flutter_google_map/lib/dao/user_dao.dart

import 'package:flutter_google_map/models/user_model.dart';

class UserDao {
  Future<UserModel> login(String username, String pwd) async {
    // Get user from database
    return UserModel.fromJson({
      "name": "liuyuqi",
      "userId": 1,
    });
  }
}