In this chapter, we covered a lot of topics. We not only transformed our backend, but also both our web and native iOS frontend views that communicate with the backend. By now, you should have a good understanding of how to add User model to a Vapor application to make the app multiuser. You should also have a good background on how to store user information, including passwords, and how the authentication and persistence of session works in the browser after authentication. Lastly, you should know how to add token-based authentication to a Vapor app and how the token-based authentication works and the steps involved in it. In iOS land, we also covered how to conditionally load a Login View and store and make requests to the server using the token. There are still few things we did not cover, which include adding a registration view in the iOS app to register if a user does not have an account already, but you can implement it as an extra credit exercise.
In the next chapter, we will...