private async Task GetEstimateGasAsync()
{
_estimateGasLabel = new Label(PositionX, 21, "eth_estimateGas: fetching...");
_window.Add(_estimateGasLabel);
var gasLimit = await Extensions.TryExecuteAsync(() =>
_ethJsonRpcClientProxy.eth_estimateGas(_transaction,
BlockParameterModel.FromNumber(_latestBlock.Number)));
SetEstimateGas(gasLimit);
_window.Remove(_estimateGasLabel);
_estimateGasLabel = new Label(PositionX, 21, $"Gas limit: {_estimateGas}");
_window.Add(_estimateGasLabel);
}
private async Task MakeTransferAsync()
{
if (!CorrectData(_toAddress, _value, _passphrase))
{
Application.Run(_transferWindow);
return;
}
var averageGasPrice = await GetAverageGasPrice();
var transactionCountResult = await _ethJsonRpcClientProxy.eth_getTransactionCount(_address);
if (!transactionCountResult.Result.HasValue)
{
throw new Exception("There was an error when getting transaction count.");
}
_currentNonce = transactionCountResult.Result.Value;
Address from = _address;
Address to = new Address(_toAddress);
UInt256 value = EthToWei(_value);
var transaction = CreateTransaction(from, to, value, _gasLimit, averageGasPrice, _currentNonce);
var resultGasEstimate = await _ethJsonRpcClientProxy.eth_estimateGas(transaction);
var txFee = decimal.Zero;
if (resultGasEstimate.IsValid)
{
_estimateGas = resultGasEstimate.Result.ToHexString();
txFee = decimal.Parse(_estimateGas) * _averageGasPriceNumber;
}
var confirmed = MessageBox.Query(40, 10, "Confirmation",
$"Do you confirm the transaction?" +
$"{Environment.NewLine}" +
$"Gas limit: {_estimateGas}" +
$"{Environment.NewLine}" +
$"Gas price: {_averageGasPriceNumber}" +
$"{Environment.NewLine}" +
$"Transaction fee: {WeiToEth(txFee)}", "Yes", "No");
if (confirmed == 0)
{
DeleteLabels();
var unlockAccountResult = await _jsonRpcWalletClientProxy.personal_unlockAccount(_address, _passphrase);
if (!unlockAccountResult.Result)
{
MessageBox.ErrorQuery(40, 7, "Error", "Unlocking account failed.");
Application.Run(_transferWindow);
}
_unlockedLabel = new Label(1, 11, "Account unlocked.");
_transferWindow.Add(_unlockedLabel);
if (unlockAccountResult.Result)
{
var sendingTransactionLabel = new Label(1, 12, $"Sending transaction with nonce {transaction.Nonce}.");
var sendTransactionResult = await _ethJsonRpcClientProxy.eth_sendTransaction(transaction);
_transferWindow.Add(sendingTransactionLabel);
_transferWindow.Remove(_backButton);
_transferWindow.Remove(_transferButton);
do
{
var newNoneResult = await _ethJsonRpcClientProxy.eth_getTransactionCount(_address);
_newNonce = newNoneResult.Result;
} while (_newNonce == _currentNonce);
_transferWindow.Add(_backButton, _transferButton);
_transferWindow.Remove(sendingTransactionLabel);
var sentLbl = new Label(1, 12, $"Transaction sent with nonce {transaction.Nonce}.");
_transferWindow.Add(sentLbl);
if (sendTransactionResult.IsValid)
{
_txHashLabel = new Label(1, 13, $"Transaction hash: {sendTransactionResult.Result}");
_transferWindow.Add(_txHashLabel);
}
var resultLockingAccount = await _jsonRpcWalletClientProxy.personal_lockAccount(_address);
if (resultLockingAccount.IsValid)
{
_accountLockedLabel = new Label(1, 14, "Account locked.");
_transferWindow.Add(_accountLockedLabel);
}
}
}
}