viaKLIX is a payment gateway allowing merchants to submit credit card transactions via the Internet to the NOVA Network. and have them authorized in real-time. This guide is designed to help you, the developer, write a Web site that will interface with viaKLIX to process these transactions. viaKLIX allows for a wide range of customization by utilizing both code and configuration through the administration section of your account at www.viaklix.com, to allow you to process transactions in the manner that best fits your particular business needs.

viaKLIX accepts information sent via HTTPS, either by a Get (along with the Query string in the URL) or Post (typically from an HTML Form) Method. The information you send, along with your viaKLIX settings, will determine how your transactions are handled. This information will determine user interface settings such as colors, images to display, field order and field selection. This information also will determine behavior. For example, if viaKLIX needs to display a form to collect additional customer information, the information you send and your viaKLIX settings will determine the type of receipt to display to the customer, and how information is sent back to you.

The first decision you need to make is how much work you want to do, and how much work you want to let viaKLIX do for you. viaKLIX can accept as little as two pieces of data from your Web site, and do the rest of the work on its own, by gathering information from your customer and using the settings that have been configured by your company in the viaKLIX administration section. On the other hand, you could go as far as using viaKLIX as a backend feature to your Web site, completely transparent to your customers,

In which you write the page that gathers all of the pertinent customer information and the receipt page that displays the outcome of the transaction processing to the user. We find that most merchants fall somewhere in the middle of these scenarios, gathering some data from their customer’s before sending them out to viaKLIX and then letting viaKLIX gather more information from the customer and displaying the receipt after credit card approval.