User management and conditional access in various forms has become almost ubiquitous in modern apps, and modern users expect the possibility of logging in with an account that they already have or registering and using a new one. Further, they expect that the data that they make available under their accounts will remain secure and in compliance with the applicable privacy legislation.

In this chapter, we will explore how we can add security to our Ionic application, which meets most of these demands. We will start by explaining how routing between views in Ionic works and how we can secure access to individual routes. Finally, we will give some pointers to further reading, including advanced authentication concepts such as OAuth.