My friend Keith Casey is working on a book about practical API design. However, if you have a legacy application, adding (or updating) an API can be troublesome. It would be a lot easier to deal with an API if you could modernize your legacy application first. As Keith says:
If you read the tech press, everyone knows they need an API but most aren’t really sure what it is. They treat it as another checkbox like “Web 2.0″ was a few years ago or a mobile app was most recently. In fact, there’s an entire “API-first” movement in development circles that most people don’t understand or even realize why. ...
Of course, how do you get your application ready for an API?
In response to that scenario, we are happy to announce a Leanpub book bundle: "Modernizing Legacy PHP Apps with APIs." When you buy both books together and you get a discount from their separate prices. The Leanpub 100% happiness guarantee applies: if you don't like your purchase, you can get your money back up to 45 days later.
Do you have a legacy application that you want to modernize? Do you want to add an API, or redesign the existing one? Buy "Modernizing Legacy PHP Applications with APIs" today and get started on making your own life easier!