DataManager.java

@Singleton
public class DataManager {

    private BaseApiManager mBaseApiManager;

    @Inject
    public DataManager(BaseApiManager baseApiManager) {
        mBaseApiManager = baseApiManager;
    }

    public Single<Weather> getWeatherApi(String loc, int day) {
        return mBaseApiManager.getWeatherApi().geWeather(loc, day);
    }

}