getUncleByBlockHashAndIndex method

Future<EthereumBlock?> getUncleByBlockHashAndIndex(
  1. EthereumData? blockHash,
  2. int? index
)

Get uncle by block hash and index. Returns information about an uncle by block hash and uncle index position. Note: An uncle doesn't contain individual transactions. Hash of a block and integer of the uncle index position. Returns see getBlockByHash.

Implementation

Future<EthereumBlock?> getUncleByBlockHashAndIndex(
    EthereumData? blockHash, int? index) async {
  if (blockHash == null) {
    throw ArgumentError.notNull(
        'Ethereum::getUncleByBlockHashAndIndex - blockHash');
  }
  if (index == null) {
    throw ArgumentError.notNull(
        'Ethereum::getUncleByBlockHashAndIndex - index');
  }
  final dynamic params = <String?>[
    blockHash.asString,
    EthereumUtilities.intToHex(index)
  ];
  const method = EthereumRpcMethods.getUncleByBlockHashAndIndex;
  final dynamic res = await _client.rpcClient.request(method, params);
  if (res != null && res.containsKey(EthereumConstants.ethResultKey)) {
    return EthereumBlock.fromMap(res[EthereumConstants.ethResultKey]);
  }
  _client.processError(method, res);
  return null;
}