Pass Custom Variable to PayPal server via IPN Message and Response

Question

I had successfully integrated Paypal with my iPhone application, but I got stuck over passing the Custom variable via SOAP to Pay pal using IPN Message.

Has anyone pass the Custom Variable to Pay-pal Server????I am making an application for a restaurant,user can make payment using Pay-pal server.

I need to pass the Custom variable (i.e Bucket Id) to Paypal. I get this Bucket Id via web service which I call before making request to pay pal server. Now I need to pass this Bucket Id as Custom Variable to Paypal Server so that it returns the Message Notification.

Note: - I need to make payment using this Bucket Id.

At last when I will get this Notification , I will again call web-service which is going to update the server database of client.

I used this reference: https://cms.paypal.com/cms_content/US/en_US/files/developer/IPNGuide.pdf

Any kind of help is welcomed.....

Please suggest me with some sample code as I had googled alot about this or other reference....

Answer 1

I find out the solution. But for Android, but I think it can be applied to iOS:

PayPalPayment payment = new PayPalPayment();
         payment.setCurrencyType("USD");
         payment.setSubtotal(3.30);
         payment.setRecipient("test_seller11@gmail.com");

         payment.setPaymentType(PayPal.PAYMENT_TYPE_GOODS);
         payment.setCustomID("7982");
        payment.setIpnUrl("some.site.com/PaymentCallback");
        payment.setDescription("Buy 300 coins");

So this is the solution, to pass your extra params to IPN, and to get them back in callback on your server:

payment.setCustomID("7982");