sendMessage method

Future<void> sendMessage(
  1. ChatMessage message,
  2. String chatRoomId
)

Implementation

Future<void> sendMessage(ChatMessage message, String chatRoomId) async {
  DocumentReference roomRef =
      _firestore.collection('ChatRooms').doc(chatRoomId);
  DocumentReference messageRef = roomRef.collection('Messages').doc();
  await messageRef.set(message.toJson());
  notifyListeners();
}