fetchMessages method

@override Future<List<ChatBackendMessage>> fetchMessages(String path)

Fetches all existing messages for the conversation at path, ordered oldest first.

Implementation

@override
Future<List<ChatBackendMessage>> fetchMessages(String path) async {
  final snapshot = await _collectionFor(path).orderBy("timestamp").get();
  return snapshot.docs.map((doc) {
    return ChatBackendMessage(
      id: doc.id,
      data: _normalize(doc.data()! as Map<String, dynamic>),
    );
  }).toList();
}