public async Task ProcessPayment(Payment payment, ApplicationDbContext db)
{
try
{
var sw = new Stopwatch();
sw.Start();
if (string.IsNullOrEmpty(payment.MerchantTransactionId))
{
var transaction = new TransactionRequest
{
Address = payment.MerchantWallet,
Amount = GraftConvert.ToAtomicUnits(payment.MerchantAmount)
};
db.TransactionRequests.Add(transaction);
await db.SaveChangesAsync();
payment.MerchantTransactionId = transaction.Id;
}
if (string.IsNullOrEmpty(payment.ProviderTransactionId))
{
var transaction = new TransactionRequest
{
Address = payment.ServiceProviderWallet,
Amount = GraftConvert.ToAtomicUnits(payment.ServiceProviderFee)
};
db.TransactionRequests.Add(transaction);
await db.SaveChangesAsync();
payment.ProviderTransactionId = transaction.Id;
}
if (State != WatchableServiceState.OK)
{
SetState(WatchableServiceState.OK);
}
sw.Stop();
UpdateStopwatchMetrics(sw, true);
totalPaymentsBySession++;
Metrics[$"Total Payments By Session"] = totalPaymentsBySession.ToString();
totalAmountPaymentBySession += payment.ReceivedAmount;
Metrics[$"Total Received Payments By Session"] = totalAmountPaymentBySession.ToString();
}
catch (Exception ex)
{
SetState(WatchableServiceState.Error, ex.Message);
throw;
}
finally
{
LastOperationTime = DateTime.UtcNow;
}
}
internal async Task <PaymentStatus> Pay(string id, int blockNumber, string address, decimal amount)
{
// sale_details -----------------------------------------
var dapiSaleDetailsParams = new DapiSaleDetailsParams
{
PaymentId = id,
BlockNumber = blockNumber
};
var saleDetailsResult = await _dapi.SaleDetails(dapiSaleDetailsParams);
// prepare payment
var destinations = new List <Destination>();
// add fee for each node in the AuthSample
ulong totalAuthSampleFee = 0;
foreach (var item in saleDetailsResult.AuthSample)
{
destinations.Add(new Destination {
Amount = item.Fee, Address = item.Address
});
totalAuthSampleFee += item.Fee;
}
// destination - ServiceProvider
destinations.Add(new Destination
{
Amount = GraftConvert.ToAtomicUnits(amount) - totalAuthSampleFee,
Address = address
});
var transferParams = new TransferParams
{
Destinations = destinations.ToArray(),
DoNotRelay = true,
GetTxHex = true,
GetTxMetadata = true,
GetTxKey = true
};
var transferResult = await _wallet.TransferRta(transferParams);
// DAPI pay
var payParams = new DapiPayParams
{
Address = address,
PaymentId = id,
BlockNumber = blockNumber,
Amount = GraftConvert.ToAtomicUnits(amount),
Transactions = new string[] { transferResult.TxBlob }
};
var payResult = await _dapi.Pay(payParams);
return(await GetSaleStatus(id, blockNumber));
}
public async Task <int> Sale(string id, decimal amount)
{
var dapiParams = new DapiSaleParams
{
PaymentId = id,
SaleDetails = "exchange",
Address = _settings.GraftWalletAddress,
Amount = GraftConvert.ToAtomicUnits(amount)
};
var res = await _dapi.Sale(dapiParams);
return(res.BlockNumber);
}
async Task <Payment> GraftSale(GatewaySaleParams model, Terminal terminal)
{
var graftRate = await _rateCache.GetRateToUsd("GRFT");
var graftAmount = model.SaleAmount / graftRate;
var payment = new Payment
{
Id = Guid.NewGuid().ToString(),
TransactionDate = DateTime.UtcNow,
Status = PaymentStatus.New,
TerminalId = terminal.Id,
StoreId = terminal.StoreId,
ServiceProviderId = terminal.ServiceProviderId,
SaleAmount = model.SaleAmount,
SaleCurrency = model.SaleCurrency,
PayToSaleRate = graftRate,
GraftToSaleRate = graftRate,
PayCurrency = model.PayCurrency,
PayAmount = graftAmount,
ServiceProviderFee = 0,
ExchangeBrokerFee = 0,
MerchantAmount = graftAmount,
SaleDetails = model.SaleDetails
};
var dapiParams = new DapiSaleParams
{
PaymentId = payment.Id,
SaleDetails = model.SaleDetails,
Address = terminal.Merchant.WalletAddress,
Amount = GraftConvert.ToAtomicUnits(payment.PayAmount)
};
//todo
//var dapiResult = await _dapi.Sale(dapiParams);
//payment.Status = PaymentStatus.Waiting;
//payment.BlockNumber = dapiResult.BlockNumber;
//payment.PayWalletAddress = $"{payment.Id};{terminal.Merchant.WalletAddress};{payment.PayAmount:N8};{dapiResult.BlockNumber}";
return(payment);
}
public async Task ProcessExchange(Exchange exchange, ApplicationDbContext db)
{
try
{
var sw = new Stopwatch();
sw.Start();
if (string.IsNullOrEmpty(exchange.BuyerTransactionId))
{
exchange.Log($"Initiated payout GRAFT transaction of {exchange.BuyAmount}");
var transaction = new TransactionRequest
{
Address = exchange.BuyerWallet,
Amount = GraftConvert.ToAtomicUnits(exchange.BuyAmount)
};
db.TransactionRequests.Add(transaction);
await db.SaveChangesAsync();
exchange.BuyerTransactionId = transaction.Id;
}
if (State != WatchableServiceState.OK)
{
SetState(WatchableServiceState.OK);
}
sw.Stop();
UpdateStopwatchMetrics(sw, true);
totalExchangesBySession++;
Metrics[$"Total Payments By Session"] = totalExchangesBySession.ToString();
totalAmountExchangeBySession += exchange.ReceivedAmount;
Metrics[$"Total Received Exchange By Session"] = totalAmountExchangeBySession.ToString();
}
catch (Exception ex)
{
SetState(WatchableServiceState.Error, ex.Message);
throw;
}
finally
{
LastOperationTime = DateTime.UtcNow;
}
}
public static async void Run()
{
try
{
//var wallet = new Wallet("http://54.84.187.74:29982/", "", "");
var wallet = new Wallet("http://54.84.187.74:29817/", "", "");
//var wallet = new Wallet("http://100.24.50.163:28682/", "", "");
var address = await wallet.GetAddress();
var balance = await wallet.GetBalance();
Console.WriteLine($"Wallet {address} \nbalance: {GraftConvert.FromAtomicUnits(balance.Balance)}\nUnlocked balance: {GraftConvert.FromAtomicUnits(balance.UnlockedBalance)}");
// params
ulong amount = GraftConvert.ToAtomicUnits(1.23M);
string merchantWalletAddress = "FAPnEQ1ev195ntzFnZGtHWDocyDaDPxUyV9SLp1e4seE1QDewvnMotsUwBYLFU5RsDBnJqpQFSsYjZUfP7g1urucLoiSPCv";
string paymentId = Guid.NewGuid().ToString();
//18.214.197.224 rta - alpha1
//18.214.197.50 rta - alpha2
//35.169.179.171 rta - alpha3
//34.192.115.160 rta - alpha4
var dapi = new GraftDapi("http://18.214.197.224:28690/dapi/v2.0/");
//var dapi = new GraftDapi("http://100.24.50.163:28690/dapi/v2.0/");
// sale -----------------------------------------
var dapiParams = new DapiSaleParams
{
PaymentId = paymentId,
SaleDetails = "sale details string",
Address = merchantWalletAddress,
Amount = amount
};
var saleResult = await dapi.Sale(dapiParams);
Console.WriteLine($">>> Sale result: {saleResult.PaymentId}, {saleResult.BlockNumber}");
// sale_status -----------------------------------------
var dapiStatusParams = new DapiSaleStatusParams
{
PaymentId = paymentId,
BlockNumber = saleResult.BlockNumber
};
var saleStatusResult = await dapi.GetSaleStatus(dapiStatusParams);
Console.WriteLine($"Sale status: {saleStatusResult.Status}");
// sale_details -----------------------------------------
var dapiSaleDetailsParams = new DapiSaleDetailsParams
{
PaymentId = paymentId,
BlockNumber = saleResult.BlockNumber
};
var saleDetailsResult = await dapi.SaleDetails(dapiSaleDetailsParams);
var json = JsonConvert.SerializeObject(saleDetailsResult, Formatting.Indented);
Console.WriteLine($"Sale Details:\n{json}");
// prepare payment
var destinations = new List <Destination>();
ulong totalAuthSampleFee = 0;
foreach (var item in saleDetailsResult.AuthSample)
{
destinations.Add(new Destination {
Amount = item.Fee, Address = item.Address
});
totalAuthSampleFee += item.Fee;
}
destinations.Add(new Destination {
Amount = amount - totalAuthSampleFee, Address = merchantWalletAddress
});
var transferParams = new TransferParams
{
Destinations = destinations.ToArray(),
//PaymentId = paymentId,
DoNotRelay = true,
GetTxHex = true,
GetTxMetadata = true,
GetTxKey = true
};
var transferResult = await wallet.TransferRta(transferParams);
json = JsonConvert.SerializeObject(transferResult, Formatting.Indented);
//Console.WriteLine($"Transfer Result:\n{json}");
Console.WriteLine($"Transfer Result: {transferResult.Amount}");
// DAPI pay
var payParams = new DapiPayParams
{
Address = merchantWalletAddress,
PaymentId = paymentId,
BlockNumber = saleResult.BlockNumber,
Amount = amount,
Transactions = new string[] { transferResult.TxBlob }
};
json = JsonConvert.SerializeObject(payParams, Formatting.Indented);
Debug.WriteLine($"Pay Parameters:\n{json}");
var payResult = await dapi.Pay(payParams);
json = JsonConvert.SerializeObject(payResult, Formatting.Indented);
Console.WriteLine($"Pay Result:\n{json}");
while (true)
{
saleStatusResult = await dapi.GetSaleStatus(dapiStatusParams);
Console.WriteLine($"Sale status: {saleStatusResult.Status}");
await Task.Delay(1000);
//saleDetailsResult = await dapi.SaleDetails(dapiSaleDetailsParams);
//json = JsonConvert.SerializeObject(saleDetailsResult, Formatting.Indented);
//Console.WriteLine($"Sale Details:\n{json}");
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
