How to fully dump / print a variable to console in Flutter?

since Dart 3.12 you can use inspect(object) to achieve this

If you expect to have a built-in easy solution, then sorry : You can't.

BUT you can use plugins to serialize your own code, such as built_value. And print the serialized object.

On the other hand, if you want to print external code (DatabaseReference for instance), you'll have to manually transform that object in a combination of Map, List, and int/String/double.