pair method

@override Future<PairingInfo> pair({ required Uri uri, bool activatePairing = false, })

Implementation

@override
Future<PairingInfo> pair({
  required Uri uri,
  bool activatePairing = false,
}) async {
  _checkInitialized();

  // print(uri.queryParameters);
  final int expiry = ReownCoreUtils.calculateExpiry(
    ReownConstants.FIVE_MINUTES,
  );
  final URIParseResult parsedUri = ReownCoreUtils.parseUri(uri);
  if (parsedUri.version != URIVersion.v2) {
    throw Errors.getInternalError(
      Errors.MISSING_OR_INVALID,
      context: 'URI is not WalletConnect version 2 URI',
    );
  }

  final String topic = parsedUri.topic;
  final Relay relay = parsedUri.v2Data!.relay;
  final String symKey = parsedUri.v2Data!.symKey;
  final PairingInfo pairing = PairingInfo(
    topic: topic,
    expiry: expiry,
    relay: relay,
    active: false,
    methods: parsedUri.v2Data!.methods,
  );

  try {
    JsonRpcUtils.validateMethods(
      parsedUri.v2Data!.methods,
      routerMapRequest.values.toList(),
    );
  } on ReownCoreError catch (e) {
    // Tell people that the pairing is invalid
    onPairingInvalid.broadcast(
      PairingInvalidEvent(
        message: e.message,
      ),
    );

    // Delete the pairing: "publish internally with reason"
    // await _deletePairing(
    //   topic,
    //   false,
    // );

    rethrow;
  }

  try {
    await pairings.set(topic, pairing);
    await core.crypto.setSymKey(symKey, overrideTopic: topic);
    await core.relayClient.subscribe(topic: topic);
    await core.expirer.set(topic, expiry);

    onPairingCreate.broadcast(
      PairingEvent(
        topic: topic,
      ),
    );

    if (activatePairing) {
      await activate(topic: topic);
    }
  } catch (e) {
    rethrow;
  }

  return pairing;
}