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[net4u]

What are the best steps for developing a custom gateway plugin? In my case I am interested to make a gateway for PAYU (Romania), but I consider also others.

 

Thank you

[Marcus Gesing]

PayU is a payment gateway, so I would take a look at the PayPal Standard plugin. You need a PayUPaymentProcessor class that is derived from PaymentMethodBase

and a controller derived from PaymentControllerBase. That will connect your plugin with the SmartStore.NET payment infrastructure.

 

There are two types of payment gateways. a) User is redirected to a payment processing page of the gateway when he clicks the buy-button. Example: PayPal Standard.

b) There is no redirection, everything is done internally so that the user always stays on the pages of your shop. Example: PayPal Direct.

 

The type of the gateway you want to implement determines the overrides of PaymentMethodBase you have to implement.

 

For a) the main processing happens in PostProcessPayment of your payment processor. Typically creating a request URL and redirecting to the gateway. Gateway feedback

is coming in and processed through an action method of your plugin controller.

 

For b) the main processing happens in ProcessPayment of your payment processor. Capture override serves a button that enables the merchant to capture a payment in the backend.

Void override serves a button that enables the merchant to void a payment in the backend and so on.