public async Task <BlockchainTransactionsInfo> GetTransactionsInfoAsync(IEnumerable <Asset> assets, string address, string assetId = null, DateTime?fromDate = null, int?fromBlock = null)
{
assetId = string.IsNullOrEmpty(assetId) ? "BTC" : assetId;
var result = new BlockchainTransactionsInfo
{
AssetId = assetId
};
if (!fromBlock.HasValue)
{
return(result);
}
var(btcAddress, isColored) = GetAddress(address);
var asset = assets.First(x => x.Id == assetId);
try
{
_client.Colored = isColored;
var balance = await _client.GetBalanceBetween(new BalanceSelector(btcAddress), until : new BlockFeature(fromBlock.Value));
foreach (var operation in balance.Operations)
{
result.ReceivedAmount += operation.ReceivedCoins.Sum(x => x.Amount.GetAmount(asset.MultiplierPower));
result.SpentAmount += operation.SpentCoins.Sum(x => x.Amount.GetAmount(asset.MultiplierPower));
}
result.TransactionsCount = balance.Operations.Count;
return(result);
}
catch (Exception e)
{
throw new RetryNeededException(e);
}
}
public async Task <BlockchainTransactionsInfo> GetTransactionsInfoAsync(IEnumerable <Asset> assets, string address, string assetId = null, DateTime?fromDate = null, int?fromBlock = null)
{
var ethAsset = (await _assetsService.AssetGetAllAsync()).FirstOrDefault(x => x.BlockChainAssetId == "ETH");
if (ethAsset == null)
{
return(new BlockchainTransactionsInfo());
}
var result = new BlockchainTransactionsInfo
{
AssetId = ethAsset.Id
};
if (!fromDate.HasValue)
{
return(result);
}
var hasTransactions = true;
int count = 100;
int start = 0;
while (hasTransactions)
{
var addressHistoryResponse = await _client.ApiTransactionsHistoryPostAsync(new AddressTransactions
{
Address = address,
Count = count,
Start = start
});
if (addressHistoryResponse is ApiException error)
{
continue;
}
if (addressHistoryResponse is FilteredAddressHistoryResponse historyResponse)
{
var transactions = historyResponse.History.Where(x => x.BlockTimeUtc >= fromDate.Value).ToList();
hasTransactions = transactions.Any();
foreach (var historyItem in transactions)
{
var fees = BigInteger.Parse(historyItem.GasPrice ?? "0") * BigInteger.Parse(historyItem.GasUsed ?? "0");
var sign = EthServiceHelpers.CalculateSign(address, historyItem.FromProperty, historyItem.To);
var value = sign == 1
? historyItem.Value
: (BigInteger.Parse(historyItem.Value) + fees).ToString();
decimal ethValue = sign * EthServiceHelpers
.ConvertFromContract(
value,
ethAsset.MultiplierPower,
ethAsset.Accuracy);
result.TransactionsCount++;
if (sign == 1)
{
result.ReceivedAmount += ethValue;
}
if (sign == -1)
{
result.SpentAmount += ethValue;
}
}
start += count;
count += count;
}
}
return(result);
}
