Convert JSON into POJO (Object) similar to android in Flutter

Question

I\'m just trying to find a way to convert a json response (from a REST API) into POJO (As used in android) so that I can use the received data into my application as using M

Answer 1

This can be done using built_value. Detailed documentation is available in this link.

You just have to write some boilerplate code and run this command flutter packages pub run build_runner build.

Below is a sample class like POJO.

import 'package:built_value/built_value.dart';
import 'package:built_value/serializer.dart';

part 'auth.g.dart';

abstract class Auth implements Built {
  static Serializer get serializer => _$authSerializer;

  String get currentServerTime;
  int get defaultOrganization;
  String get tokenExpiryTimeInMs;
  bool get rememberMe;
  int get failedLoginAttempts;
  int get userId;
  String get status;
  String get token;

  Auth._();
  factory Auth([updates(AuthBuilder b)]) = _$Auth;
}

Below is the Serializer class:

library serializers;

import 'package:built_value/serializer.dart';
import 'package:built_value/standard_json_plugin.dart';
import 'auth/auth.dart';

part 'serializers.g.dart';

@SerializersFor(const [
  Auth,
])

Serializers serializers = _$serializers;

Serializers standardSerializers =
(serializers.toBuilder()..addPlugin(StandardJsonPlugin())).build();

Below is the code where conversion from JSON to Object takes place.

Auth auth = standardSerializers.deserializeWith(
        Auth.serializer, json.decode(res.body)['user']);

Hope this helps.