fetchStandardData method

Future<ChainData> fetchStandardData({ String? accountAddress, })

Fetch all standard chain data in parallel

This method fetches commonly needed chain data in a single batch for efficiency. Returns null for any values that shouldn't be fetched (based on skipFlags).

Implementation

Future<ChainData> fetchStandardData({final String? accountAddress}) async {
  final futures = <Future<dynamic>>[
    _chainApi.getBlockHash(blockNumber: 0),
    fetchLatestHeader(),
    _stateApi.getRuntimeVersion(),
    accountAddress != null ? _systemApi.accountNextIndex(accountAddress) : Future.value(null),
  ];

  try {
    final results = await Future.wait(futures);

    final genesisHash = results[0] as Uint8List;
    final header = results[1] as BlockHeader;
    final runtime = results[2] as RuntimeVersion;
    final nonce = results[3] as int?;

    return ChainData(
      genesisHash: genesisHash,
      blockHash: header.hash,
      blockNumber: header.number,
      specVersion: runtime.specVersion,
      transactionVersion: runtime.transactionVersion,
      nonce: nonce,
    );
  } catch (e) {
    throw FetchError('Failed to fetch chain data: $e');
  }
}