ExampleModules.kt

val myModule = module {
  // singleton
  single { DataRepository() }
  
  // factory for ExampleUseCase, use get() to resolve the constructor
  factory { ExampleUseCase(get()) }

  // Define a singleton of type HttpClient ("properties_url" is in Koin properties)
  single { HttpClient(getProperty("properties_url")) }
  
  // viewmodel is used for ExampleViewModel
  viewModel { ExampleViewModel(get()) }
  
  // Room database instance (we will create this later)
  single { Room.databaseBuilder(get(), AppDatabase::class.java, "example_database").build() }
  
  single { get<AppDatabase>().exampleDao() }
}