We reached the end of another chapter; this was a real journey into the heart of development using the Express framework through the implementation of authenticating users with Passport, sessions, and the encryption of passwords.

We also saw how to use the Bower dependency manager and refactor an application generated with the Express generator, making its structure optimized to eventually be able to scale our application without major hassle. However, we still have much to look forward to. In the next chapter, we will begin our frontend development with AngularJS and tools such as Yeoman and Grunt.js.