Medium article - KMM

iosAppResults.swift

//void example
static func createReservation() -> Future<Void, Error> {
    return Future() { promise in
        manager.createReservation() { data, error in
            if data?.isSuccess == true {
                promise(Result.success(()))
            } else if let error = data?.exception {
                promise(Result.failure(error.toAppError()))
            }
        }
    }
}

//value example
static func fetchReservations() -> Future<[shared.Event], Error> {
    return Future() { promise in
        manager.reservations() { data, _ in
            if let success = data?.data {
                promise(Result.success(success as! [shared.Event]))
            } else if let error = data?.exception {
                promise(Result.failure(error.toAppError()))
            }
        }
    }
}