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SequentialNetworkRequestsRxViewModel.kt
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SequentialNetworkRequestsRxViewModel.kt
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package com.lukaslechner.coroutineusecasesonandroid.usecases.coroutines.usecase2.rx
import com.lukaslechner.coroutineusecasesonandroid.base.BaseViewModel
import io.reactivex.android.schedulers.AndroidSchedulers
import io.reactivex.disposables.CompositeDisposable
import io.reactivex.rxkotlin.addTo
import io.reactivex.rxkotlin.subscribeBy
import io.reactivex.schedulers.Schedulers
class SequentialNetworkRequestsRxViewModel(
private val mockApi: RxMockApi = mockApi()
) : BaseViewModel<UiState>() {
private val disposables = CompositeDisposable()
fun perform2SequentialNetworkRequest() {
uiState.value = UiState.Loading
mockApi.getRecentAndroidVersions()
.flatMap { androidVersions ->
val recentVersion = androidVersions.last()
mockApi.getAndroidVersionFeatures(recentVersion.apiLevel)
}
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribeBy(
onSuccess = { featureVersions ->
uiState.value = UiState.Success(featureVersions)
},
onError = {
uiState.value = UiState.Error("Network Request failed.")
}
)
.addTo(disposables)
}
override fun onCleared() {
super.onCleared()
disposables.clear()
}
}