ping method

@override Future<void> ping(String topic)

Implementation

@override
Future<void> ping(String topic) async {
  _isInitialized();
  await _isValidPing(topic);

  if (client.session.keys.contains(topic)) {
    final id = await _sendRequest<Map<String, dynamic>>(
      topic,
      JsonRpcMethod.WC_SESSION_PING,
      {},
      (v) => v,
    );
    final completer = Completer<void>();
    final timer = completer.expirer();
    events.once(
      engineEvent(EngineEvent.SESSION_PING, id),
      (data) {
        timer.cancel();
        if (data is ErrorResponse) {
          completer.completeError(data);
        } else {
          completer.complete();
        }
      },
    );
    await completer.future;
  } else if (client.core.pairing.pairings.keys.contains(topic)) {
    await client.core.pairing.ping(topic: topic);
  }
}