[Feature Request/ Question] Native Support for json_serializable / json_annotation

[MSCL]

It would be great when the package natively works together with the

• https://pub.dev/packages/json_serializable and
• https://pub.dev/packages/json_annotation

packages for model and entity classes. Currently I have to write some boilerplate code to make it work.

Or is this already working and I just missed it?

[davidmorgan]

Let's ask :)

@kevmoo is there something I can do here to integrate with json_serializable? Thanks :)

[kevmoo]

@davidmorgan – I don't know! 🤷 – @MSCL – could you expand?

[MSCL]

@kevmoo @davidmorgan Sorry for the late reply!

So, currently I had to do this to make it work for a BuiltList of type String:

• in my model/ entity class I had to mark the BuiltList-String property with @StringBuiltListConverter():

@StringBuiltListConverter()
final BuiltList<String> property;

• and I had to write the StringBuiltListConverter:

import 'package:built_collection/built_collection.dart';
import 'package:json_annotation/json_annotation.dart';

class StringBuiltListConverter extends BuiltListConverter<String> {
  const StringBuiltListConverter();
}

abstract class BuiltListConverter<T>
    implements JsonConverter<BuiltList<T>, List<dynamic>> {
  const BuiltListConverter();

  @override
  BuiltList<T> fromJson(List<dynamic> json) => BuiltList<T>(json);

  @override
  List<dynamic> toJson(BuiltList<T> instance) => instance.toList();
}

For every BuiltList type (int, double, custom data type) you would have to create a new specific BuiltListConverter class. Not too much boilerplate code in the end. But normally the BuiltList could implement the JsonConverter interface by default and just point to the 'toList()' or sth. . Similar to my solution here maybe?