During the Application's `onCreate()` execution, we make one call to the `UseCases` container, and that triggers the creation of *all* the dependencies of that class. The creation of the `UseCases` container, then further triggers the creation of `AppStore` - which uses the `PocketUpdatesMiddleware` as one of its middlewares. The creation of this class (and its dependencies) takes significant time, and it's not needed at all during startup as seen in this profile - https://share.firefox.dev/3CSiOh0 (also shown in this photo) Making the dependencies of the `UseCases` container lazy, and making the `PocketUpdatesMiddleware` lazy helps to remove these unnecessary work from app startup
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During the Application's `onCreate()` execution, we make one call to the `UseCases` container, and that triggers the creation of *all* the dependencies of that class. The creation of the `UseCases` container, then further triggers the creation of `AppStore` - which uses the `PocketUpdatesMiddleware` as one of its middlewares. The creation of this class (and its dependencies) takes significant time, and it's not needed at all during startup as seen in this profile - https://share.firefox.dev/3CSiOh0 (also shown in this photo) Making the dependencies of the `UseCases` container lazy, and making the `PocketStoriesService` (in `PocketUpdatesMiddleware`) lazy helps to remove these unnecessary work from app startup