Ionic 4 Prevent Access to Pages

Ionic 4 is using Angular Routing, so it becomes very easy to add authentication in an Ionic application using Auth Guards.

In this post, we will create a simple login application to quickly demonstrate how we can implement Angular Guards in Ionic 4 to prevent access to pages if the user is not logged in. This is very common and required by most of the real world application where we don’t want some pages to be accessed without proper authentication.