MainViewModel

MainViewModel.kt

class MainViewModel(private val useCase: UserUseCase) : ViewModel() {

    fun retrieveUserData(userId:String):LiveData<Resource<String>> {
        val userData = MutableLiveData<Resource<String>>()
        useCase.retrieveUserData(userId).observeForever {
            userData.postValue(it)
        }
        return userData
    }
}