json_factory_runtime_generator 0.3.2

Build-time JSON factory generator for json_serializable classes. Decodes JSON to the right class from a key in the JSON, with no base class, mixin or toJson changes.

example/README.md

Example

A small project that uses json_factory_runtime_generator.

• lib/models/: User and Address in the default JsonFactoryMixin mixin (Address also accepts its old key 'location'), Order, ApiUser and ApiEvent (key from an enum @JsonValue) in ApiMixin.
• build.yaml: writes the mixins to lib/src/factories/json_factory_runtime.g.dart.
• lib/factories.dart: classes that mix them in. The generated JsonFactoryMapper and ApiMapper classes can be called directly instead.
• test/factory_test.dart: round-trips JSON through the factories.

@JsonSerializable()
class User {
  final String id;
  final String name;

  const User({required this.id, required this.name});

  @jsonFactoryKey()
  final String factoryKey = 'user';

  factory User.fromJson(Map<String, dynamic> json) => _$UserFromJson(json);
  Map<String, dynamic> toJson() => _$UserToJson(this);
}

final json = const User(id: '1', name: 'Ada').toJson();
// {id: 1, name: Ada, __type__: user}

final user = JsonFactoryMapper.fromKeyedJsonAs<User>(json);

Run it:

dart pub get
dart run build_runner build
dart test