🚀 go-pugleaf

nikhil wrote:

> How do I implement CreditCard verification and handle online monetary transations using Borland CPP.

A good approach is to use Indy 9.  You will find the TIdHTTP component, which has get and post methods.
The specific implementation you use depends on which credit card processor you use (gateway service).
The processor you select will provide you an implementation document specifying the format of the
request that you send to their (typically secured) server.  In the request, you provide merchant
account, purchase info, etc.  Then you use the post or get method to transmit the request.  The gateway
provider then sends back a result string which you parse to determine the transaction result.  Some
gateway providers will produce their own payment screen.  You should use the direct response method, if
possible, rather than redirecting to their page.

Generally, the request is simply a text string of parameter=value pairs, separated by the ampersand
character.

keith