Flutter Firebase Database Class in multiple files

Question

I have a big project and manage a lot of data with firebase. For this I have a class "MyFirestoreDatabase" in which I have every single firebase function, which I then call from my providers.

The problem is, that the MyFirestoreDatabase class has gotten really really big and I would want to split it up into sub classes and different files .

Every time I call a firebase function I use MyFirestoreDatabase.instance.functionName(), so I don't think I want different classes, because then I would have multiple instances of the database open at the same time right?

Would it work to extend the class?

Answer 1

Calling FirebaseFirestore.instance always returns the same (default) instance, no matter how many times you call it. This is the essence of the singleton pattern .

So calling it in each separate class won't make any change in resource consumption, nor in the number of connections to the backend servers.