[Flutter] json_serializable: Selecting JsonConverter's at runtime

I'm looking for a solution on how I could switch what JsonConverter I am using at runtime with the package:json_serializable package. This will allow my app use DateTime objects but then convert these to/from Firestore Timestamp objects only when required (when communicating with Firestore).

I need a solution that would allow me to share the data models in none-flutter/firestore environments and they just work as expected as DateTime objects.

Current solution (built_value)


My app that shares it's data models between flutter apps, Dart-SDK only environments (GCP Cloud Run) and firestore. I currently use package:built_value and I have two sets of serializers (dartSerializers & firestoreSerializers). This allows me to choose which I use, see example below:

FooBar.fromJsonMap(
Serializers serializers, Map<String, dynamic> data) =>
serializers.deserializeWith(ChatMessage.serializer, data)!;

Map<String, dynamic> toJsonMap(Serializers serializers) =>
Map.of(serializers.serialize(this, //....



Thanks

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