Service Locator

To manage dependencies this project uses a service locator by a 3rd party library - get_it

Setup

The service locator is initialized in pre_app_config and has 2 configured scopes - Global and User scope.

Global scope

The global scope manages dependencies that are available through the entire lifespan of the app.

Example: the UserManager, API service, platform communication, global data storage, etc.

You'll find the global dependencies at di/service_locator.dart.

User scope

The user scope manages dependencies that are available as long as there is a logged-in user. They are created when the user is logged in and destroyed when is logged out.

Example: TasksRepository - Repository that holds tasks specific to a User that should not be globally available when the user is not logged in.

You'll find the user scope dependencies at di/user_scope.dart.

UserScopeHook

Path: di/user_scope_hook.dart

The user scope hook is a UserEventHook that listens for user lifecycle events and creates and destroys the user scope accordingly.

The user scope component lifecycle:

a. created on:

• app start if there is a logged-in user
• user login

b. destroyed on:

• user logout

c. recreated on:

• new user login after session expiry

d. kept intact on:

• same user login after session expiry

Usage

To use the service locator access the global variable serviceLocator.get<UserManager>().

For more detailed usage head to the get it documentation.