Building a REST API in Java and Scala Using Play Framework - Part 2

In the first part of this series, we introduced Play framework, a web development framework for Java and Scala developers, and we showed how it enabled one to expose a basic REST API with minimal effort. In this second part, we explore some of the features of Play and use real code to illustrate its capabilities. Play supports both synchronous and asynchronous REST services, and it's particularly powerful when dealing with asynchronous requests. Whatever the request, an Action always returns an instance of play.mvc.Result. This can be directly returned to the consumer in the case of a synchronous service, or it can be served up as a Future.