public async Task Deposit(long amount, ConstellationInfo.Asset asset, params KeyPair[] extraSigners)
{
var tx = await TransactionHelper.GetDepositTx(keyPair, constellation, Amount.FromXdr(amount), asset);
tx.Sign(keyPair);
foreach (var signer in extraSigners)
{
tx.Sign(signer);
}
await tx.Submit(constellation);
}
public async Task <MessageEnvelope> MakePayment(KeyPair destination, long amount, ConstellationInfo.Asset asset, bool waitForFinalize = true)
{
var paymentMessage = new PaymentRequest {
Amount = amount, Destination = destination, Asset = asset.Id
};
var response = (CentaurusResponse)await connection.SendMessage(paymentMessage.CreateEnvelope());
var result = await(waitForFinalize ? response.ResponseTask : response.AcknowledgmentTask);
return(result);
}
public async Task <MessageEnvelope> CreateOrder(long amount, double price, OrderSide side, ConstellationInfo.Asset asset, bool waitForFinalize = true)
{
var order = new OrderRequest {
Amount = amount, Price = price, Side = side, Asset = asset.Id
};
var response = (CentaurusResponse)await connection.SendMessage(order.CreateEnvelope());
var result = await(waitForFinalize ? response.ResponseTask : response.AcknowledgmentTask);
return(result);
}
public async Task <MessageEnvelope> Withdrawal(KeyPair destination, string amount, ConstellationInfo.Asset asset, bool waitForFinalize = true)
{
var paymentMessage = new WithdrawalRequest();
var tx = await TransactionHelper.GetWithdrawalTx(keyPair, constellation, destination, amount, asset);
paymentMessage.TransactionXdr = tx.ToArray();
var response = (CentaurusResponse)await connection.SendMessage(paymentMessage.CreateEnvelope());
var result = await(waitForFinalize ? response.ResponseTask : response.AcknowledgmentTask);
var txResultMessage = result.Message as ITransactionResultMessage;
if (txResultMessage is null)
{
throw new Exception($"Unexpected result type '{result.Message.MessageType}'");
}
tx.Sign(keyPair);
foreach (var signature in txResultMessage.TxSignatures)
{
tx.Signatures.Add(signature.ToDecoratedSignature());
}
var submitResult = await tx.Submit(constellation);
if (!submitResult.IsSuccess())
{
logger.Error($"Submit withdrawal failed. Result xdr: {submitResult.ResultXdr}");
}
return(result);
}
public static async Task <Transaction> GetDepositTx(KeyPair sourceAccount, ConstellationInfo constellation, string amount, ConstellationInfo.Asset asset)
{
using (var server = constellation.StellarNetwork.GetServer())
{
var txBuilder = await GetTxBuilder(server, sourceAccount);
txBuilder.AddOperation(new PaymentOperation.Builder((KeyPair)constellation.VaultPubKey, asset.StellarAsset, amount).Build());
var tx = txBuilder.Build();
return(tx);
}
}
public static async Task <Transaction> GetWithdrawalTx(KeyPair sourceAccount, ConstellationInfo constellation, KeyPair destination, string amount, ConstellationInfo.Asset asset)
{
using (var server = constellation.StellarNetwork.GetServer())
{
var txBuilder = await GetTxBuilder(server, sourceAccount);
if ((await server.GetAccountData(destination.AccountId)) == null)
{
throw new Exception($"{destination.AccountId} is not a part of Stellar Network.");
}
txBuilder.AddOperation(new PaymentOperation.Builder(destination, asset.StellarAsset, amount).SetSourceAccount(KeyPair.FromAccountId(constellation.Vault)).Build());
txBuilder.AddTimeBounds(new stellar_dotnet_sdk.TimeBounds(maxTime: DateTimeOffset.UtcNow.AddSeconds(60)));
var tx = txBuilder.Build();
return(tx);
}
}
