QuerySnapshot. A QuerySnapshot is returned from a collection query, and allows you to inspect the collection, such as how many documents exist within it, gives access to the documents within the collection, see any changes since the last query and more.
Read moreWhat is FlutterFire?
FlutterFire is a set of Flutter plugins which connect your Flutter application to Firebase .
Read moreWhat is Firebase_core?
The firebase_core plugin is responsible for connecting your Flutter app to your Firebase project . The plugin must be installed and initialized before the usage of any other FlutterFire plugins. It provides basic functionality such as: Initializing FlutterFire. Creating Secondary Firebase App Instances.
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