C#

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Get Direct Debit Authorization List



1. getDirectDebitAuthorizationListClass.cs



These five packages are required to be used.









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









2. getDirectDebitAuthorizationList.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. The response need to be deserialized into the ‘getDirectDebitAuthorizationList’ class.









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 getDirectDebitAuthorizationListClass.cs



using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using Newtonsoft.Json;


namespace Demo

{

   public class getDDAList

   {

       public DDAListContent Content { get; set; }

   }


   public class DDAListContent

   {

       public DDAListServiceResponse ServiceResponse { get; set; }

   }


   public class DDAListServiceResponse

   {

       public AuthorizationList AuthorizationList { get; set; }

       public DDAListServiceRespHeader ServiceRespHeader { get; set; }

   }


   public class AuthorizationList

   {

       [JsonConverter(typeof(ArrayConverter<Authorization>))]

       public List<Authorization> Authorization { get; set; }

   }


   public class Authorization

   {

       public string CreationDate { get; set; }

       public string BillingOrgBankCode { get; set; }

       public string BillingOrgAccountID { get; set; }

       public string BillingOrgID { get; set; }

       public string CustomerBankCode { get; set; }

       public string CustomerAccountID { get; set; }

       public string CustomerID { get; set; }

       public string DirectDebitAuthorizationID { get; set; }

   }


   public class DDAListServiceRespHeader

   {

       public string ErrorText { get; set; }

       public object ErrorDetails { get; set; }

       public string GlobalErrorID { get; set; }

   }

}



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Overview of  getDirectDebitAuthorizationList.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 getDirectDebitAuthorizationList : 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

           {

               //Store user input

               string userID = txtUserID.Text;

               Session["userid"] = userID;

               string pin = txtPassword.Text;

               Session["pin"] = pin;

               string otp;

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

               {

                   otp = "";

               }

               else

               {

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

               }


               var header = new HeaderJson();

               header.userID = userID;

               header.PIN = pin;

               header.serviceName = "getDirectDebitAuthorizationList";

               header.OTP = otp;


               var headerJson = new HeaderJsonObject();

               headerJson.Header = header;

               string strHeader = JsonConvert.SerializeObject(headerJson);


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


               //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();

               }


               getDDAList directDebitAuthorizationList = new getDDAList();

               directDebitAuthorizationList = JsonConvert.DeserializeObject<getDDAList>(result);


               string ErrorID = directDebitAuthorizationList.Content.ServiceResponse.ServiceRespHeader.GlobalErrorID.ToString();

               if (ErrorID == "010000")

               {

                   DataTable dt = new DataTable();

                   DataColumn col1 = new DataColumn("Customer ID", typeof(string));

                   DataColumn col2 = new DataColumn("Billing Org ID", typeof(string));

                   DataColumn col3 = new DataColumn("Customer Account ID", typeof(string));

                   DataColumn col4 = new DataColumn("Billing Org Account ID", typeof(string));

                   DataColumn col5 = new DataColumn("Creation Date", typeof(string));

                   DataColumn col6 = new DataColumn("Direct Debit Authorization ID", typeof(string));

                   dt.Columns.Add(col1);

                   dt.Columns.Add(col2);

                   dt.Columns.Add(col3);

                   dt.Columns.Add(col4);

                   dt.Columns.Add(col5);

                   dt.Columns.Add(col6);


                   int NumberOfAuthorization = directDebitAuthorizationList.Content.ServiceResponse.AuthorizationList.Authorization.Count();


                   for (int i = 0; i <= NumberOfAuthorization - 1; i++)

                   {

                       DataRow row = dt.NewRow();

                       dt.Rows.Add(row);

                       dt.Rows[i][col1] = directDebitAuthorizationList.Content.ServiceResponse.AuthorizationList.Authorization[i].CustomerID.ToString();

                       dt.Rows[i][col2] = directDebitAuthorizationList.Content.ServiceResponse.AuthorizationList.Authorization[i].BillingOrgID.ToString();

                       dt.Rows[i][col3] = directDebitAuthorizationList.Content.ServiceResponse.AuthorizationList.Authorization[i].CustomerAccountID.ToString();

                       dt.Rows[i][col4] = directDebitAuthorizationList.Content.ServiceResponse.AuthorizationList.Authorization[i].BillingOrgAccountID.ToString();

                       dt.Rows[i][col5] = directDebitAuthorizationList.Content.ServiceResponse.AuthorizationList.Authorization[i].CreationDate.ToString();

                       dt.Rows[i][col6] = directDebitAuthorizationList.Content.ServiceResponse.AuthorizationList.Authorization[i].DirectDebitAuthorizationID.ToString();

                   }


                   gvBeneficiaryList.DataSource = dt;

                   gvBeneficiaryList.DataBind();

               }

               else if (ErrorID == "010041")

               {

                   otp = utilities.newOTP();

                   Session["otp"] = otp;

               }

               else

               {

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

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

                   MessageBox.Show(errorMessage);

               }

           }

           catch (Exception ex)

           {

               lblExceptionMsg.Text = ex.ToString();

           }

       }

   }

}



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