Hive StorageService implementation example

storage_service_impl.dart

import 'package:hive/hive.dart';

import '../model/local/db_user.dart';
import '../model/user.dart';
import 'storage_service.dart';

/// Implementation of StorageService using Hive Key-Value DB
class StorageServiceImpl implements StorageService {
  @override
  Future saveUser(User user) async {
    final userToSave = DBUser(
        user.data.id,
        user.data.name);
    final usersBox = await Hive.openBox('user');
    usersBox.put('current_user', userToSave);
  }

  @override
  Future<DBUser> getUser() async {
    final usersBox = await Hive.openBox('user');
    final user = usersBox.get('current_user');
    return user;
  }

  @override
  Future<void> removeDb() async {
    await Hive.close();
    return await Hive.deleteFromDisk();
  }

  @override
  void stop() {
    Hive.close();
  }
}