public async Task <IActionResult> Post([FromBody] OrderViewModel model)
{
try
{
if (ModelState.IsValid)
{
var newOrder = mapper.Map <OrderViewModel, Order>(model);
if (newOrder.OrderDate == DateTime.MinValue)
{
newOrder.OrderDate = DateTime.Now;
}
var currentUser = await userManager.FindByNameAsync(User.Identity.Name);
newOrder.User = currentUser;
if (newOrder.BitcoinPrice == 0)
{
logger.LogError($"BtcPrice is not correctly set modelPrice: {model.BtcPrice} newOrderPrice: {newOrder.BitcoinPrice}");
throw new Exception($"BtcPrice is not correctly set modelPrice: {model.BtcPrice} newOrderPrice: {newOrder.BitcoinPrice}");
}
var subtotal = newOrder.Items.Sum(i => i.Quantity * i.UnitPrice);
newOrder.OrderTotalInUSD = subtotal;
newOrder.OrderTotalInBitcoin = Math.Round(subtotal / newOrder.BitcoinPrice, 8);
RPCCredentialString cred = new RPCCredentialString();
cred.UserPassword = new NetworkCredential(config["NodeCredentials:RPCUser"], config["NodeCredentials:RPCPassword"]);
RPCClient client = new RPCClient(cred, Network.TestNet);
var address = await client.GetNewAddressAsync();
newOrder.BitcoinAddress = address.ToString();
repo.AddOrder(newOrder);
if (repo.SaveAll())
{
logger.LogInformation("New order created");
return(Created($"/api/orders/{newOrder.Id}", mapper.Map <Order, OrderViewModel>(newOrder)));
}
}
else
{
logger.LogInformation("Order creation failed");
return(BadRequest(ModelState));
}
}
catch (Exception ex)
{
logger.LogError($"Failed to save new order: {ex}");
return(BadRequest($"Failed to save new order prvi"));
}
return(BadRequest("Failed to save new order drugi"));
}
public async Task GetAsync(string id) //id is blockId
{
logger.LogInformation("New block has been mined");
RPCCredentialString cred = new RPCCredentialString();
cred.UserPassword = new NetworkCredential(config["NodeCredentials:RPCUser"], config["NodeCredentials:RPCPassword"]);
RPCClient client = new RPCClient(cred, Network.TestNet);
var unspent = client.ListUnspent();
foreach (var order in repo.GetAllOrders())
{
if (order.DisregardOrder || order.OrderTransactionsConfirmed)
{
continue;
}
if (order.OrderDate.AddMinutes(15) < DateTime.Now && order.ReceivedValue < order.OrderTotalInBitcoin) //15 minutes or more has passed since order has been placed and payment did not met the requirements
{
order.DisregardOrder = true;
}
if (!order.OrderTransactionsConfirmed && order.ReceivedValue > 0) // if there are unconfirmed txes
{
bool confirmed = true;
foreach (var unspentOutput in unspent.Where(tx => tx.Address.ToString() == order.BitcoinAddress))
{
if (unspentOutput.Confirmations < 6) // one of transactions of order has less than 6 confirmations
{
confirmed = false; // transactions for this order have not been confirmed
break;
}
}
if (confirmed == true) // all transactions are confirmed and there has been at least some payment
{
order.OrderTransactionsConfirmed = true;
await mailService.SendEmailAsync(
order.User.Email,
"Your Transactions have been confirmed!",
$"Accordion Fair is pleased to inform you that your transactions for order {order.OrderNumber} have been confirmed."
);
repo.SaveAll();
}
}
}
}
public async Task GetAsync(string id) //id is txid
{
RPCCredentialString cred = new RPCCredentialString();
cred.UserPassword = new NetworkCredential(config["NodeCredentials:RPCUser"], config["NodeCredentials:RPCPassword"]);
RPCClient client = new RPCClient(cred, Network.TestNet);
var transaction = await client.GetRawTransactionAsync(uint256.Parse(id), false);
Order order = null;
BitcoinAddress orderAddress = null;
foreach (var output in transaction.Outputs) // looping through tx outputs and searching for address that has an order
{
order = repo.GetOrderByBitcoinAddress(output.ScriptPubKey.GetDestinationAddress(Network.TestNet).ToString());
if (order != null)
{
logger.LogInformation("Found order for received transaction. " + System.DateTime.Now);
orderAddress = output.ScriptPubKey.GetDestinationAddress(Network.TestNet);
break;
}
}
if (order == null)
{
logger.LogInformation($"Could not find order for received transaction. " + System.DateTime.Now);
return;
}
if (order.Transactions != null)
{
foreach (var tx in order.Transactions.ToList())
{
if (tx.TransactionId == id)
{
logger.LogInformation("That transaction hass been added to order already. " + System.DateTime.Now);
return;
}
}
}
else
{
order.Transactions = new List <OrderTransaction>();
}
var subtotal = order.Items.Sum(i => i.Quantity * i.UnitPrice);
var totrecbyadr = await client.GetReceivedByAddressAsync(orderAddress, 0); // 0 confirmations
var totalReceivedFromAddress = (double)totrecbyadr.ToDecimal(MoneyUnit.BTC);
var receivedInThisTransaction = Math.Round(totalReceivedFromAddress - order.ReceivedValue, 8);
order.ReceivedValue = totalReceivedFromAddress;
order.Transactions.Add(
new OrderTransaction
{
TransactionId = id,
Amount = receivedInThisTransaction
});
logger.LogInformation("transaction for order has been added. " + System.DateTime.Now);
if (totalReceivedFromAddress * order.BitcoinPrice == subtotal)
{
order.OrderPaymentValid = true;
}
else if (totalReceivedFromAddress * order.BitcoinPrice > subtotal)
{
order.OrderPaymentValid = true;
order.MoreThanNecessary = true;
}
var receivedAmountToUSD = receivedInThisTransaction * order.BitcoinPrice;
if (receivedAmountToUSD >= subtotal)
{
order.OrderPaymentValid = true;
}
if (receivedAmountToUSD > subtotal)
{
order.MoreThanNecessary = true;
}
if (!repo.SaveAll()) // saveChanges is zero, save all didnt save anything
{
logger.LogError("Nothing has been saved " + System.DateTime.Now);
}
logger.LogInformation($"Transaction with ID: {id} was called for address {orderAddress.ToString()} with {receivedInThisTransaction} btc");
await hub.Clients.Group(order.User.UserName).SendAsync("ReceiveNotification", id, receivedInThisTransaction, totalReceivedFromAddress);
}