deleteMessage method

Future<int> deleteMessage(
  1. String sessionId,
  2. String messageId,
  3. String accId
)

Implementation

Future<int> deleteMessage(
  String sessionId,
  String messageId,
  String accId,
) async {
  final key = _key(sessionId, accId);
  final set = _store[key];
  if (set == null) return 0;
  final removed = set.remove(messageId);
  return removed ? 1 : 0;
}