Summary

• Based on Clean Architecture and MVVM.
• The application is split into layers
  • View
  • View Model
  • Model
  • Service
• Upper layers depend on lower layers. Not the other way around, e.g. code in the Service layer cannot call code in the Model layer.

Layers

View

• The UI components, screens etc.
• Has minimal logic just for managing the UI, e.g. event handlers, navigation etc.
• No CRUD or application logic - that should be triggered via View Models instead.

View Model

• Defines the application logic that the View layer can trigger.
• Composes CRUD operations from the Model layer.

Model

• Defines the async CRUD operations on a given entity.
• Manages the application state while doing these operations, e.g. setting loading indicators, entity values etc.

Store

• Persists application state to be used across the app.
• Each model has its own store.

Service

• The external systems onto which CRUD operations are done