Offline-First Architecture Patterns

NetworkBoundResource Pattern

The core abstraction that coordinates cache and network data sources.

inline fun <ResultType, RequestType> networkBoundResource(
    crossinline query: () -> Flow<ResultType>,
    crossinline fetch: suspend () -> RequestType,
    crossinline saveFetchResult: suspend (RequestType) -> Unit,
    crossinline shouldFetch: (ResultType) -> Boolean = { true },
    crossinline onFetchFailed: (Throwable) -> Unit = { }
): Flow<Resource<ResultType>> = flow {
    emit(Resource.Loading())

    val cachedData = query().first()