serdes_json

serdes_json - is a simple and clean json serializer and deserializer. To create serializable model just describe your model, add Scheme suffix to the end of class name, and annotate with @SerdesJson. That's it!

NOTE

This package is used only as a data holder and validation unit. You can't add additional methods to a model, at least for now. If you need a more flexible library, you can use json_serializable.

Install

To use serdes_json you need install serdes_json and serdes_json_generator:

dependencies:
  serdes_json: <version>
dev_dependencies:
  serdes_json_generator: <version>

Generate models

flutter packages pub run build_runner build

Examples

Model with all required fields

import 'package:serdes_json/serdes_json.dart';

part 'schemes.g.dart';

@SerdesJson()
class NewsListScheme {
  late List<NewsItemScheme> news;
}
@SerdesJson()
class NewsItemScheme {
  late int id;
  late String title;
  late String description;
  late int commentsCount;
}

Snake case models

To convert all names to snake case, add convertToSnakeCase: true to the annotation:

@SerdesJson(convertToSnakeCase: true)
class NewsItemScheme {
  late int id;
  late String title;
  late String description;
  late int commentsCount;
}

Rename field

You can manually specify names for field:

@SerdesJson()
class PayloadScheme {
  late int id;
  late String title;
  late String description;
  @SerdesJsonField(name: 'comments_count')
  late int commentsCount;
}

Use custom suffix

@SerdesJson(endsWith: 'Response')
class NewsItemResponse {
  late int id;
  late String title;
  late String description;
  late int commentsCount;
}

Optional

By default all fields are required, and if there will not be a field, then parser will throw the SchemeConsistencyException. To describe optional fields:

@SerdesJson()
class PayloadScheme {
  late Map<String, dynamic>? result;
  late ErrorScheme? error;
}

Enums

WIP

Custom validations

WIP

To json

final news = NewsItem(
  id: 1,
  title: 'Some new',
  description: 'Description',
  commentsCount: 12,
);

final json = news.toJson();
final stringJson = news.toStringJson();

From json

final json = _client.getJsonBody(response);
final jsonString = _client.getStringJsonBody(response);

final news = NewsItem.fromJson(json);
final news = NewsItem.fromStringJson(jsonString);

Libraries

serdes_json