Over there, by the gum and the tabloid magazines, there's an API. Literally, it's a piece of plastic, but behind it is a company and the APIs that company uses to make the whole operation work. Blackhawk, a subsidiary of Safeway, distributes gift cards for many big-name stores in 90,000 retail locations. And while the cards have always been supported by backend systems, mobile is moving this ten year-old company to an open API approach.
PayPal, looking to provide an additional structure around the Node.js application framework, developed the Kraken implementation, a more secure and scalable framework for building commercial-grade applications. This week, PayPal is making Kraken available to the broader open-source community.