[Migrating from Dagger2 to Koin ]#Android #Kotlin #Koin

dagger2toKoin.md

Migrating from Dagger2 to Koin

Installing Koin

I started adding the Koin dependency like below :

dependencies {
  // KOIN
  implementation "org.koin:koin-android:1.0.2"
}

That’s it. Pretty light compared to Dagger2. Because Koin doesn’t use the annotation processing, you don’t have to use the kapt compiler plugin and worry about it.

1. Creating Module

For the NoBullshit Android application, I only had a single & simple Dagger2 module providing Firestore datasource :

@Module
class DataModule {
    @Provides
    fun provideFirestore(): FirebaseFirestore = FirebaseFirestore.getInstance()

    @Singleton
    @Provides
    fun provideJobDao(firestore: FirebaseFirestore): JobDao = JobDao(firestore)
}