DataStoreExample3.kt

suspend inline fun <T : Any> DataStore<Preferences>.readValue(key: Preferences.Key<T>, defaultValue: T): T {
    return data.catch { recoverOrThrow(it) }.map { it[key] }.firstOrNull() ?: defaultValue
}

suspend inline fun <T : Any> DataStore<Preferences>.readValue(key: Preferences.Key<T>): T? {
    return data.catch { recoverOrThrow(it) }.map { it[key] }.firstOrNull()
}

suspend fun FlowCollector<Preferences>.recoverOrThrow(throwable: Throwable) {
    if (throwable is IOException) {
        emit(emptyPreferences())
    } else {
        throw throwable
    }
}