public async Task <RopstenRequest> GetRopstenERC20Transactions()
{
var url = NethereumConfig.ROPSTEN_ERC20_TRANSACTIONS(NethereumConfig.WALLET_B);
var request = await url.GetAsyncRopstenRequest();
return(request);
}
public async Task <String> SendOfflineERC20Token(string fromWallet, string toWallet, int tokenAmount, int maxNonce = 500)
{
var hexAmount = tokenAmount.DecimalToHexadecimal();
var functionInput = new object[] { toWallet, hexAmount };
var transferFunction = _contract.GetFunction("transfer");
var data = transferFunction.GetData(functionInput);
var txCount = await _web3.Eth.Transactions.GetTransactionCount.SendRequestAsync(NethereumConfig.CONTRACT_ADDRESS);
var trxId = "";
var message = "";
var nonce = txCount.Value;
while (nonce < maxNonce)
{
try
{
var encoded = Web3.OfflineTransactionSigner
.SignTransaction(
NethereumConfig.GetPrivateKey(fromWallet), // SIGN WITH PRIVATE KEY
NethereumConfig.CONTRACT_ADDRESS, // SEND TRX TO CONTRACT
0, // VALUE OF ETH - In this case, we aren't transferring ETH
nonce, // NONCE
new HexBigInteger("400000"), // GAS PRICE
new HexBigInteger("400000"), // GAS LIMIT
data // CONTRACT DATA
);
// SIGN TRANSACTION
var verifyAddress = Web3.OfflineTransactionSigner.GetSenderAddress(encoded);
trxId = await _web3.Eth.Transactions.SendRawTransaction.SendRequestAsync("0x" + encoded);
break;
}
catch (Exception ex)
{
message = ex.Message;
while (ex.InnerException != null)
{
ex = ex.InnerException;
message += "\n" + ex.Message;
}
if (!message.Contains("nonce") && !message.Contains("underpriced"))
{
throw new Exception(message);
}
nonce++;
}
}
return(trxId);
}
