lift-app/lib/internal/account/model/user_entity.dart

class UserEntity {

  String userId;
  String mobile;
  String name;
  String token;
  String avatarUrl;
  MaintenanceCompany maintenanceCompany;
  Role role;

  UserEntity({this.userId="",this.mobile="",this.name="",this.token="",this.avatarUrl="",});

  UserEntity.fromJsonMap(Map<String, dynamic> map):
        userId = map["userId"],
        mobile = map["mobile"],
        name = map["name"],
        token = map["token"],
        avatarUrl = map["avatarUrl"],
        maintenanceCompany = MaintenanceCompany.fromJsonMap(map["maintenanceCompany"]??{}),
        role = Role.fromJsonMap(map["role"]??{});

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['userId'] = userId;
    data['mobile'] = mobile;
    data['name'] = name;
    data['token'] = token;
    data['maintenanceCompany'] = maintenanceCompany == null ? null : maintenanceCompany.toJson();
    data['role'] = role == null ? null : role.toJson();
    return data;
  }
}

class MaintenanceCompany {

  String id;
  String name;
  String address;

  MaintenanceCompany.fromJsonMap(Map<String, dynamic> map):
        id = map["id"],
        name = map["name"],
        address = map["address"];

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['id'] = id;
    data['name'] = name;
    data['address'] = address;
    return data;
  }
}

class Role {

  String id;
  String name;
  String code;
  String description;

  Role.fromJsonMap(Map<String, dynamic> map):
        id = map["id"],
        name = map["name"],
        code = map["code"],
        description = map["description"];

  Map<String, dynamic> toJson() {
    final Map<String, dynamic> data = new Map<String, dynamic>();
    data['id'] = id;
    data['name'] = name;
    data['code'] = code;
    data['description'] = description;
    return data;
  }
}