Direct Debit Authorization

1. directDebitAuthorization.cs

These four packages are required to be used.

Step 1. Create class file to store content of the web response.

2. directDebitAuthorization.aspx.cs

These 13 packages are required to be used.

Code in Common

(1). Check if user id and password is inside session. When the user id and password is inside user session, it will automatically populate into the user id and pin textbox, so that the user need not manually type his user id and password repeatedly.

Step 2. Store Details which entered by the user. If user id, password, and OTP exist in session, user need not enter again (refer to common staff).

Step 3. Create URL which will be post to the server. User inputs need to be stored in the class created, and serialize into JSON format. In this function, only header is needed.

Step 4. Post to the server, and store response. URL is sent using web request function, and a response will be send back from the server.

Step 5. Obtain error code. If error code is ‘010000’ which means invocation successful, populate attributes of the ‘creditTransfer’ class into the label. If error code is '010041', it means OTP has expired, and we will use the newOTP() function to prompt the user for the OTP again. Else, we will display the ErrorText and ErrorDetails.

The newOTP() function can be referred to under Common Stuff Section

Overview of directDebitAuthorization.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

namespace Demo

{

   public class ddAuthorization

   {

       public ddAuthorizationContent Content { get; set; }

   }

   public class ddAuthorizationContent

   {

       public ddAuthorizationServiceResponse ServiceResponse { get; set; }

   }

   public class ddAuthorizationServiceResponse

   {

       public DirectDebitAuthorizationID DirectDebitAuthorizationID { get; set; }

       public ServiceRespHeader ServiceRespHeader { get; set; }

   }

   public class DirectDebitAuthorizationID

   {

       public string _Content_ { get; set; }

   }

   public class ddAuthorizationServiceRespHeader

   {

       public string ErrorText { get; set; }

       public object ErrorDetails { get; set; }

       public string GlobalErrorID { get; set; }

   }

}

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Overview of directDebitAuthorization.aspx.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using DotNetOpenAuth.OAuth2;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using System.Collections.Specialized;

using System.Configuration;

using System.Net;

using System.IO;

using System.Windows.Forms;

using System.Data;

namespace Demo

{

   public partial class DirectDebitAuthorization : System.Web.UI.Page

   {

       protected void Page_Load(object sender, EventArgs e)

       {

           if (Session["userid"] != null)

           {

               txtUserID.Text = (string)Session["userid"];

               txtPassword.Text = (string)Session["pin"];

           }

       }

       protected void btnSend_Click(object sender, EventArgs e)

       {

           try

           {

               string userID = txtUserID.Text;

               Session["userid"] = userID;

               string pin = txtPassword.Text;

               Session["pin"] = pin;

               string customerAccID = txtCustomerAccountID.Text;

               string billingOrgAccID = txtBillingOrgAccountID.Text;

               string otp;

               if (Session["otp"] == null)

               {

                   otp = "";

               }

               else

               {

                   otp = Session["otp"].ToString();

               }

               var header = new HeaderJson();

               header.userID = userID;

               header.PIN = pin;

               header.serviceName = "directDebitAuthorization";

               header.OTP = otp;

               var headerJson = new HeaderJsonObject();

               headerJson.Header = header;

               string strHeader = JsonConvert.SerializeObject(headerJson);

               

               var content = new ContentJson();

               content.customerAccountID = customerAccID;

               content.billingOrgAccountID = billingOrgAccID;

               var contentJson = new ContentJsonObject();

               contentJson.Content = content;

               string strContent = JsonConvert.SerializeObject(contentJson);

               string url = "http://tbankonline.com/SMUtBank_API/Gateway?Header=" + strHeader + "&Content=" + strContent;

               //send web request and store response

               var webRequest = (HttpWebRequest)WebRequest.Create(url);

               webRequest.ContentType = "application/json";

               webRequest.Method = "POST";

               var result = "";

               var httpResponse = (HttpWebResponse)webRequest.GetResponse();

               using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))

               {

                   result = streamReader.ReadToEnd();

               }

               ddAuthorization dda = new ddAuthorization();

               dda = JsonConvert.DeserializeObject<ddAuthorization>(result);

               string ErrorID = dda.Content.ServiceResponse.ServiceRespHeader.GlobalErrorID?.ToString() ?? "-";

               if (ErrorID == "010000")

               {

                   lblDDAuthorizationID.Text = dda.Content.ServiceResponse.DirectDebitAuthorizationID._Content_.ToString();

               }

               else if (ErrorID == "010041")

               {

                   otp = utilities.newOTP();

                   Session["otp"] = otp;

               }

               else

               {

                   lblTest.Text = dda.Content.ServiceResponse.ServiceRespHeader.ErrorText.ToString();

                   string errorMessage = dda.Content.ServiceResponse.ServiceRespHeader.ErrorDetails.ToString();

                   MessageBox.Show(errorMessage);

               }

           }

           catch(Exception ex)

           {

               lblExceptionMsg.Text = ex.ToString();

           }

       }

   }

}

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