CODEWITHSUNDEEP
jsonflutterserialization
Joons van Stuijvenberg
Joons van Stuijvenberg

Reputation: 11

How to serialize an abstract class in Flutter?

I have an abstract model class that has an abstract function that determines how a widget switches state and I would like to keep it. I am currently trying to implement https://pub.dev/packages/json_serializable but it wants me to switch the field type to a dynamic type instead of my abstract one. You cant @JsonSerializeable abstract classes and when I switch to a dynamic type the print reads as Instance of 'class' even when the concrete implementations have a valid toJson method.

Should I just throw out OOP principle implementation or is there an alternative solution here?

Upvotes: 0

Views: 565

Answers (1)

Joons van Stuijvenberg
Joons van Stuijvenberg

Reputation: 11

    <String, dynamic>{
      'command': instance.command,
      'questions': instance.questions.map((e) {return (e as Question).toJson();}).toList(),
    };

Solved by writing my own serializer for my abstract class

Upvotes: 1

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