markAsRead method
Marks as read with current time.
After this method completes successfully, channel event ChannelEventHandler.onReadReceiptUpdated can be invoked
Implementation
Future<void> markAsRead() async {
final now = DateTime.now().millisecondsSinceEpoch;
if (now - _lastMarkAsReadTimestamp <= 1000) {
throw MarkAsReadRateLimitExceededError();
}
_lastMarkAsReadTimestamp = now;
final cmd = Command.buildRead(channelUrl);
await _sdk.cmdManager.sendCommand(cmd);
}