Re: Credit Card Validation from a 4GL application

Gary A. Mitchell (mitch@lexmark.com) wrote: : Hello, : I have a 4GL application that I need to do credit card validation with. They : currently use a MAP PC to verify the card and they type the verification # into : the 4GL screen. I talked to my credit card vendor and they recommended : something called a POSPORT (??), anybody have any experience with one of there? : Especially doing it from 4GL or C..... : Thanks, Gary : Mitch@lexmark.com The most practical interface would be a PC or Point of Sale device as they can support the MSR (Magnetic Stripe Reader). These provide the ability to capture the track 1 and track 2 data from the card. This data can then be sent in the Authorizers format as a request. Of course, you could do this without mag stripe data but the authorizers tend to charge a lot more per transaction (especially for draft capture and settlement). If your interface is a character based unix terminal, you will have no option but to use key entered account #'s and an expiration date. It seems like everyone of these authorizers uses a different name from POSPORT to the Visa VAP (Visa Access Point) and the Discover MIG (merchant interface gateway) etc, etc. Good luck, Richard.