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Paytm integration


How to integrate Paytm to asp.net site

 

  1. You will need to create an Checksum on your server. Kindly refer the dll file for the attachment.  Usage of CheckSum API:


    ·         Add provided “paytm.dll” as a “Reference” in your project.



    ·         Import namespace “paytm” in your Class with statement “using paytm”.



    ·         Now Generate CheckSum API as well as Verify CheckSum API are available as follows:

    o   String CheckSum.generateCheckSum(String masterKey, Dictionary<String, String> parameters)



    o   Boolean CheckSum.verifyCheckSum(String masterKey, Dictionary<String, String> parameters, StringcheckSum)



    ·         For Generating CheckSum, use following snippet code:

    String masterKey = “merchantKey” ;

    Dictionary<String, String> parameters = new Dictionary<string, string>();

    parameters.Add("CHANNEL_ID", "WEB");
    parameters.Add("TXN_AMOUNT", "1");

    String checkSum = CheckSum.generateCheckSum(masterKey, parameters);

    ·         For Verifying CheckSum, use following snippet code

    String masterKey = “merchantKey” ;

    Dictionary<String, String> parameters = new Dictionary<string,string>();

    parameters.Add("CHANNEL_ID", "WEB"); parameters.Add("TXN_AMOUNT", "1");

    String checkSum = "CheckSumProvided" ;

    Boolean success = CheckSum.verifyCheckSum(masterKey, parameters, checkSum);


    step-2

    String masterKey = "mn7aZS_yRfUvIDSH";
            string orderid = "D" + DateTime.Now.Ticks.ToString();
            Dictionary<String, String> parameters = new Dictionary<string, string>();
            parameters.Add("MID", "NET4U191715600977433");
            parameters.Add("ORDER_ID", orderid);
            parameters.Add("CUST_ID", "455451");
            parameters.Add("CHANNEL_ID", "WEB");
            parameters.Add("TXN_AMOUNT", "2");
            parameters.Add("INDUSTRY_TYPE_ID", "Retail");
            parameters.Add("WEBSITE", "net4u");


            String checkSum = CheckSum.generateCheckSum(masterKey, parameters);

            StringBuilder ppForm = new StringBuilder();
            {
                ppForm.AppendFormat(@"<form  name='frmPP' id='frmPP'  action='https://pguat.paytm.com/oltp-web/processTransaction' method='post'>
               <input type='hidden' name='MID' value='NET4U191715600977433'>
               <input type='hidden' name='ORDER_ID' value='" + orderid + "'>");
                ppForm.AppendFormat(@"   <input type='hidden' name='CUST_ID' value='455451'>
               <input type='hidden' name='TXN_AMOUNT' value='2'>
               <input type='hidden' name='CHANNEL_ID' value='WEB'>
               <input type='hidden' name='INDUSTRY_TYPE_ID' value='Retail'>
     <input type='hidden' name='WEBSITE' value='net4u'>
               <input type='hidden' name='CHECKSUMHASH' value='" + checkSum + "'>");
                ppForm.AppendFormat(@"  <input type='submit'>
            </form>");

            }

            Response.Write(ppForm.ToString());

           

 

 

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