You are able to integrate your FastSpring payment gateway plugin with WooCommerce install. With FastSpring, you can pay by credit/debit cards in safe way.
FastSpring is most widely used payment gateway to process payments online and accepts Visa, MasterCard, JCB and other variants of cards.
1> Install the plugin as a normal plugin.
2> Click on plugins menu and you see all the installed plugins.
3> Now Activate your plugin.
4> Click on Settings link of your plugin and enter the required details.
5> Now Click on Save Changes button.
6> set HTTP Callback url(Notifications) in FastSpring for order update after making the payment and enter the url like