In this chapter, we’re going look at web application (or web app, for short) frameworks—libraries of code that provide a easily reusable structure and design patterns for developing web applications. If you want to develop something useful for the Web, you’ll probably find a web application framework very useful, and Ruby has a wonderful selection of them, of which we’ll look at two: Rails and Sinatra.
Background
Ruby’s most famous web application framework is the Ruby on Rails framework, and the majority of this chapter will be dedicated to it. We’ll walk through developing a (very) ...