Project modules

Main module descriptions

:app

• Android application module

:feature:x

• Library modules.
• Modules of features that are separated from app module.
  Ex: :features:profile, :feature:registration …
• Presentation layer for the feature
• Dependencies: Android-related: Activity, Fragment, Composable UI, Service…

:data:api

• Library module.
• Contracts of all data modules: Repository, Datasource interfaces, Model classes.
  Ex: activity feed, user profile, user’s recent location…
• Dependencies: only Kotlin, Java code.

:domain

• Library module.
• Business logic: Use cases. Use interfaces in :data:api and doesn't care about concrete implementation.
• Dependencies: Ideally to have only Kotlin, Java code. Minimum on implement details.
  (Thinking of :domain And :data:api like modules that can be shared in a KMM project)

:data:x

• Library modules.
• Implementations of :data:api contract interfaces. They are about how to store data (local/remote), which libraries to use...
• Dependencies: OkHttp, Retrofit, Firebase, Room, DataStore…