toJson property

Function? toJson
final

A Function to use when encoding the annotated field to JSON.

Must be a top-level or static Function or a constructor that accepts one positional argument compatible with the field being serialized that returns a JSON-compatible value.

When creating a class that supports both toJson and fromJson (the default behavior), it is recommended to also set fromJson if toJson is set. Values returned by toJson should "round-trip" through fromJson.

Implementation

final Function? toJson;