static TransactionType GetTransactionType(RawTransactionResult tx)
{
var vout_0 = tx.Output[0];
if (tx.Output.Count == 3 &&
vout_0.Index == 0 &&
vout_0.ScriptPubKey.Type == NON_STANDARD &&
string.IsNullOrEmpty(vout_0.ScriptPubKey.Hex))
{
return(TransactionType.PoS_Reward);
}
if (tx.Input[0].Coinbase != null)
{
return(TransactionType.PoW_Reward_Coinbase);
}
return(TransactionType.Money);
}
public async Task <Transaction> GetTransaction(string id)
{
RawTransactionResult tx = await _client.GetRawTransactionAsync(id);
if (tx == null)
{
return(null);
}
TransactionType transactiontype = GetTransactionType(tx);
var transaction = new Transaction
{
OriginalJson = tx.OriginalJson,
TransactionType = transactiontype,
Blockhash = tx.Blockhash,
TransactionId = tx.Txid,
Size = tx.Size,
TransactionsIn = new List <Transaction.TransactionIn>(),
TransactionsOut = new List <Transaction.TransactionOut>(),
Time = tx.GetTime()
};
int index = 0;
foreach (var input in tx.Input)
{
var vIn = new Transaction.TransactionIn
{
Index = index,
Coinbase = input.Coinbase,
Sequence = input.Sequence,
ScriptSigHex = input.ScriptSig?.Hex,
AssetId = null,
// pointer to previous tx/vout:
PrevTxIdPointer = input.Txid,
PrevVOutPointer = (int)input.Vout,
// we'll try to fetch this id possible
PrevVOutFetchedAddress = null,
PrevVOutFetchedValue = 0
};
if (input.Txid != null)
{
// Retrieve the origin address by retrieving the previous transaction and extracting the receive address and value
var previousTx = await _client.GetRawTransactionAsync(input.Txid);
if (previousTx != null)
{
var n = input.Vout;
vIn.PrevVOutFetchedAddress = previousTx.Output[(int)n].ScriptPubKey.Addresses.First();
vIn.PrevVOutFetchedValue = previousTx.Output[(int)n].Value;
}
}
transaction.TransactionsIn.Add(vIn);
}
index = 0;
foreach (var output in tx.Output)
{
var vOut = new Transaction.TransactionOut
{
TransactionId = transaction.TransactionId,
Value = output.Value,
Quantity = output.Index,
AssetId = null,
Index = index++,
};
if (output.ScriptPubKey.Addresses != null) // Satoshi 14.2
{
vOut.Address = output.ScriptPubKey.Addresses.FirstOrDefault();
}
else
{
string hexScript = output.ScriptPubKey.Hex;
if (!string.IsNullOrEmpty(hexScript))
{
byte[] decodedScript = Encoders.Hex.DecodeData(hexScript);
NBitcoin.Script script = new NBitcoin.Script(decodedScript);
var pubKey = NBitcoin.PayToPubkeyTemplate.Instance.ExtractScriptPubKeyParameters(script);
if (pubKey != null)
{
NBitcoin.BitcoinPubKeyAddress address = pubKey.GetAddress(NetworkSpecs.Gravium.Main());
vOut.Address = address.ToString();
}
else
{
vOut.Address = script.ToString();
}
}
else
{
vOut.Address = output.ScriptPubKey.Type;
}
}
transaction.TransactionsOut.Add(vOut);
}
return(transaction);
}