A sample project to demonstrate an android app that can consume data from multiple sources using RxJava.
The basic project has 4 modules
- app (this is the android application)
- persistence (this is an android module that typically would have a content provider or even local data caching)
- api (this is a java module for communication with an API)
- core (this is a java module containing core domain classes)
Each module provides a specific set of functionality and exposes a Dagger module for access to their services.
At the application level we combine these modules and services and create a single service layer for the application to communicate with.
In this example the UserService that we use in our application is composed of both a UserApiService and a UserPersistenceService. The UserService is responsible for composing and serving the data based on the DataRequest.
A DataRequest at the basic level allows the user to specify their source (local(persistence), remote(api), or refresh(persistence and api)) and an ID to get a specific resource. This can be later extended for more querying and filtering as needed.