The Visa Point-of-Sale (POS) Solutions Program gives participating payment technology providers access to Visaâ€™s financial transaction network. Through this API, users can code their POS systems to process credit payment transactions for Visa and supported cards such as, Discover and American Express. Visa will also provide a transaction-history document. The API uses XML format. Public documentation is not available and developers must register for access.
The following is a list of sample source code snippets that matched your search term. Source code snippets are chunks of source code that were found out on the Web that you can cut and paste into your own source code. Whereas most of the sample source code we've curated for our directory is for consuming APIs, we occasionally find something interesting on the API provider side of things. If you know of some sample source code that would be of interest to the ProgrammableWeb community, we'd like to know about it. Be sure to check our guidelines for making contributions to ProgrammableWeb.