In the following tutorial, we're going to build a Login Flow in Flutter using the Bloc library.

• BlocProvider, Flutter widget which provides a bloc to its children.
• BlocBuilder, Flutter widget that handles building the widget in response to new states.
• Using Cubit and Bloc. What's the difference?
• Adding events with context.read.⚡
• Prevent unnecessary rebuilds with Equatable.
• RepositoryProvider, a Flutter widget which provides a repository to its children.
• BlocListener, a Flutter widget which invokes the listener code in response to state changes in the bloc.
• Updating the UI based on a part of a bloc state with context.select.⚡