Payment Csharp app1

README.txt

  AT&T API Samples - Payment app 1
 ------------------------------

This file describes how to set up, configure and run the C# Applications of the AT&T RESTFul sample applications. 
It covers all steps required to register the application on DevConnect and, based on the generated API keys and secrets, 
create and run one's own full-fledged sample applications.

  1. Configuration
  2. Installation
  3. Parameters
  4. Running the application


1. Configuration

  Configuration consists of a few steps necessary to get an application registered on DevConnect with the proper services and 
  endpoints, depending on the type of client-side application (autonomous/non-autonomous). 

  To register an application, go to https://devconnect-api.att.com/ and login with your valid username and password.
  Next, choose "My Apps" from the bar at the top of the page and click the "Setup a New Application" button. 

  Fill in the form, in particular all fields marked as "required".

  Be careful while filling in the "OAuth Redirect URL" field. It should contain the URL that the oAuth provider will redirect
  users to when he/she successfully authenticates and authorizes your application.

NOTE: You MUST select PAYMENT in the list of services under field 'Services' in order to use this sample application code. 

  Having your application registered, you will get back an important pair of data: an API key and Secret key. They are 
  necessary to get your applications working with the AT&T HTML5 APIs. See 'Adjusting parameters' below to learn how to use 
  these keys.

  Initially your newly registered application is restricted to the "Sandbox" environment only. To move it to production,
  you may promote it by clicking the "Promote to production" button. Notice that you will get a different API key and secret,
  so these values in your application should be adjusted accordingly.

  Depending on the kind of authentication used, an application may be based on either the Autonomous Client or the Web-Server 
  Client OAuth flow (see https://devconnect-api.att.com/docs/oauth-v1/client-credentials-grant-type or
  https://devconnect-api.att.com/docs/oauth-v1/authorization-code-grant-type respectively).


2. Installation

** Requirements

   1. To run the this sample application you need an IIS Server. 
   2. Change the value of "href" at the following line in Default.aspx to point to the location of the "common.css" of "style" folder:
	<link rel="stylesheet" type="text/css" href="../../style/common.css"/>
   3. Change the value of the "url" at the following line in common.css to point to the location of the "att.gif" of "images" folder.
	div#header { background:url(../images/att.gif) left center no-repeat; margin: 10px 5px}


3. Parameters

   
Each sample application contains a config.web file. It holds configurable parameters described in an easy to read format. 
Please populate the following parameters in config.web as specified below:

1) api_key                		: {set the value as per your registered application 'API key' field value} 


2) secret_key     	  		 : {set the value as per your registered application 'Secret key' field value} 

3) FQDN			  	 : https://api.att.com

4) scope				 : PAYMENT   

5) refundFile			: {set the value to file path which has read/write permissions}

6) Amount			: {set the value to decimal value}

7) Category			: {set the value to 1,3,4 or 5}

8) Channel			: {set the value to MOBILE_WEB}

9) MerchantPaymentRedirectUrl	 : {set the value to the payment app1 application url}

10) IsPurchaseOnNoActiveSubscription	 : {set the value to false}

11) SubscriptionRecurringNumber"	: {set the value to 9999}

12) SubscriptionRecurringPeriod	: {set the value to MONTHLY}

13) SubscriptionRecurringPeriodAmount	: {set the value to 1}

14) AccessTokenFilePath		: {set the value to the path of the file, which application creates and stores access token }

15) notaryURL				: {set the value to the notary app url}


4. Running the application

Notary application 1 is needed for this application.
Suppose you copied the sample app files in your IIS server webroot/payment/app1/ folder, In order to run the sample application, type in'http://IIS_HOSTNAME/payment/app1/Default.aspx'

Default.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml" lang="en"><head>
    <title>AT&T Sample Payment Application - Single Pay Application</title>
    <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type">
    <link rel="stylesheet" type="text/css" href="../../style/common.css"/ >
<body>

<div id="container">
<!-- open HEADER --><div id="header">

<div>
    <div id="hcRight">
        <asp:Label runat="server" Text="Label" ID="serverTimeLabel"></asp:Label>
    </div>
    <div id="hcLeft">Server Time:</div>
</div>
<div>
    <div id="hcRight"><script language="JavaScript" type="text/javascript">
                          var myDate = new Date();
                          document.write(myDate);
</script></div>
    <div id="hcLeft">Client Time:</div>
</div>
<div>
    <div id="hcRight"><script language="JavaScript" type="text/javascript">
                          document.write("" + navigator.userAgent);
</script></div>
	<div id="hcLeft">User Agent:</div>
</div>
<br clear="all" />
</div><!-- close HEADER -->

<div id="wrapper">
<div id="content">

<h1>AT&T Sample Payment Application - Single Pay Application</h1>
<h2>Feature 1: Create New Transaction</h2><br/>

</div>
</div>
<form id="form1" runat="server">
<div id="navigation">

<table border="0" width="100%">
  <tbody>
  <tr>
     <asp:RadioButtonList ID="Radio_TransactionProductType" runat="server" 
                            RepeatDirection="Vertical" Font-Names="Calibri" Font-Size="Small">
       <asp:ListItem Selected="True">Buy product 1 for $0.99</asp:ListItem>
       <asp:ListItem>Buy product 2 for $2.99m</asp:ListItem>
     </asp:RadioButtonList>
    </td>
  </tr>
  </tbody></table>
</div>
<div id="extra">
  <table>
  <tbody>
  <tr>
  	<td><br /><br />
          <asp:Button runat="server" Text="Buy Product" ID="newTransactionButton" 
            onclick="newTransactionButton_Click" /></td>
  </tr>
  </tbody></table>
</div>
<br clear="all" />
<div align="center">
    <asp:Panel runat="server" ID="newTransactionPanel">
    </asp:Panel></div>
    <div class="successWide" id="transactionSuccessTable" runat="server" visible="False">
            <strong>SUCCESS:</strong><br/>
            <strong>Merchant Transaction ID:</strong>
                            <asp:Label ID="lbltranid" runat="server" Text="" />
                        <br/>
            <strong>Transaction Auth Code:</strong>
                            <asp:Label ID="lbltrancode" runat="server" Text="" />
                        <br/>
                        <br />
            <strong>   </strong>
                                          <asp:Button runat="server" Text="View Notary" 
                ID="viewNotaryButton" onclick="Unnamed1_Click"/>
                        <br/>
                        &nbsp;</div>

<!--
<div class="successWide">
<strong>SUCCESS:</strong><br />
<strong>Merchant Transaction ID</strong> user573transaction1377<br/>
<strong>Transaction Auth Code</strong> 66574834711<br /><br/>
<form name="getNotaryDetails" action="notary.jsp">
    <input type="submit" name="getNotaryDetails" value="View Notary Details" />
</form>
</div><br/>
-->
<br clear="all" />
<div id="wrapper">
<div id="content">

<h2><br />
Feature 2: Get Transaction Status</h2>

</div>
</div>

<div id="navigation" align="center">

<table border="0" width="100%">
  <tbody>
  <tr>
    <td class="cell" align="left">
         <asp:RadioButtonList ID="Radio_TransactionStatus" runat="server" 
                            RepeatDirection="Vertical" Font-Names="Calibri" Font-Size="Small">
       <asp:ListItem ID="GetTransactionMerchantTransID" Selected="True">Merchant Transaction ID: </asp:ListItem>
       <asp:ListItem ID="GetTransactionAuthCode">Auth Code: </asp:ListItem>
       <asp:ListItem ID="GetTransactionTransID">Transaction ID: </asp:ListItem>
     </asp:RadioButtonList>
  </tr>
  </tbody></table>
</div>
<div id="extra">
  <table>
  <tbody>
  <tr>
  	<td><br /><br /><br />
          <asp:Button runat="server" Text="Get Transaction Status" 
            ID="getTransactionButton" onclick="getTransactionButton_Click" 
            /></td>
  </tr>
  </tbody></table>
</div>
<br clear="all" />

        <div class="successWide" id="tranGetStatusTable" runat="server" visible="False">
            <strong>SUCCESS:</strong><br/>
            <strong>Transaction ID:</strong>
                            <asp:Label ID="lblstatusTranId" runat="server" Text="" />
                        <br/>
            <strong>Merchant Transaction ID:</strong>
                            <asp:Label ID="lblstatusMerTranId" runat="server" Text="" />
        </div>
        <div align="center">
    <asp:Panel runat="server" ID="newTransactionStatusPanel">
    </asp:Panel></div>
<br clear="all" />

<div id="wrapper">
<div id="content">

<h2><br />Feature 3: Refund Transaction</h2>

</div>
</div>

<div id="navigation" align="center">
    <asp:Table id="refundTable" runat="server" width=750px cellpadding="1" cellspacing="1" border="0">
    </asp:Table>
</div>
<br clear="all" />
<div id="extra" >
    <asp:Button runat="server" Text="Refund Transaction" 
        onclick="Unnamed1_Click1" />
</div>
<br clear="all" />
<br clear="all" />
        <div class="successWide" id="refundSuccessTable" runat="server" visible="False">
        <strong>SUCCESS:</strong><br />
        <strong>Transaction ID </strong> <asp:Label ID="lbRefundTranID" runat="server" Text="" /><br />
        <strong>Transaction Status </strong> <asp:Label ID="lbRefundTranStatus" runat="server" Text="" /><br/>
        <strong>IsSuccess </strong> <asp:Label ID="lbRefundIsSuccess" runat="server" Text="" /><br/>
        <strong>Version </strong> <asp:Label ID="lbRefundVersion" runat="server" Text="" /><br/>
        </div>
        <div align="center">
    <asp:Panel runat="server" ID="refundPanel">
    </asp:Panel></div>
<br/>
<br clear="all" />
<div id="footer">

	<div style="float: right; width: 20%; font-size: 9px; text-align: right">Powered by AT&amp;T Virtual Mobile</div>
    <p>&#169; 2011 AT&amp;T Intellectual Property. All rights reserved.  <a href="http://developer.att.com/" target="_blank">http://developer.att.com</a>
<br>
The Application hosted on this site are working examples intended to be used for reference in creating products to consume AT&amp;T Services and  not meant to be used as part of your product.  The data in these pages is for test purposes only and intended only for use as a reference in how the services perform.
<br>
For download of tools and documentation, please go to <a href="https://devconnect-api.att.com/" target="_blank">https://devconnect-api.att.com</a>
<br>
For more information contact <a href="mailto:developer.support@att.com">developer.support@att.com</a>

</div>

</form>
</body></html>

Default.aspx.cs


using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
using System.Configuration;
using System.IO;
using System.Xml;
using System.Text;
using System.Web.Script.Serialization;
using System.Drawing;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;
using System.Text.RegularExpressions;

public partial class _Default : System.Web.UI.Page
{
    string shortCode, accessTokenFilePath, FQDN, oauthFlow, refundFile;
    string api_key, secret_key, auth_code, access_token, authorize_redirect_uri, scope, expiryMilliSeconds, refresh_token, lastTokenTakenTime, refreshTokenExpiryTime;
    Table successTable, failureTable;
    Table successTableGetTransaction, failureTableGetTransaction;
    string amount;
    Int32 category;
    string channel, description, merchantTransactionId, merchantProductId, merchantApplicationId;
    Uri merchantRedirectURI;
    string MerchantSubscriptionIdList, SubscriptionRecurringPeriod;
    Int32 SubscriptionRecurringNumber, SubscriptionRecurringPeriodAmount;
    string IsPurchaseOnNoActiveSubscription;
    DateTime transactionTime;
    string transactionTimeString;
    string payLoadStringFromRequest;
    string signedPayload, signedSignature;
    string notaryURL;
   // Button refundButton;
    int refundCountToDisplay = 0;
    List<KeyValuePair<string, string>> refundList = new List<KeyValuePair<string, string>>();
    bool LatestFive = true;
    protected void Page_Load(object sender, EventArgs e)
    {
        transactionSuccessTable.Visible = false;
        tranGetStatusTable.Visible = false;
        refundSuccessTable.Visible = false;
        DateTime currentServerTime = DateTime.UtcNow;
        serverTimeLabel.Text = String.Format("{0:ddd, MMM dd, yyyy HH:mm:ss}", currentServerTime) + " UTC";
        //refundButton = new Button();
        //refundButton.Click += new EventHandler(refundButtonClick);
        FQDN = ConfigurationManager.AppSettings["FQDN"].ToString();
        if (ConfigurationManager.AppSettings["FQDN"] == null)
        {
            drawPanelForFailure(newTransactionPanel, "FQDN is not defined in configuration file");
            return;
        }
        FQDN = ConfigurationManager.AppSettings["FQDN"].ToString();
        if (ConfigurationManager.AppSettings["api_key"] == null)
        {
            drawPanelForFailure(newTransactionPanel, "api_key is not defined in configuration file");
            return;
        }
        api_key = ConfigurationManager.AppSettings["api_key"].ToString();
        if (ConfigurationManager.AppSettings["secret_key"] == null)
        {
            drawPanelForFailure(newTransactionPanel, "secret_key is not defined in configuration file");
            return;
        }
        secret_key = ConfigurationManager.AppSettings["secret_key"].ToString();
        if (ConfigurationManager.AppSettings["AccessTokenFilePath"] != null)
        {
            accessTokenFilePath = ConfigurationManager.AppSettings["AccessTokenFilePath"];
        }
        else
        {
            accessTokenFilePath = "~\\PayApp1AccessToken.txt";
        }
        if (ConfigurationManager.AppSettings["refundFile"] != null)
        {
            refundFile = ConfigurationManager.AppSettings["refundFile"];
        }
        else
        {
            refundFile = "~\\refundFile.txt";
        }

        if (ConfigurationManager.AppSettings["refundCountToDisplay"] != null)
        {
            refundCountToDisplay = Convert.ToInt32(ConfigurationManager.AppSettings["refundCountToDisplay"]);
        }
        else
        {
            refundCountToDisplay = 5;
        }

        if (ConfigurationManager.AppSettings["scope"] == null)
        {
            scope = "PAYMENT";
        }
        else
        {
            scope = ConfigurationManager.AppSettings["scope"].ToString();
        }
        if (ConfigurationManager.AppSettings["DisableLatestFive"] != null)
        {
            LatestFive = false;
        }
        if (ConfigurationManager.AppSettings["notaryURL"] == null)
        {
            drawPanelForFailure(newTransactionPanel, "notaryURL is not defined in configuration file");
            return;
        }
        if (ConfigurationManager.AppSettings["MerchantPaymentRedirectUrl"] == null)
        {
            drawPanelForFailure(newTransactionPanel, "MerchantPaymentRedirectUrl is not defined in configuration file");
            return;
        }
        merchantRedirectURI = new Uri(ConfigurationManager.AppSettings["MerchantPaymentRedirectUrl"]);
        notaryURL = ConfigurationManager.AppSettings["notaryURL"];
        if ((Request["ret_signed_payload"] != null) && (Request["ret_signature"] != null))
        {
            signedPayload = Request["ret_signed_payload"].ToString();
            signedSignature = Request["ret_signature"].ToString();
            Session["signedPayLoad"] = signedPayload.ToString();
            Session["signedSignature"] = signedSignature.ToString();
            processNotaryResponse();
        }
        else if ((Request["TransactionAuthCode"] != null) && (Session["merTranId"] != null))
        {
            processCreateTransactionResponse();
        }
        else if ( (Request["shown_notary"] != null) && (Session["processNotary"] != null) )
        {
            Session["processNotary"] = null;
            GetTransactionMerchantTransID.Text = "Merchant Transaction ID: " + Session["tempMerTranId"].ToString();
            GetTransactionAuthCode.Text = "Auth Code: " + Session["TranAuthCode"].ToString();
        }
        refundTable.Controls.Clear();
        drawRefundSection(false);
        return;
    }
    private void readTransactionParametersFromConfigurationFile()
    {
        transactionTime = DateTime.UtcNow;
        transactionTimeString = String.Format("{0:dddMMMddyyyyHHmmss}", transactionTime);
        if (Radio_TransactionProductType.SelectedIndex == 0)
            amount = "0.99";
        else if (Radio_TransactionProductType.SelectedIndex == 1)
            amount = "2.99";
        Session["tranType"] = Radio_TransactionProductType.SelectedIndex.ToString();
        if (ConfigurationManager.AppSettings["Category"] == null)
        {
            drawPanelForFailure(newTransactionPanel, "Category is not defined in configuration file");
            return;
        }
        category = Convert.ToInt32(ConfigurationManager.AppSettings["Category"]);
        if (ConfigurationManager.AppSettings["Channel"] == null)
        {
            channel = "MOBILE_WEB";
        }
        else
        {
            channel = ConfigurationManager.AppSettings["Channel"];
        }
        description = "TrDesc" + transactionTimeString;
        merchantTransactionId = "TrId" + transactionTimeString;
        Session["merTranId"] = merchantTransactionId.ToString();
        merchantProductId = "ProdId" + transactionTimeString;
        merchantApplicationId = "MerAppId" + transactionTimeString;
    }


    private void processNotaryResponse()
    {
        if (Session["tranType"] != null)
        {
            Radio_TransactionProductType.SelectedIndex = Convert.ToInt32(Session["tranType"].ToString());
            Session["tranType"] = null;
        }
        Response.Redirect(FQDN + "/Commerce/Payment/Rest/2/Transactions?clientid=" + api_key.ToString() + "&SignedPaymentDetail=" + signedPayload.ToString() + "&Signature=" + signedSignature.ToString());

    }

    public void processCreateTransactionResponse()
    {
        lbltrancode.Text = Request["TransactionAuthCode"].ToString();
        lbltranid.Text = Session["merTranId"].ToString();
        transactionSuccessTable.Visible = true;
        GetTransactionMerchantTransID.Text = "Merchant Transaction ID: " + Session["merTranId"].ToString();
        GetTransactionAuthCode.Text = "Auth Code: " + Request["TransactionAuthCode"].ToString();
        GetTransactionTransID.Text = "Transaction ID: ";
        Session["tempMerTranId"] = Session["merTranId"].ToString();
        Session["merTranId"] = null;
        Session["TranAuthCode"] = Request["TransactionAuthCode"].ToString();
        return;
    }
    //"\",\"MerchantApplicationId\":\"" + merchantApplicationId.ToString() +
    protected void newTransactionButton_Click(object sender, EventArgs e)
    {
        readTransactionParametersFromConfigurationFile();
        string payLoadString = "{\"Amount\":" + amount.ToString() + ",\"Category\":" + category.ToString() + ",\"Channel\":\"" +
                        channel.ToString() + "\",\"Description\":\"" + description.ToString() + "\",\"MerchantTransactionId\":\""
                        + merchantTransactionId.ToString() + "\",\"MerchantProductId\":\"" + merchantProductId.ToString()
                        + "\",\"MerchantPaymentRedirectUrl\":\"" + merchantRedirectURI.ToString() + "\"}";
        Session["payloadData"] = payLoadString.ToString();
        //string returnURL = "https://wincode-api-att.com/BF_R2_Production_Csharp_Apps/payment/app1/Default.aspx";
        Response.Redirect(notaryURL.ToString() + "?request_to_sign=" + payLoadString.ToString() + "&goBackURL=" + merchantRedirectURI.ToString() + "&api_key=" + api_key.ToString() + "&secret_key=" + secret_key.ToString());
    }
    /* This function draws the success table */
    private void drawPanelForSuccess(Panel panelParam)
    {
        successTable = new Table();
        successTable.Font.Name = "Sans-serif";
        successTable.Font.Size = 8;
        successTable.BorderStyle = BorderStyle.Outset;
        successTable.Width = Unit.Pixel(650);
        TableRow rowOne = new TableRow();
        TableCell rowOneCellOne = new TableCell();
        rowOneCellOne.Font.Bold = true;
        rowOneCellOne.Text = "SUCCESS:";
        rowOne.Controls.Add(rowOneCellOne);
        successTable.Controls.Add(rowOne);
        successTable.BorderWidth = 2;
        successTable.BorderColor = Color.DarkGreen;
        successTable.BackColor = System.Drawing.ColorTranslator.FromHtml("#cfc");
        panelParam.Controls.Add(successTable);
    }
    /*This function adds row to the success table */
    private void addRowToSuccessPanel(Panel panelParam, string attribute, string value)
    {
        TableRow row = new TableRow();
        TableCell cellOne = new TableCell();
        cellOne.Text = attribute.ToString();
        cellOne.Font.Bold = true;
        row.Controls.Add(cellOne);
        TableCell cellTwo = new TableCell();
        cellTwo.Text = value.ToString();
        row.Controls.Add(cellTwo);
        successTable.Controls.Add(row);
    }
    /* This function draws error table */
    private void drawPanelForFailure(Panel panelParam, string message)
    {
        failureTable = new Table();
        failureTable.Font.Name = "Sans-serif";
        failureTable.Font.Size = 8;
        failureTable.BorderStyle = BorderStyle.Outset;
        failureTable.Width = Unit.Pixel(650);
        TableRow rowOne = new TableRow();
        TableCell rowOneCellOne = new TableCell();
        rowOneCellOne.Font.Bold = true;
        rowOneCellOne.Text = "ERROR:";
        rowOne.Controls.Add(rowOneCellOne);
        failureTable.Controls.Add(rowOne);
        TableRow rowTwo = new TableRow();
        TableCell rowTwoCellOne = new TableCell();
        rowTwoCellOne.Text = message.ToString();
        rowTwo.Controls.Add(rowTwoCellOne);
        failureTable.Controls.Add(rowTwo);
        failureTable.BorderWidth = 2;
        failureTable.BorderColor = Color.Red;
        failureTable.BackColor = System.Drawing.ColorTranslator.FromHtml("#fcc");
        panelParam.Controls.Add(failureTable);
    }
    protected void getTransactionButton_Click(object sender, EventArgs e)
    {
        try {
        string keyValue = "";
        string resourcePathString = "";
        if (Radio_TransactionStatus.SelectedIndex == 0)
        {
            keyValue = GetTransactionMerchantTransID.Text.ToString().Replace("Merchant Transaction ID: ","");
            if (keyValue.Length == 0)
            {
                //writeRefundToFile("a", "kdsfaksdf;akfjf");
                //Response.Redirect(Request.Url.ToString());
                return;
            }
            resourcePathString = "" + FQDN + "/Commerce/Payment/Rest/2/Transactions/MerchantTransactionId/" + keyValue.ToString();
        }
        if (Radio_TransactionStatus.SelectedIndex == 1)
        {
            keyValue = GetTransactionAuthCode.Text.ToString().Replace("Auth Code: ", "");
            if (keyValue.Length == 0)
                return;
            resourcePathString = "" + FQDN + "/Commerce/Payment/Rest/2/Transactions/TransactionAuthCode/" + keyValue.ToString();
        }
        if (Radio_TransactionStatus.SelectedIndex == 2)
        {
            keyValue = GetTransactionTransID.Text.ToString().Replace("Transaction ID: ", "");
            if (keyValue.Length == 0)
                return;
            resourcePathString = "" + FQDN + "/Commerce/Payment/Rest/2/Transactions/TransactionId/" + keyValue.ToString();
        }
        if (readAndGetAccessToken(newTransactionStatusPanel) == true)
        {
            if (access_token == null || access_token.Length <= 0)
            {
                return;
            }
            //String getTransactionStatusResponseData;
            resourcePathString = resourcePathString + "?access_token=" + access_token.ToString();
            //HttpWebRequest objRequest = (HttpWebRequest) System.Net.WebRequest.Create("" + FQDN + "/Commerce/Payment/Rest/2/Transactions/TransactionAuthCode/" + Session["TranAuthCode"].ToString() + "?access_token=" + access_token.ToString());
            HttpWebRequest objRequest = (HttpWebRequest)System.Net.WebRequest.Create(resourcePathString);
            objRequest.Method = "GET";
            HttpWebResponse getTransactionStatusResponseObject = (HttpWebResponse) objRequest.GetResponse();
            using (StreamReader getTransactionStatusResponseStream = new StreamReader(getTransactionStatusResponseObject.GetResponseStream()))
            {
                String getTransactionStatusResponseData = getTransactionStatusResponseStream.ReadToEnd();
                JavaScriptSerializer deserializeJsonObject = new JavaScriptSerializer();
                transactionResponse deserializedJsonObj = (transactionResponse)deserializeJsonObject.Deserialize(getTransactionStatusResponseData, typeof(transactionResponse));
                GetTransactionTransID.Text = "Transaction ID: " + deserializedJsonObj.TransactionId.ToString();
                lblstatusTranId.Text = deserializedJsonObj.TransactionId.ToString();
                lblstatusMerTranId.Text = deserializedJsonObj.MerchantTransactionId.ToString();
                //drawPanelForFailure(newTransactionStatusPanel, getTransactionStatusResponseData);
                if (checkItemInRefundFile(deserializedJsonObj.TransactionId.ToString(), deserializedJsonObj.MerchantTransactionId.ToString()) == false)
                {
                    writeRefundToFile(deserializedJsonObj.TransactionId.ToString(), deserializedJsonObj.MerchantTransactionId.ToString());
                    //clearRefundTable();
                }
                refundTable.Controls.Clear();
                drawRefundSection(false);
                tranGetStatusTable.Visible = true;
                drawPanelForGetTransactionSuccess(newTransactionStatusPanel);
                addRowToGetTransactionSuccessPanel(newTransactionStatusPanel, "Amount", deserializedJsonObj.Amount.ToString());
                addRowToGetTransactionSuccessPanel(newTransactionStatusPanel, "Channel ", deserializedJsonObj.Channel.ToString());
                addRowToGetTransactionSuccessPanel(newTransactionStatusPanel, "ConsumerId", deserializedJsonObj.ConsumerId.ToString());
                addRowToGetTransactionSuccessPanel(newTransactionStatusPanel, "ContentCategory", deserializedJsonObj.ContentCategory.ToString());
                addRowToGetTransactionSuccessPanel(newTransactionStatusPanel, "Currency", deserializedJsonObj.Currency.ToString());
                addRowToGetTransactionSuccessPanel(newTransactionStatusPanel, "Description", deserializedJsonObj.Description.ToString());
                addRowToGetTransactionSuccessPanel(newTransactionStatusPanel, "MerchantApplicationId", deserializedJsonObj.MerchantApplicationId.ToString());
                addRowToGetTransactionSuccessPanel(newTransactionStatusPanel, "MerchantIdentifier", deserializedJsonObj.MerchantIdentifier.ToString());
                addRowToGetTransactionSuccessPanel(newTransactionStatusPanel, "MerchantProductId", deserializedJsonObj.MerchantProductId.ToString());
                addRowToGetTransactionSuccessPanel(newTransactionStatusPanel, "IsSuccess", deserializedJsonObj.IsSuccess.ToString());
                addRowToGetTransactionSuccessPanel(newTransactionStatusPanel, "TransactionStatus", deserializedJsonObj.TransactionStatus.ToString());
                addRowToGetTransactionSuccessPanel(newTransactionStatusPanel, "TransactionType", deserializedJsonObj.TransactionType.ToString());
                addRowToGetTransactionSuccessPanel(newTransactionStatusPanel, "Version", deserializedJsonObj.Version.ToString());
                getTransactionStatusResponseStream.Close();
            }
        }
        }
        catch(Exception ex)
        {
            drawPanelForFailure(newTransactionStatusPanel, ex.ToString());
        }

    }
    private void drawPanelForGetTransactionSuccess(Panel panelParam)
    {
        successTableGetTransaction = new Table();
        successTableGetTransaction.Font.Name = "Sans-serif";
        successTableGetTransaction.Font.Size = 8;
        successTableGetTransaction.Width = Unit.Pixel(650);
        TableRow rowOne = new TableRow();
        TableCell rowOneCellOne = new TableCell();
        rowOneCellOne.Font.Bold = true;
        rowOneCellOne.HorizontalAlign = HorizontalAlign.Right;
        rowOneCellOne.Text = "Parameter";
        rowOneCellOne.Width = Unit.Pixel(300);
        rowOne.Controls.Add(rowOneCellOne);
        TableCell rowOneCellTwo = new TableCell();
        rowOneCellTwo.Width = Unit.Pixel(50);
        rowOne.Controls.Add(rowOneCellTwo);

        TableCell rowOneCellThree = new TableCell();
        rowOneCellThree.Font.Bold = true;
        rowOneCellThree.HorizontalAlign = HorizontalAlign.Left;
        rowOneCellThree.Text = "Value";
        rowOneCellThree.Width = Unit.Pixel(300);
        rowOne.Controls.Add(rowOneCellThree);
        successTableGetTransaction.Controls.Add(rowOne);
        panelParam.Controls.Add(successTableGetTransaction);
    }
    /*This function adds row to the success table */
    private void addRowToGetTransactionSuccessPanel(Panel panelParam, string attribute, string value)
    {
        TableRow row = new TableRow();
        TableCell cellOne = new TableCell();
        cellOne.HorizontalAlign = HorizontalAlign.Right;
        cellOne.Text = attribute.ToString();
        cellOne.Width = Unit.Pixel(300);
        row.Controls.Add(cellOne);
        TableCell cellTwo = new TableCell();
        cellTwo.Width = Unit.Pixel(50);
        row.Controls.Add(cellTwo);
        TableCell cellThree = new TableCell();
        cellThree.HorizontalAlign = HorizontalAlign.Left;
        cellThree.Text = value.ToString();
        cellThree.Width = Unit.Pixel(300);
        row.Controls.Add(cellThree);
        successTableGetTransaction.Controls.Add(row);
    }

    protected void Unnamed1_Click(object sender, EventArgs e)
    {
        if ((Session["payloadData"] != null) && (Session["signedPayLoad"] != null) && (Session["signedSignature"] != null))
        {
            Session["processNotary"] = "notary";
            Response.Redirect(notaryURL.ToString() + "?signed_payload=" + Session["signedPayLoad"].ToString() + "&goBackURL=" + merchantRedirectURI.ToString() + "&signed_signature=" + Session["signedSignature"].ToString() + "&signed_request=" + Session["payloadData"].ToString());
        }
    }

    /* This function reads the Access Token File and stores the values of access token, expiry seconds
 * refresh token, last access token time and refresh token expiry time
 * This funciton returns true, if access token file and all others attributes read successfully otherwise returns false
 */
    public bool readAccessTokenFile()
    {
        try
        {
            FileStream file = new FileStream(Request.MapPath(accessTokenFilePath), FileMode.OpenOrCreate, FileAccess.Read);
            StreamReader sr = new StreamReader(file);
            access_token = sr.ReadLine();
            expiryMilliSeconds = sr.ReadLine();
            refresh_token = sr.ReadLine();
            lastTokenTakenTime = sr.ReadLine();
            refreshTokenExpiryTime = sr.ReadLine();
            sr.Close();
            file.Close();
        }
        catch (Exception ex)
        {
            return false;
        }
        if ((access_token == null) || (expiryMilliSeconds == null) || (refresh_token == null) || (lastTokenTakenTime == null) || (refreshTokenExpiryTime == null))
        {
            return false;
        }
        return true;
    }

    /* This function validates the expiry of the access token and refresh token,
     * function compares the current time with the refresh token taken time, if current time is greater then 
     * returns INVALID_REFRESH_TOKEN
     * function compares the difference of last access token taken time and the current time with the expiry seconds, if its more,
     * funciton returns INVALID_ACCESS_TOKEN
     * otherwise returns VALID_ACCESS_TOKEN
    */
    public string isTokenValid()
    {
        try
        {

            DateTime currentServerTime = DateTime.UtcNow.ToLocalTime();
            DateTime lastRefreshTokenTime = DateTime.Parse(refreshTokenExpiryTime);
            TimeSpan refreshSpan = currentServerTime.Subtract(lastRefreshTokenTime);
            if (currentServerTime >= lastRefreshTokenTime)
            {
                return "INVALID_ACCESS_TOKEN";
            }
            DateTime lastTokenTime = DateTime.Parse(lastTokenTakenTime);
            TimeSpan tokenSpan = currentServerTime.Subtract(lastTokenTime);
            if (((tokenSpan.TotalSeconds)) > Convert.ToInt32(expiryMilliSeconds))
            {
                return "REFRESH_ACCESS_TOKEN";
            }
            else
            {
                return "VALID_ACCESS_TOKEN";
            }
        }
        catch (Exception ex)
        {
            return "INVALID_ACCESS_TOKEN";
        }
    }


    /* This function get the access token based on the type parameter type values.
     * If type value is 1, access token is fetch for client credential flow
     * If type value is 2, access token is fetch for client credential flow based on the exisiting refresh token
     */
    public bool getAccessToken(int type, Panel panelParam)
    {
        /*  This is client credential flow: */
        if (type == 1)
        {
            try
            {
                DateTime currentServerTime = DateTime.UtcNow.ToLocalTime();
                string OauthURL;
                OauthURL = "" + FQDN + "/oauth/token";
                WebRequest accessTokenRequest = System.Net.HttpWebRequest.Create(OauthURL);
                accessTokenRequest.Method = "POST";
                string oauthParameters = "client_id=" + api_key.ToString() + "&client_secret=" + secret_key.ToString() + "&grant_type=client_credentials&scope=PAYMENT";
                accessTokenRequest.ContentType = "application/x-www-form-urlencoded";
                //sendSmsRequestObject.Accept = "application/json";
                UTF8Encoding encoding = new UTF8Encoding();
                byte[] postBytes = encoding.GetBytes(oauthParameters);
                accessTokenRequest.ContentLength = postBytes.Length;
                Stream postStream = accessTokenRequest.GetRequestStream();
                postStream.Write(postBytes, 0, postBytes.Length);
                postStream.Close();
                WebResponse accessTokenResponse = accessTokenRequest.GetResponse();
                using (StreamReader accessTokenResponseStream = new StreamReader(accessTokenResponse.GetResponseStream()))
                {
                    string jsonAccessToken = accessTokenResponseStream.ReadToEnd().ToString();
                    JavaScriptSerializer deserializeJsonObject = new JavaScriptSerializer();
                    AccessTokenResponse deserializedJsonObj = (AccessTokenResponse)deserializeJsonObject.Deserialize(jsonAccessToken, typeof(AccessTokenResponse));
                    access_token = deserializedJsonObj.access_token.ToString();
                    expiryMilliSeconds = deserializedJsonObj.expires_in.ToString();
                    refresh_token = deserializedJsonObj.refresh_token.ToString();
                    FileStream file = new FileStream(Request.MapPath(accessTokenFilePath), FileMode.OpenOrCreate, FileAccess.Write);
                    StreamWriter sw = new StreamWriter(file);
                    sw.WriteLine(access_token);
                    sw.WriteLine(expiryMilliSeconds);
                    sw.WriteLine(refresh_token);
                    sw.WriteLine(currentServerTime.ToLongDateString() + " " + currentServerTime.ToLongTimeString());
                    lastTokenTakenTime = currentServerTime.ToLongDateString() + " " + currentServerTime.ToLongTimeString();
                    //Refresh token valids for 24 hours
                    DateTime refreshExpiry = currentServerTime.AddHours(24);
                    refreshTokenExpiryTime = refreshExpiry.ToLongDateString() + " " + refreshExpiry.ToLongTimeString();
                    sw.WriteLine(refreshExpiry.ToLongDateString() + " " + refreshExpiry.ToLongTimeString());
                    sw.Close();
                    file.Close();
                    // Close and clean up the StreamReader
                    accessTokenResponseStream.Close();
                    return true;
                }
            }
            catch (Exception ex)
            {
                drawPanelForFailure(panelParam, ex.ToString());
                return false;
            }
        }
        else if (type == 2)
        {
            try
            {
                DateTime currentServerTime = DateTime.UtcNow.ToLocalTime();
                string OauthURL;
                OauthURL = "" + FQDN + "/oauth/token";
                WebRequest accessTokenRequest = System.Net.HttpWebRequest.Create(OauthURL);
                accessTokenRequest.Method = "POST";
                string oauthParameters = "client_id=" + api_key.ToString() + "&client_secret=" + secret_key.ToString() + "&grant_type=refresh_token" + "&refresh_token=" + refresh_token.ToString();
                accessTokenRequest.ContentType = "application/x-www-form-urlencoded";
                //sendSmsRequestObject.Accept = "application/json";
                UTF8Encoding encoding = new UTF8Encoding();
                byte[] postBytes = encoding.GetBytes(oauthParameters);
                accessTokenRequest.ContentLength = postBytes.Length;
                Stream postStream = accessTokenRequest.GetRequestStream();
                postStream.Write(postBytes, 0, postBytes.Length);
                postStream.Close();
                WebResponse accessTokenResponse = accessTokenRequest.GetResponse();
                using (StreamReader accessTokenResponseStream = new StreamReader(accessTokenResponse.GetResponseStream()))
                {
                    string access_token_json = accessTokenResponseStream.ReadToEnd().ToString();
                    JavaScriptSerializer deserializeJsonObject = new JavaScriptSerializer();
                    AccessTokenResponse deserializedJsonObj = (AccessTokenResponse)deserializeJsonObject.Deserialize(access_token_json, typeof(AccessTokenResponse));
                    access_token = deserializedJsonObj.access_token.ToString();
                    expiryMilliSeconds = deserializedJsonObj.expires_in.ToString();
                    refresh_token = deserializedJsonObj.refresh_token.ToString();
                    FileStream file = new FileStream(Request.MapPath(accessTokenFilePath), FileMode.OpenOrCreate, FileAccess.Write);
                    StreamWriter sw = new StreamWriter(file);
                    sw.WriteLine(access_token);
                    sw.WriteLine(expiryMilliSeconds);
                    sw.WriteLine(refresh_token);
                    sw.WriteLine(currentServerTime.ToLongDateString() + " " + currentServerTime.ToLongTimeString());
                    lastTokenTakenTime = currentServerTime.ToLongDateString() + " " + currentServerTime.ToLongTimeString();
                    //Refresh token valids for 24 hours
                    DateTime refreshExpiry = currentServerTime.AddHours(24);
                    refreshTokenExpiryTime = refreshExpiry.ToLongDateString() + " " + refreshExpiry.ToLongTimeString();
                    sw.WriteLine(refreshExpiry.ToLongDateString() + " " + refreshExpiry.ToLongTimeString());
                    sw.Close();
                    file.Close();
                    accessTokenResponseStream.Close();
                    return true;
                }
            }
            catch (Exception ex)
            {
                drawPanelForFailure(panelParam, ex.ToString());
                return false;
            }
        }
        return false;
    }

    /* This function is used to neglect the ssl handshake error with authentication server */

    public static void BypassCertificateError()
    {
        ServicePointManager.ServerCertificateValidationCallback +=
            delegate(Object sender1, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
            {
                return true;
            };
    }
    /*
    public void addButtonToRefundSection(string caption)
    {
        TableRow rowOne = new TableRow();
        TableCell cellOne = new TableCell();
        cellOne.HorizontalAlign = HorizontalAlign.Right;
        cellOne.CssClass = "cell";
        cellOne.Width = Unit.Pixel(150);
        rowOne.Controls.Add(cellOne);

        TableCell CellTwo = new TableCell();
        CellTwo.CssClass = "cell";
        CellTwo.Width = Unit.Pixel(100);
        rowOne.Controls.Add(CellTwo);

        TableCell CellThree = new TableCell();
        CellThree.CssClass = "cell";
        CellThree.HorizontalAlign = HorizontalAlign.Left;
        CellThree.Width = Unit.Pixel(240);
        rowOne.Controls.Add(CellThree);

        TableCell CellFour = new TableCell();
        CellFour.CssClass = "cell";
        refundButton.Text = caption.ToString();
        CellFour.Controls.Add(refundButton);
        rowOne.Controls.Add(CellFour);

        refundTable.Controls.Add(rowOne);
    }
     */
    public void addRowToRefundSection(string transaction, string merchant)
    {
        TableRow rowOne = new TableRow();
        TableCell cellOne = new TableCell();
        cellOne.HorizontalAlign = HorizontalAlign.Right;
        cellOne.CssClass = "cell";
        cellOne.Width = Unit.Pixel(150);
        //cellOne.Text = transaction.ToString();
        RadioButton rbutton = new RadioButton();
        rbutton.Text = transaction.ToString();
        rbutton.GroupName = "RefundSection";
        rbutton.ID = transaction.ToString();
        cellOne.Controls.Add(rbutton);
        rowOne.Controls.Add(cellOne);
        TableCell CellTwo = new TableCell();
        CellTwo.CssClass = "cell";
        CellTwo.Width = Unit.Pixel(100);
        rowOne.Controls.Add(CellTwo);

        TableCell CellThree = new TableCell();
        CellThree.CssClass = "cell";
        CellThree.HorizontalAlign = HorizontalAlign.Left;
        CellThree.Width = Unit.Pixel(240);
        CellThree.Text = merchant.ToString();
        rowOne.Controls.Add(CellThree);

        TableCell CellFour = new TableCell();
        CellFour.CssClass = "cell";
        rowOne.Controls.Add(CellFour);

        refundTable.Controls.Add(rowOne);
    }
    public void drawRefundSection(bool onlyRow)
    {
        try
        {
            if (onlyRow == false)
            {
                TableRow headingRow = new TableRow();
                TableCell headingCellOne = new TableCell();
                headingCellOne.HorizontalAlign = HorizontalAlign.Right;
                headingCellOne.CssClass = "cell";
                headingCellOne.Width = Unit.Pixel(200);
                headingCellOne.Font.Bold = true;
                headingCellOne.Text = "Transaction ID";
                headingRow.Controls.Add(headingCellOne);
                TableCell headingCellTwo = new TableCell();
                headingCellTwo.CssClass = "cell";
                headingCellTwo.Width = Unit.Pixel(100);
                headingRow.Controls.Add(headingCellTwo);
                TableCell headingCellThree = new TableCell();
                headingCellThree.CssClass = "cell";
                headingCellThree.HorizontalAlign = HorizontalAlign.Left;
                headingCellThree.Width = Unit.Pixel(240);
                headingCellThree.Font.Bold = true;
                headingCellThree.Text = "Merchant Transaction ID";
                headingRow.Controls.Add(headingCellThree);
                TableCell headingCellFour = new TableCell();
                headingCellFour.CssClass = "warning";
                LiteralControl warningMessage = new LiteralControl("<b>WARNING:</b><br/>You must use Get Transaction Status to get the Transaction ID before you can refund it.");
                headingCellFour.Controls.Add(warningMessage);
                headingRow.Controls.Add(headingCellFour);
                refundTable.Controls.Add(headingRow);
            }
            resetRefundList();
            getRefundListFromFile();

            int tempCountToDisplay = 1;
            while ((tempCountToDisplay <= refundCountToDisplay) && (tempCountToDisplay <= refundList.Count) && (refundList.Count > 0))
            {
                addRowToRefundSection(refundList[tempCountToDisplay - 1].Key, refundList[tempCountToDisplay - 1].Value);
                tempCountToDisplay++;
            }
            //addButtonToRefundSection("Refund Transaction");
        }
        catch (Exception ex)
        {
            drawPanelForFailure(newTransactionPanel, ex.ToString());
        }
    }


    public void updateRefundListToFile()
    {
        if (refundList.Count != 0)
            refundList.Reverse(0, refundList.Count);
        using (StreamWriter sr = File.CreateText(Request.MapPath(refundFile)))
        {
            int tempCount = 0;
            while (tempCount < refundList.Count)
            {
                string lineToWrite = refundList[tempCount].Key + ":-:" + refundList[tempCount].Value;
                sr.WriteLine(lineToWrite);
                tempCount++;
            }
            sr.Close();
        }
    }

    public void resetRefundList()
    {
        refundList.RemoveRange(0, refundList.Count);
    }

    public bool checkItemInRefundFile(string transactionid, string merchantTransactionId)
    {
        string line;
        string lineToFind = transactionid + ":-:" + merchantTransactionId;
        System.IO.StreamReader file = new System.IO.StreamReader(Request.MapPath(refundFile));
        while ((line = file.ReadLine()) != null)
        {
            if (line.CompareTo(lineToFind) == 0)
            {
                file.Close();
                return true;
            }
        }
        file.Close();
        return false;
    }

    public void writeRefundToFile(string transactionid, string merchantTransactionId)
    {
        /* Read the refund file for the list of transactions and store locally */
        //FileStream file = new FileStream(Request.MapPath(refundFile), FileMode.Append, FileAccess.Write);
        //StreamWriter sr = new StreamWriter(file);
        //DateTime junkTime = DateTime.UtcNow;
        //string junkTimeString = String.Format("{0:dddMMMddyyyyHHmmss}", junkTime);
        using (StreamWriter appendContent = File.AppendText(Request.MapPath(refundFile)))
        {
            string line = transactionid + ":-:" + merchantTransactionId;
            appendContent.WriteLine(line);
            appendContent.Flush();
            appendContent.Close();
            //file.Close();
        }
    }

    public void getRefundListFromFile()
    {
        /* Read the refund file for the list of transactions and store locally */
        FileStream file = new FileStream(Request.MapPath(refundFile), FileMode.Open, FileAccess.Read);
        StreamReader sr = new StreamReader(file);
        string line;

        while (((line = sr.ReadLine()) != null))
        {
            string[] refundKeys = Regex.Split(line, ":-:");
            if (refundKeys[0] != null && refundKeys[1] != null)
            {
                refundList.Add(new KeyValuePair<string, string>(refundKeys[0], refundKeys[1]));
            }
        }
        sr.Close();
        file.Close();
        refundList.Reverse(0, refundList.Count);
    }

    void clearRefundTable()
    {
        foreach (Control refundTableRow in refundTable.Controls)
        {
            refundTable.Controls.Remove(refundTableRow);
        }
    }
    /*
    void processRefundButtonClick()
    {
        if (refundList.Count > 0)
        {
            foreach (Control refundTableRow in refundTable.Controls)
            {
                if (refundTableRow is TableRow)
                {
                    foreach (Control refundTableRowCell in refundTableRow.Controls)
                    {
                        if (refundTableRowCell is TableCell)
                        {
                            foreach (Control refundTableCellControl in refundTableRowCell.Controls)
                            {
                                if ((refundTableCellControl is RadioButton))
                                {

                                    if (((RadioButton)refundTableCellControl).Checked)
                                    {
                                        string transactionToRefund = ((RadioButton)refundTableCellControl).Text.ToString();
                                        refundList.RemoveAll(x => x.Key.Equals(Session[transactionToRefund].ToString()));
                                        break;
                                    }
                                }
                            }
                        }
                    }
                }
            }
            updateRefundListToFile();
            resetRefundList();
            refundTable.Controls.Clear();
            drawRefundSection(false);
        }
    }

    protected void refundButtonClick(object sender, EventArgs e)
    {
        if (refundList.Count > 0)
        {
            foreach (Control refundTableRow in refundTable.Controls)
            {
                if (refundTableRow is TableRow)
                {
                    foreach (Control refundTableRowCell in refundTableRow.Controls)
                    {
                        if (refundTableRowCell is TableCell)
                        {
                            foreach (Control refundTableCellControl in refundTableRowCell.Controls)
                            {
                                if ((refundTableCellControl is RadioButton))
                                {

                                    if (((RadioButton)refundTableCellControl).Checked)
                                    {
                                        string transactionToRefund = ((RadioButton)refundTableCellControl).Text.ToString();
                                        refundList.RemoveAll(x => x.Key.Equals(transactionToRefund));
                                        break;
                                    }
                                }
                            }
                        }
                    }
                }
            }
            updateRefundListToFile();
            resetRefundList();
            refundTable.Controls.Clear();
            drawRefundSection(false);
        }
    }
     */
    /* This function is used to read access token file and validate the access token
     * this function returns true if access token is valid, or else false is returned
     */
    public bool readAndGetAccessToken(Panel panelParam)
    {
        bool result = true;
        if (readAccessTokenFile() == false)
        {
            result = getAccessToken(1, panelParam);
        }
        else
        {
            string tokenValidity = isTokenValid();
            if (tokenValidity.CompareTo("REFRESH_ACCESS_TOKEN") == 0)
            {
                result = getAccessToken(2, panelParam);
            }
            else if (string.Compare(isTokenValid(), "INVALID_ACCESS_TOKEN") == 0)
            {
                result = getAccessToken(1, panelParam);
            }
        }
        return result;
    }
    public class AccessTokenResponse
    {
        public string access_token;
        public string refresh_token;
        public string expires_in;
    }
    public class RefundResponse
    {
        public string TransactionId { get; set; }
        public string TransactionStatus { get; set; }
        public string IsSuccess { get; set; }
        public string Version { get; set; }
    }
    public class transactionResponse
    {
        public string Channel { get; set; }
        public string Description { get; set; }
        public string Currency { get; set; }
        public string TransactionType { get; set; }
        public string TransactionStatus { get; set; }
        public string ConsumerId { get; set; }
        public string MerchantTransactionId { get; set; }
        public string MerchantApplicationId { get; set; }
        public string TransactionId { get; set; }
        public string ContentCategory { get; set; }
        public string MerchantProductId { get; set; }
        public string MerchantIdentifier { get; set; }
        public string Amount { get; set; }
        public string Version { get; set; }
        public string IsSuccess { get; set; }
    }
    protected void Unnamed1_Click1(object sender, EventArgs e)
    {
        string transactionToRefund = "";
        bool recordFound = false;
        string strReq = "{\"RefundReasonCode\":1,\"RefundReasonText\":\"Customer was not happy\"}";
        string dataLength = "";
        try
        {
            if (refundList.Count > 0)
            {
                foreach (Control refundTableRow in refundTable.Controls)
                {
                    if (refundTableRow is TableRow)
                    {
                        foreach (Control refundTableRowCell in refundTableRow.Controls)
                        {
                            if (refundTableRowCell is TableCell)
                            {
                                foreach (Control refundTableCellControl in refundTableRowCell.Controls)
                                {
                                    if ((refundTableCellControl is RadioButton))
                                    {

                                        if (((RadioButton)refundTableCellControl).Checked)
                                        {
                                            transactionToRefund = ((RadioButton)refundTableCellControl).Text.ToString();
                                            //refundList.RemoveAll(x => x.Key.Equals(transactionToRefund));
                                            recordFound = true;
                                            break;
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
                if (recordFound == true)
                {
                    if (readAndGetAccessToken(refundPanel) == true)
                    {
                        if (access_token == null || access_token.Length <= 0)
                        {
                            return;
                        }
                        //String getTransactionStatusResponseData;
                        WebRequest objRequest = (WebRequest)System.Net.WebRequest.Create("" + FQDN + "/Commerce/Payment/Rest/2/Transactions/" + transactionToRefund.ToString() + "?access_token=" + access_token.ToString() + "&Action=refund");
                        objRequest.Method = "PUT";
                        objRequest.ContentType = "application/json";
                        UTF8Encoding encoding = new UTF8Encoding();
                        byte[] postBytes = encoding.GetBytes(strReq);
                        objRequest.ContentLength = postBytes.Length;
                        Stream postStream = objRequest.GetRequestStream();
                        postStream.Write(postBytes, 0, postBytes.Length);
                        dataLength = postBytes.Length.ToString();
                        postStream.Close();
                        WebResponse refundTransactionResponeObject = (WebResponse)objRequest.GetResponse();
                        using (StreamReader refundResponseStream = new StreamReader(refundTransactionResponeObject.GetResponseStream()))
                        {
                            String refundTransactionResponseData = refundResponseStream.ReadToEnd();
                            //drawPanelForFailure(refundPanel, refundTransactionResponseData);
                            //{ "TransactionId":"6216898841002136", "TransactionStatus":"SUCCESSFUL", "IsSuccess":true, "Version":"1" }
                            JavaScriptSerializer deserializeJsonObject = new JavaScriptSerializer();
                            RefundResponse deserializedJsonObj = (RefundResponse)deserializeJsonObject.Deserialize(refundTransactionResponseData, typeof(RefundResponse));
                            lbRefundTranID.Text = deserializedJsonObj.TransactionId.ToString();
                            lbRefundTranStatus.Text = deserializedJsonObj.TransactionStatus.ToString();
                            lbRefundIsSuccess.Text = deserializedJsonObj.IsSuccess.ToString();
                            lbRefundVersion.Text = deserializedJsonObj.Version.ToString();
                            //lbRefundTranID.Text = transactionToRefund.ToString();
                           // lbRefundTranStatus.Text = "SUCCESSFUL";
                            //lbRefundIsSuccess.Text = "true";
                           // lbRefundVersion.Text = "1";
                            refundSuccessTable.Visible = true;
                            refundResponseStream.Close();
                            if (LatestFive == false)
                            {
                                refundList.RemoveAll(x => x.Key.Equals(transactionToRefund));
                                updateRefundListToFile();
                                resetRefundList();
                                refundTable.Controls.Clear();
                                drawRefundSection(false);
                                GetTransactionMerchantTransID.Text = "Merchant Transaction ID: ";
                                GetTransactionAuthCode.Text = "Auth Code: ";
                                GetTransactionTransID.Text = "Transaction ID: ";
                            }
                        }
                    }

                }
            }
        }
        catch (Exception ex)
        {
            // + strReq + transactionToRefund.ToString() + dataLength
            drawPanelForFailure(refundPanel, ex.ToString());
        }
    }
}

/*
use Request.InputStream:
byte[] buffer = new byte[1024];
int c;
while ((c = Request.InputStream.Read(buffer, 0, buffer.Length)) 0)
{
    drawPanelForFailure(refundPanel,buffer.tostring());
}

*/

refundFile.txt



Web.config

<?xml version="1.0"?>

<configuration>
  <system.web>
    <compilation debug="true" targetFramework="4.0"/>
    <httpRuntime maxQueryStringLength = "12288" maxRequestLength="12288"/>
    <customErrors mode="Off"></customErrors>
  </system.web>
  <appSettings>
    <!-- This is mandatory key and value should be equal
         to  PAYMENT Service registered application 'API key'
         example: value="e5d8603c08f95da71b2a0db162491e"
     -->
    <add key="api_key" value=""/>
    
    <!-- This is mandatory key and value should be equal
         to  PAYMENT Service registered application 'Secret key'
         example: value="673ed52e20df8b65"
         -->
    <add key="secret_key" value=""/>

    <!-- This is mandatory key and value should be equal
         to  https://api.att.com for production environment or 
         https://api-uat.san1.attcompute.com for uat environment
         example: value="https://api-uat.san1.attcompute.com"-->
    <add key="FQDN" value=""></add>

    <!-- This is optional key and value should be equal
         to  "PAYMENT"
         example: value="PAYMENT"-->
    <add key="scope" value=""/>

    <!-- This is mandatory key and has to be one of the value 1,3,4,5
         example: value="3"-->
    <add key="Category" value=""/>
    <!--2 is not a valid value -->

    <!-- This is optional key and if you want to define, define only as MOBILE_WEB
         example: value="MOBILE_WEB"-->
    <add key ="Channel" value=""/>

    <!-- This is optional key, which points to the file path, and application uses this key's value to create/update 
         the file with access token information, so, make sure to give write access to the folder defined.
         If the key is not defined, PayApp1AccessToken.txt will be created at root folder, so, make sure to give
         write access to the root folder
         example: value="~\\csharpapps\\payment\\app1\\PayApp1AccessToken.txt"
         -->
    <add key="AccessTokenFilePath" value =""/>

    <!-- This is mandatory parameter and this will be your application url
         example: value="http://IIS_Server/csharpapps/payment/app1/Default.aspx"    
-->
    <add key ="MerchantPaymentRedirectUrl" value =""/>
    <!-- This is optional key and if you want to define, define only as false
         example: value="false"-->
    <add key ="IsPurchaseOnNoActiveSubscription" value =""/>
    <!-- always false -->

    <!-- This is optional key and if you want to define, define only as 9999
         example: value="9999"-->
    <add key ="SubscriptionRecurringNumber" value =""/>

    <!-- This is optional key and if you want to define, define only as MONTHLY
         example: value="MONTHLY"-->
    <add key ="SubscriptionRecurringPeriod" value =""/>

    <!-- This is optional key and if you want to define, define only as 1
         example: value="1"-->
    <add key ="SubscriptionRecurringPeriodAmount" value =""/>

    <!-- This is used for notary app
         example: value="http://IIS_Server/csharpapps/notary/app1/Default.aspx" -->
    <add key ="notaryURL" value =""/>

    <!-- This is optional key, which points to the file path, and application uses this key's value to create/update 
         the file with transactions id information, so, make sure to give write access to the folder defined.
         If the key is not defined, refundFile.txt will be created at root folder, so, make sure to give
         write access to the root folder
         example: value="~\\csharpapps\\payment\\app1\\refundFile.txt"
         -->
    <add key="refundFile" value =""/>

    <!-- This is optional key, which will allow to display the defined number of transactions for refund table, default is 5
         example: value="100"-->
    <add key="refundCountToDisplay" value=""/>
    
    <!--  UnComment to delete the record after refund
    <add key="DisableLatestFive" value="anything"/> -->
  </appSettings>
</configuration>