I'm trying to consume a boolean from Proto DataSto...

# coroutines

[Roshan P Varghese]

I'm trying to consume a boolean from Proto DataStore as an observable StateFlow but couldn't.

#StateFlow

val isLoggedIn: StateFlow<Boolean> = mainRepository.userPreferencesFlow.map { it.isLoggedIn }.stateIn(viewModelScope )

The above code gives me the error: "Suspend function 'stateIn' should be called only from a coroutine or another suspend function"

I could do it with LiveData like below.

#LiveData

val isLoggedInLiveData: LiveData<Boolean> =
    mainRepository.userPreferencesFlow.map { userPreferences ->
        userPreferences.isLoggedIn
    }.asLiveData()

Can anyone suggest an equivalent code for StateFlow?
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Slack Conversation

[John O'Reilly]

looks like you're using following version of stateIn

public suspend fun <T> Flow<T>.stateIn(scope: CoroutineScope): StateFlow<T> {

but want to use following version

public fun <T> Flow<T>.stateIn(
    scope: CoroutineScope,
    started: SharingStarted,
    initialValue: T
): StateFlow<T>

[John O'Reilly]

example from some code here....

val peopleInSpace = peopleInSpaceRepository.fetchPeopleAsFlow()
            .stateIn(viewModelScope, SharingStarted.WhileSubscribed(), emptyList())

[Roshan P Varghese]

Thank you! It worked like charm🤩

[Roshan P Varghese]

The solution with StateFlow is below.

val isLoggedIn: StateFlow<Boolean> = mainRepository.userPreferencesFlow
    .map { it.isLoggedIn }
    .stateIn(viewModelScope, SharingStarted.WhileSubscribed(), false)