Network Bounce Resource

NetworkBounceResource.kt

class UserRepository @Inject constructor(
   private val webservice: Webservice,
   private val userDao: UserDao
) {
   fun getUser(userId: String) =
       object : NetworkBoundResource<User, User>() {
           override suspend fun saveCallResult(item: User) {
               userDao.save(item)
           }

           override fun shouldFetch(data: User?): Boolean {
               return rateLimiter.canFetch(userId) && (data == null || !isFresh(data))
           }

           override suspend fun loadFromDb(): Flow<User> {
               return userDao.load(userId)
           }

           override fun createCall(): Flow<ApiResponse<User>> {
               return webservice.getUser(userId)
           }
       }
}

source https://developer.android.com/jetpack/guide