions
{
  class MainClass {
    public static void Main (string[] args) 
    {

  

          //TH - Test Data. This is the test account infomation we provide

          //in the API Sandbox. Please contact us at [email protected] if

          //you need a unique test account and receive the Merchant ID and

          //Merchant Key. In order to get your own Client ID and Client Secret

          //you must register at https://developer.sagepayments.com and setup

          //an App under My Apps. Please let us know if you have any questions.

          string merchantId = "173859436515"; //  use your own

          string merchantKey = "P1J2V8P2Q3D8"; // use your own

  

          //TH - The Client ID and Client Key should be hard coded and not displayed

          //in the production product. These are your API credentials used for

          //security and tracking purposes.

          string clientId = "W8yvKQ5XbvAn7dUDJeAnaWCEwA4yXEgd"; // use your own

          string clientSecret = "iLzODV5AUsCGWGkr"; // user your own

  

          //TH - Set the variables

          //string startDateX = startDate.ToShortDateString();
          string startDateX = "01-01-2020";

          //string endDateX = endDate.ToShortDateString();
          string endDateX = "01-01-2022";

          string url_sale = "https://api-cert.sagepayments.com/bankcard/v1/transactions?startDate=" +

              startDateX + "&endDate=" + endDateX + "&PageSize=250&PageNumber=1";

  

          string verb = "GET";

          string contentType = "application/json";

          string nl = System.Environment.NewLine;

  

          //TH - Building timestamp and nonce. Needs to be epoch in seconds.

          //TH - I am using the timestamp as my Nonce, but it is best to create

          //separate, unique value.

          TimeSpan t = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0);

          string timestamp = t.TotalSeconds.ToString();

          string nonce = timestamp;

  

  

          //TH - Build the Authorization

          string authToken = verb + url_sale + merchantId + nonce + timestamp;

          byte[] hash_authToken = new HMACSHA512(Encoding.ASCII.GetBytes(clientSecret)).ComputeHash(Encoding.ASCII.GetBytes(authToken));

          string hash64_authToken = Convert.ToBase64String(hash_authToken);

  

          //////////////////////////////////////////////////////////////////

          //TH - 20181003 - Added for TLS 1.0 shutdown requirements.

          ServicePointManager.Expect100Continue = true;

          ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;

          //////////////////////////////////////////////////////////////////

          try

          {

              //TH - Initiate Web Request

              var web_request = (HttpWebRequest)WebRequest.Create(url_sale);

  

              //TH - Set the headers and details

              var web_request_headers = web_request.Headers;

              //Console.WriteLine("Configuring web_request to include headers for Paya Direct API");

              Console.WriteLine("Configuring web_request to include headers for Paya Direct API");

              web_request_headers["clientId"] = clientId;

              web_request_headers["merchantId"] = merchantId;

              web_request_headers["merchantKey"] = merchantKey;

              web_request_headers["nonce"] = nonce;

              web_request_headers["timestamp"] = timestamp;

              web_request_headers["authorization"] = hash64_authToken;

              web_request.Method = verb;

  

              //TH - Send the data

              web_request.ContentType = contentType;

  

              //TH - Get the Response and Catch any errors.

              var web_response = (HttpWebResponse)web_request.GetResponse();

              Console.WriteLine(web_response.StatusDescription);

              var datastream = web_response.GetResponseStream();

  

              var reader = new StreamReader(datastream);

              string responseFromServer = reader.ReadToEnd();

              Console.WriteLine(responseFromServer);

              reader.Close();

              datastream.Close();

              web_response.Close();

  

              //TH - Display response.

              //TH - 20170304 - Added more detail to the displayed response.

              Console.WriteLine("Server Status Code: " + web_response.StatusCode + nl +

                  "Server Status: " + web_response.StatusDescription + nl +

                  "API Response: " + responseFromServer);

  

          }

          //TH - 20170304 - Added WebExecption to allow code to gather added detail from the exception.

          catch (WebException exception)

          {

              //TH - 20170304 - Added more detail regarding exception to gather the API response data.

              var sResponse = new StreamReader(exception.Response.GetResponseStream()).ReadToEnd();

              Console.WriteLine("Server Response: " + exception.Message + nl + nl +

                  "API Response: " + sResponse);

          }

  

          catch (Exception exception)

          {

              Console.WriteLine("Server Response: " + exception.Message);

          }
  }
  }
}