Security Extensions

// First, send the message
TextMessage textMessage = TextMessage(
  text: 'This message will disappear!',
  receiverUid: 'cometchat-uid-1',
  receiverType: CometChatReceiverType.user,
);

CometChat.sendMessage(textMessage,
  onSuccess: (BaseMessage message) {
    // Now schedule it for deletion
    Map<String, dynamic> body = {
      'msgId': message.id,
      'timeInMS': DateTime.now().millisecondsSinceEpoch + 60000, // 1 minute from now
    };

    CometChat.callExtension('disappearing-messages', 'DELETE', '/v1/disappear', body,
      onSuccess: (Map<String, dynamic> response) {
        debugPrint('Message scheduled for deletion');
      },
      onError: (CometChatException e) {
        debugPrint('Error scheduling deletion: ${e.message}');
      }
    );
  },
  onError: (CometChatException e) {
    debugPrint('Error sending message: ${e.message}');
  }
);