Section intro

In this section we’ll continue to work with the Riverpod package and implementing the authentication flows in the app (sign out, sign in with email & password), as shown in this diagram:

Here’s what we will cover:

• Implement an authentication repository, which will use a reactive in-memory database to store information about the authenticated user (using RxDart)
• Learn to create your own controller classes based on StateNotifier
• Use controllers to manage the widget state and communicate with the repositories in the data layer
• Listening to state changes inside the widgets
• Difference between ref.watch, ref.read and ref.listen using Riverpod
• Catching errors with try/catch vs AsyncValue.guard
• Creating immutable state classes with final properties
• Generation of copyWith, toString, ==, hashCode using the Dart Data Class Generator extension
• Email & password sign in with a custom controller and state class
• Using select() to partially listen to a provider
• How to implement a redirect and refresh listenable with GoRouter & Riverpod

By the end of this section, you’ll be familiar with all the most useful Riverpod APIs.