payment

问题 I'm having some trouble choosing between PayPal's Instant Payment Notification (IPN) and Payment Data Transfer (PDT). Basically, users buy a one-off product on my site, pay on PayPal, and return to my site. I understand how IPN works but I'm now seeing that I might be able to trigger the various actions that take place after a successful purchase more easily with PDT, as the data gets returned there and then (as opposed to needing a separate listener). However, PayPal's PDT documentation

问题 I am working on implementing a new payment module for Magento and want to understand the core concept behind this logic. I know I have to extend from Mage_Payment_Model_Method_Abstract or any of its children classes, but my problem is when to use and how to use capture and authorize methods in my model. For example if I split the whole process in steps like this: User comes to the shopping cart and choses lets say some payment method which is gateway. The system intercepts the request,

问题 I have an android app and want to integrate with CCAvenue payment gateway same as flipkart and others.but i don't know how can i integrate CCAvenue because there is no SDK provided. I have used paypal sdk thats so simple to integrate.but not able to integrate CCAvenue. So please help me for this problem. Thanks. 回答1: Edit: I've not been able to find a good public download link for the Integration Kit, the original links (CCAvenue Link and Xamarin Component Store) are now obsolete. It seems

问题 In testing mode when I create a new customer and tries for payment, i got this error. Customer cus_7Zz2BCnybIZLGw does not have a linked card with ID tok_17Kp8GAwLkQPB7OqrrM73VVI Im using card number : 4242424242424242 exp_month :12 exp_year 2016 The return response is, Array ( [charge_status] => [error_info] => Array ( [type] => invalid_request_error [message] => Customer cus_7Zz2BCnybIZLGw does not have a linked card with ID tok_17Kp8GAwLkQPB7OqrrM73VVI. [param] => card [code] => missing )