initialize static method
Implementation
static Firestore initialize(String projectId, {String? databaseId}) {
if (_instance != null) {
throw Exception('Firestore instance was already initialized');
}
FirebaseAuth? auth;
try {
auth = FirebaseAuth.instance;
} catch (e) {
// FirebaseAuth isn't initialized
}
_instance = Firestore(projectId, databaseId: databaseId, auth: auth);
return _instance!;
}