public async Task <AdmissionControl.SubmitTransactionResponse> SendTransactionAsync(
byte[] privateKey, RawTransaction rawTransaction)
{
var bytesTrx = rawTransaction.ToByteArray();
LibraHasher libraHasher = new LibraHasher(EHashType.RawTransaction);
var hash = libraHasher.GetHash(bytesTrx);
var key = Key.Import(SignatureAlgorithm.Ed25519, privateKey, KeyBlobFormat.RawPrivateKey);
AdmissionControl.SubmitTransactionRequest req =
new AdmissionControl.SubmitTransactionRequest();
req.SignedTxn = new SignedTransaction();
req.SignedTxn.RawTxnBytes = ByteString.CopyFrom(bytesTrx);
req.SignedTxn.SenderPublicKey =
ByteString.CopyFrom(key.Export(KeyBlobFormat.RawPublicKey));
var sig = SignatureAlgorithm.Ed25519.Sign(key, hash);
req.SignedTxn.SenderSignature = ByteString.CopyFrom(sig);
var result = await _client.SubmitTransactionAsync(
req, new Metadata());
return(result);
}
// public async Task<bool> TransferCoins(Account sender, string receiverAddress, ulong amount, ulong gasUnitPrice = 0, ulong maxGasAmount = 1000000)
public async Task <bool> TransferCoins(Account sender, string receiverAddress, ulong amount, ulong gasUnitPrice = 0, ulong maxGasAmount = 1000000)
{
try
{
var program = new Program();
program.Code = Convert.FromBase64String(Constant.ProgamBase64Codes.PeerToPeerTxn).ToByteString();
program.Arguments.Add(new TransactionArgument {
Type = TransactionArgument.Types.ArgType.Address, Data = receiverAddress.ToByteString()
});
program.Arguments.Add(new TransactionArgument {
Type = TransactionArgument.Types.ArgType.U64, Data = amount.ToBytes().Reverse().ToByteString()
});
var transaction = new RawTransaction();
transaction.ExpirationTime = (ulong)Math.Floor((decimal)DateTimeOffset.Now.ToUnixTimeMilliseconds() / 1000) + 100;
transaction.GasUnitPrice = gasUnitPrice;
transaction.MaxGasAmount = maxGasAmount;
var accountState = await QueryBalance(sender.Address);
transaction.SequenceNumber = accountState.SequenceNumber;
transaction.Program = program;
transaction.SenderAccount = sender.Address.ToByteString();
var hash = new SHA3_256().ComputeVariable(Constant.HashSaltValues.RawTransactionHashSalt.FromHexToBytes().Concat(transaction.ToByteArray()).ToArray());
var senderSignature = sender.KeyPair.Sign(hash);
var request = new SubmitTransactionRequest
{
SignedTxn = new SignedTransaction
{
RawTxnBytes = transaction.ToByteString(),
SenderPublicKey = sender.PublicKey,
SenderSignature = senderSignature.ToByteString()
}
};
var response = await acClient.SubmitTransactionAsync(request);
return(response.AcStatus.Code == AdmissionControlStatusCode.Accepted);
}
catch (Exception ex)
{
throw ex;
}
}
