private static Block CreateGenesisBlock()
{
var transactions = new List <Transaction>();
foreach (var account in Ico.Accounts)
{
var transaction = new Transaction("ico", account.Address, account.Balance, 0.0F);
transaction.Hash = TransactionHelpers.GetTransactionHash(transaction);
transactions.Add(transaction);
}
return(new Block(
height: 0,
previousHash: string.Empty,
transactions: transactions.ToArray(),
validator: "Admin"));
}
public override Task <TransactionResponse> SendCoin(SendRequest request, ServerCallContext context)
{
// Create new transaction
var newTrx = new Transaction(
request.TransactionInput.SenderAddress,
request.TransactionOutput.RecipientAddress,
request.TransactionOutput.Amount,
request.TransactionOutput.Fee)
{
Hash = request.TransactionId, TimeStamp = request.TransactionInput.TimeStamp
};
// verify transaction ID
var trxHash = TransactionHelpers.GetTransactionHash(newTrx);
if (!trxHash.Equals(request.TransactionId))
{
return(Task.FromResult(new TransactionResponse
{
Result = "Transaction ID not valid",
}));
}
// Verify signature
var isValid = TransactionHelpers.VerifySignature(request.PublicKey, request.TransactionId, request.TransactionInput.Signature);
if (!isValid)
{
return(Task.FromResult(new TransactionResponse()
{
Result = "Signature not valid",
}));
}
this.blockChain.AddTransaction(newTrx);
return(Task.FromResult(new TransactionResponse()
{
Result = "Success",
}));
}
private void DoSendCoin()
{
Console.Clear();
Console.WriteLine("\n\n\n\nTransfer Coin");
Console.WriteLine("Time: {0}", DateTime.Now);
Console.WriteLine("======================");
Console.WriteLine("Sender address:");
string sender = this.account.Address;
Console.WriteLine(sender);
Console.WriteLine("\nPlease enter the recipient address!:");
string recipient = Console.ReadLine();
Console.WriteLine("\nPlease enter the amount (number)!:");
string strAmount = Console.ReadLine();
Console.WriteLine("\nPlease enter fee (number)!:");
string strFee = Console.ReadLine();
double amount;
if (string.IsNullOrEmpty(sender) ||
string.IsNullOrEmpty(recipient) ||
string.IsNullOrEmpty(strAmount) ||
string.IsNullOrEmpty(strFee))
{
Console.WriteLine("\n\nError, Please input all data: sender, recipient, amount and fee!\n");
return;
}
var success = double.TryParse(strAmount, out amount);
if (!success)
{
Console.WriteLine("\nError! You have inputted the wrong value for the amount!");
return;
}
success = float.TryParse(strFee, out var fee);
if (!success)
{
Console.WriteLine("\nError! You have inputted the wrong value for the fee!");
return;
}
var response = this.service.GetBalance(new AccountRequest
{
Address = sender,
});
var senderBalance = response.Balance;
if ((amount + fee) > senderBalance)
{
Console.WriteLine("\nError! Sender ({0}) don't have enough balance!", sender);
Console.WriteLine("Sender ({0}) balance is {1}", sender, senderBalance);
return;
}
var transactionInput = new TransactionInput()
{
SenderAddress = this.account.Address,
TimeStamp = DateTime.Now.Ticks,
};
var transactionOutput = new TransactionOutput()
{
RecipientAddress = recipient,
Amount = amount,
Fee = fee,
};
var transactionHash = TransactionHelpers.GetTransactionHash(transactionInput, transactionOutput);
var signature = this.account.CreateSignature(transactionHash);
transactionInput.Signature = signature;
var sendRequest = new SendRequest
{
TransactionId = transactionHash,
PublicKey = this.account.PublicKey,
TransactionInput = transactionInput,
TransactionOutput = transactionOutput,
};
try
{
var responseSend = this.service.SendCoin(sendRequest);
if (responseSend.Result.ToLower() == "success")
{
Console.Clear();
Console.WriteLine("\n\n\n\nTransaction has send to Blockchain.!.");
Console.WriteLine("Sender: {0}", sender);
Console.WriteLine("Recipient {0}", recipient);
Console.WriteLine("Amount: {0}", amount);
Console.WriteLine("Fee: {0}", fee);
Console.WriteLine("-------------------");
Console.WriteLine("Need around 30 second to be processed!");
}
else
{
Console.WriteLine("Error: {0}", responseSend.Result);
}
}
catch (Exception e)
{
Console.WriteLine("Error: {0}", e.Message);
}
}