About DocumentReference Type

[mysCod3r]

Hi there,
I have reference type in firestore document and a model class.
I am accessing this data in Flutter application. DocumentSnapshot<Object?>? I get this type of return. What should I do to convert it to a class I wrote instead of an Object? -> like this --> DocumentSnapshot<UserModel?>?

I tried to add cast but it didn't work.

[Ehesp]

You can use the withConverter API for that: https://pub.dev/documentation/cloud_firestore/latest/cloud_firestore/Query/withConverter.html

.collection('persons')
    .where('age', isGreaterThan: 0)
    .withConverter<Person>(
      fromFirestore: (snapshot, _) => Person.fromJson(snapshot.data()!),
      toFirestore: (person, _) => person.toJson(),
    );