public Task <ResultWrapper <UInt256?> > eth_getBalance(Address address, BlockParameter blockParameter = null)
{
SearchResult <BlockHeader> searchResult = _blockFinder.SearchForHeader(blockParameter);
if (searchResult.IsError)
{
return(Task.FromResult(ResultWrapper <UInt256?> .Fail(searchResult)));
}
BlockHeader header = searchResult.Object;
if (!HasStateForBlock(header))
{
return(Task.FromResult(ResultWrapper <UInt256?> .Fail($"No state available for block {header.Hash}", ErrorCodes.ResourceUnavailable)));
}
Account account = _stateReader.GetAccount(header.StateRoot, address);
return(Task.FromResult(ResultWrapper <UInt256?> .Success(account?.Balance ?? UInt256.Zero)));
}