public async Task <IActionResult> SetDefaultAssets([FromBody] UpdateMerchantWalletDefaultAssetsModel request)
{
if (!request.Network.HasValue || request.Network == BlockchainType.None)
{
return(BadRequest(
ErrorResponse.Create(
"Invalid network value, possible values are: Bitcoin, Ethereum, EthereumIata")));
}
var assetsToValidate = new List <string>();
if (request.IncomingPaymentDefaults != null)
{
assetsToValidate.AddRange(request.IncomingPaymentDefaults);
}
if (request.OutgoingPaymentDefaults != null)
{
assetsToValidate.AddRange(request.OutgoingPaymentDefaults);
}
try
{
foreach (string assetToValidateId in assetsToValidate)
{
string lykkeAssetId = await _lykkeAssetsResolver.GetLykkeId(assetToValidateId);
if (await _assetsLocalCache.GetAssetByIdAsync(lykkeAssetId) == null)
{
throw new AssetUnknownException(lykkeAssetId);
}
}
await _merchantWalletService.SetDefaultAssetsAsync(
request.MerchantId,
request.Network.Value,
request.WalletAddress,
request.IncomingPaymentDefaults,
request.OutgoingPaymentDefaults);
return(NoContent());
}
catch (AssetUnknownException e)
{
_log.ErrorWithDetails(e, new { e.Asset });
return(NotFound(ErrorResponse.Create($"Asset not found [{e.Asset}]")));
}
catch (MerchantWalletNotFoundException e)
{
_log.ErrorWithDetails(e, new
{
e.MerchantId,
e.Network,
e.WalletAddress
});
return(NotFound(ErrorResponse.Create(e.Message)));
}
}
public async Task <IActionResult> SetAssetGeneralSettings([FromBody] UpdateAssetGeneralSettingsRequest request)
{
try
{
string lykkeAssetId = await _lykkeAssetsResolver.GetLykkeId(request.AssetDisplayId);
Asset asset = await _assetsLocalCache.GetAssetByIdAsync(lykkeAssetId);
if (asset == null)
{
return(NotFound(ErrorResponse.Create($"Asset {request.AssetDisplayId} not found")));
}
await _assetSettingsService.SetGeneralAsync(Mapper.Map <AssetGeneralSettings>(request));
return(NoContent());
}
catch (InvalidRowKeyValueException e)
{
_log.ErrorWithDetails(e, new
{
e.Variable,
e.Value
});
return(NotFound(ErrorResponse.Create("Asset not found")));
}
catch (AssetUnknownException e)
{
_log.ErrorWithDetails(e, new { e.Asset });
return(NotFound(ErrorResponse.Create($"Asset {e.Asset} can't be resolved")));
}
}
public async Task <IActionResult> SetGeneralAssetsSettings([FromBody] UpdateAssetAvailabilityRequest request)
{
try
{
string lykkeAssetId = await _lykkeAssetsResolver.GetLykkeId(request.AssetId);
Asset asset = await _assetsLocalCache.GetAssetByIdAsync(lykkeAssetId);
if (asset == null)
{
return(NotFound(ErrorResponse.Create($"Asset {request.AssetId} not found")));
}
await _assetsAvailabilityService.SetGeneralAsync(request.AssetId, request.AvailabilityType,
request.Value);
return(NoContent());
}
catch (AssetUnknownException assetEx)
{
await _log.WriteErrorAsync(nameof(AssetsController), nameof(SetGeneralAssetsSettings),
new { assetEx.Asset }.ToJson(), assetEx);
return(NotFound(ErrorResponse.Create($"Asset {assetEx.Asset} can't be resolved")));
}
catch (Exception ex)
{
await _log.WriteErrorAsync(nameof(AssetsController), nameof(SetGeneralAssetsSettings), ex);
throw;
}
}
public async Task <IActionResult> AddRate([FromBody] AddAssetRateModel request)
{
try
{
string lykkeBaseAssetId = await _lykkeAssetsResolver.GetLykkeId(request.BaseAssetId);
if (await _assetsLocalCache.GetAssetByIdAsync(lykkeBaseAssetId) == null)
{
return(NotFound(ErrorResponse.Create("Base asset not found")));
}
string lykkeQuotingAssetId = await _lykkeAssetsResolver.GetLykkeId(request.QuotingAssetId);
if (await _assetsLocalCache.GetAssetByIdAsync(lykkeQuotingAssetId) == null)
{
return(NotFound(ErrorResponse.Create("Quoting asset not found")));
}
IAssetPairRate newRate = await _assetRatesService.AddAsync(Mapper.Map <AddAssetPairRateCommand>(request, opt =>
{
opt.Items["BaseAssetId"] = lykkeBaseAssetId;
opt.Items["QuotingAssetId"] = lykkeQuotingAssetId;
}));
return(Ok(Mapper.Map <AssetRateResponse>(newRate, opt =>
{
opt.Items["BaseAssetId"] = request.BaseAssetId;
opt.Items["QuotingAssetId"] = request.QuotingAssetId;
})));
}
catch (AssetUnknownException e)
{
_log.ErrorWithDetails(e, new { e.Asset });
return(NotFound(ErrorResponse.Create($"Asset not found [{e.Asset}]")));
}
catch (AssetPairRateStorageNotSupportedException e)
{
_log.ErrorWithDetails(e, new
{
e.BaseAssetId,
e.QuotingAssetId
});
return(StatusCode((int)HttpStatusCode.NotImplemented, ErrorResponse.Create(e.Message)));
}
}
public async Task <TransferResult> ExecuteAsync(TransferCommand transferCommand)
{
BlockchainType blockchainType = await _assetSettingsService.GetNetworkAsync(transferCommand.AssetId);
IBlockchainApiClient blockchainClient = _blockchainClientProvider.Get(blockchainType);
BlockchainTransferCommand cmd = new BlockchainTransferCommand(transferCommand.AssetId);
string lykkeAssetId = transferCommand.AssetId.IsGuid()
? transferCommand.AssetId
: await _lykkeAssetsResolver.GetLykkeId(transferCommand.AssetId);
foreach (var transferCommandAmount in transferCommand.Amounts)
{
decimal balance = await blockchainClient.GetBalanceAsync(transferCommandAmount.Source, lykkeAssetId);
if (transferCommandAmount.Amount == null)
{
if (balance > 0)
{
cmd.Amounts.Add(new TransferAmount
{
Amount = balance,
Source = transferCommandAmount.Source,
Destination = transferCommandAmount.Destination
});
continue;
}
throw new InsufficientFundsException(transferCommandAmount.Source, transferCommand.AssetId);
}
if (transferCommandAmount.Amount > balance)
{
throw new InsufficientFundsException(transferCommandAmount.Source, transferCommand.AssetId);
}
cmd.Amounts.Add(transferCommandAmount);
}
BlockchainTransferResult blockchainTransferResult = await blockchainClient.TransferAsync(cmd);
ITransfer transfer = await _transferRepository.AddAsync(new Transfer
{
AssetId = transferCommand.AssetId,
Blockchain = blockchainTransferResult.Blockchain,
CreatedOn = DateTime.UtcNow,
Amounts = transferCommand.Amounts,
Transactions = Mapper.Map <IEnumerable <TransferTransaction> >(blockchainTransferResult.Transactions)
});
return(Mapper.Map <TransferResult>(transfer));
}
public async Task ValidateTransfer(string walletAddress, string assetId, decimal transferAmount)
{
assetId = assetId.IsGuid() ? assetId : await _lykkeAssetsResolver.GetLykkeId(assetId);
BlockchainType network = await _assetSettingsService.GetNetworkAsync(assetId);
IBlockchainApiClient blockchainApiClient = _blockchainClientProvider.Get(network);
decimal balance = await blockchainApiClient.GetBalanceAsync(walletAddress, assetId);
if (balance < transferAmount)
{
throw new InsufficientFundsException(walletAddress, assetId);
}
}
public async Task <IActionResult> ResolvePaymentAssets(string merchantId, [FromQuery] string settlementAssetId)
{
IMerchant merchant = await _merchantService.GetAsync(merchantId);
if (merchant == null)
{
return(NotFound(ErrorResponse.Create("Couldn't find merchant")));
}
string lykkeAssetId = await _lykkeAssetsResolver.GetLykkeId(settlementAssetId);
Asset asset = await _assetsLocalCache.GetAssetByIdAsync(lykkeAssetId);
if (asset == null)
{
return(NotFound(ErrorResponse.Create("Couldn't find asset")));
}
try
{
IReadOnlyList <string> assets =
await _assetsAvailabilityService.ResolvePaymentAsync(merchantId, settlementAssetId);
return(Ok(new AvailableAssetsResponseModel {
Assets = assets
}));
}
catch (AssetUnknownException assetEx)
{
await _log.WriteErrorAsync(nameof(MerchantsController), nameof(ResolvePaymentAssets),
new { assetEx.Asset }.ToJson(), assetEx);
return(BadRequest(ErrorResponse.Create(assetEx.Message)));
}
catch (Exception ex)
{
await _log.WriteErrorAsync(nameof(MerchantsController), nameof(ResolvePaymentAssets), new
{
merchantId,
settlementAssetId
}.ToJson(), ex);
throw;
}
}
public async Task <IActionResult> ResolvePaymentAssets(string merchantId, [FromQuery] string settlementAssetId)
{
merchantId = Uri.UnescapeDataString(merchantId);
if (string.IsNullOrEmpty(settlementAssetId))
{
return(BadRequest(ErrorResponse.Create("Settlement asset id is invalid")));
}
try
{
string lykkeAssetId = await _lykkeAssetsResolver.GetLykkeId(settlementAssetId);
Asset asset = await _assetsLocalCache.GetAssetByIdAsync(lykkeAssetId);
if (asset == null)
{
return(NotFound(ErrorResponse.Create("Couldn't find asset")));
}
IReadOnlyList <string> assets =
await _assetSettingsService.ResolvePaymentAsync(merchantId, settlementAssetId);
return(Ok(new AvailableAssetsResponseModel {
Assets = assets
}));
}
catch (InvalidRowKeyValueException e)
{
_log.ErrorWithDetails(e, new
{
e.Variable,
e.Value
});
return(BadRequest(ErrorResponse.Create(e.Message)));
}
catch (AssetUnknownException e)
{
_log.ErrorWithDetails(e, new { e.Asset });
return(BadRequest(ErrorResponse.Create(e.Message)));
}
}
private async Task <(string AssetPairId, decimal PaymentAmount, decimal Rate)> GetPaymentInfoAsync(string settlementAssetId, string paymentAssetId, decimal amount, string merchantId, RequestMarkup requestMarkup)
{
string lykkePaymentAssetId = await _lykkeAssetsResolver.GetLykkeId(paymentAssetId);
string lykkeSettlementAssetId = await _lykkeAssetsResolver.GetLykkeId(settlementAssetId);
string assetPairId = $"{paymentAssetId}{settlementAssetId}";
IMarkup merchantMarkup;
try
{
merchantMarkup = await _markupService.ResolveAsync(merchantId, assetPairId);
}
catch (MarkupNotFoundException e)
{
_log.ErrorWithDetails(e, new
{
e.MerchantId,
e.AssetPairId
});
throw;
}
decimal paymentAmount, rate;
try
{
paymentAmount = await _calculationService.GetAmountAsync(lykkePaymentAssetId,
lykkeSettlementAssetId, amount, requestMarkup, merchantMarkup);
rate = await _calculationService.GetRateAsync(lykkePaymentAssetId, lykkeSettlementAssetId,
requestMarkup.Percent, requestMarkup.Pips, merchantMarkup);
}
catch (MarketPriceZeroException e)
{
_log.ErrorWithDetails(e, new { e.PriceType });
throw;
}
catch (UnexpectedAssetPairPriceMethodException e)
{
_log.ErrorWithDetails(e, new { e.PriceMethod });
throw;
}
catch (ZeroRateException e)
{
_log.ErrorWithDetails(e, new
{
lykkePaymentAssetId,
lykkeSettlementAssetId,
requestMarkup.Percent,
requestMarkup.Pips,
merchantMarkup
});
throw;
}
return(assetPairId, paymentAmount, rate);
}
public async Task <IOrder> GetLatestOrCreateAsync(IPaymentRequest paymentRequest, bool force = false)
{
IReadOnlyList <IOrder> orders = await _orderRepository.GetAsync(paymentRequest.Id);
IOrder latestOrder = orders.OrderByDescending(x => x.ExtendedDueDate).FirstOrDefault();
var now = DateTime.UtcNow;
if (latestOrder != null)
{
if (now < latestOrder.DueDate)
{
return(latestOrder);
}
if (now < latestOrder.ExtendedDueDate && !force)
{
return(latestOrder);
}
}
IMerchant merchant = await _merchantRepository.GetAsync(paymentRequest.MerchantId);
if (merchant == null)
{
throw new MerchantNotFoundException(paymentRequest.MerchantId);
}
string lykkePaymentAssetId = await _lykkeAssetsResolver.GetLykkeId(paymentRequest.PaymentAssetId);
string lykkeSettlementAssetId = await _lykkeAssetsResolver.GetLykkeId(paymentRequest.SettlementAssetId);
string assetPairId = $"{paymentRequest.PaymentAssetId}{paymentRequest.SettlementAssetId}";
RequestMarkup requestMarkup = Mapper.Map <RequestMarkup>(paymentRequest);
IMarkup merchantMarkup;
try
{
merchantMarkup = await _markupService.ResolveAsync(merchant.Id, assetPairId);
}
catch (MarkupNotFoundException ex)
{
await _log.WriteErrorAsync(nameof(OrderService), nameof(GetLatestOrCreateAsync), new
{
ex.MerchantId,
ex.AssetPairId
}.ToJson(), ex);
throw;
}
decimal paymentAmount, rate;
try
{
paymentAmount = await _calculationService.GetAmountAsync(lykkePaymentAssetId,
lykkeSettlementAssetId, paymentRequest.Amount, requestMarkup, merchantMarkup);
rate = await _calculationService.GetRateAsync(lykkePaymentAssetId, lykkeSettlementAssetId,
requestMarkup.Percent, requestMarkup.Pips, merchantMarkup);
}
catch (MarketPriceZeroException priceZeroEx)
{
_log.WriteError(nameof(GetLatestOrCreateAsync), new { priceZeroEx.PriceType }, priceZeroEx);
throw;
}
catch (UnexpectedAssetPairPriceMethodException assetPairEx)
{
_log.WriteError(nameof(GetLatestOrCreateAsync), new { assetPairEx.PriceMethod }, assetPairEx);
throw;
}
var order = new Order
{
MerchantId = paymentRequest.MerchantId,
PaymentRequestId = paymentRequest.Id,
AssetPairId = assetPairId,
SettlementAmount = paymentRequest.Amount,
PaymentAmount = paymentAmount,
DueDate = now.Add(_orderExpirationPeriods.Primary),
ExtendedDueDate = now.Add(_orderExpirationPeriods.Extended),
CreatedDate = now,
ExchangeRate = rate
};
IOrder createdOrder = await _orderRepository.InsertAsync(order);
await _log.WriteInfoAsync(nameof(OrderService), nameof(GetLatestOrCreateAsync), order.ToJson(),
"Order created.");
return(createdOrder);
}
public async Task <BlockchainTransferResult> TransferAsync(BlockchainTransferCommand transfer)
{
BlockchainTransferResult result = new BlockchainTransferResult {
Blockchain = BlockchainType.Ethereum
};
string lykkeAssetId = await _lykkeAssetsResolver.GetLykkeId(transfer.AssetId);
Asset asset = await _assetsLocalCache.GetAssetByIdAsync(lykkeAssetId);
if (asset.Type != AssetType.Erc20Token || !asset.IsTradable)
{
throw new AssetNotSupportedException(asset.Name);
}
ListOfErc20Token tokenSpecification =
await _assetsService.Erc20TokenGetBySpecificationAsync(new Erc20TokenSpecification { Ids = new[] { asset.Id } });
string tokenAddress = tokenSpecification?.Items.SingleOrDefault(x => x.AssetId == asset.Id)?.Address;
foreach (TransferAmount transferAmount in transfer.Amounts)
{
var transferRequest = Mapper.Map <TransferFromDepositRequest>(transferAmount,
opts => opts.Items["TokenAddress"] = tokenAddress);
object response = await _ethereumServiceClient.ApiLykkePayErc20depositsTransferPostAsync(
_ethereumSettings.ApiKey, transferRequest);
var errorMessage = string.Empty;
var operationId = string.Empty;
if (response is ApiException ex)
{
await _log.WriteWarningAsync(nameof(TransferAsync), transferAmount.ToJson(), ex.Error?.ToJson());
errorMessage = ex.Error?.Message;
}
else if (response is OperationIdResponse op)
{
operationId = op.OperationId;
}
else
{
throw new UnrecognizedApiResponse(response?.GetType().FullName ?? "Response object is null");
}
result.Transactions.Add(new BlockchainTransactionResult
{
Amount = transferAmount.Amount,
AssetId = asset.Name,
Hash = string.Empty,
IdentityType = TransactionIdentityType.Specific,
Identity = operationId,
Sources = new List <string> {
transferAmount.Source
},
Destinations = new List <string> {
transferAmount.Destination
},
Error = errorMessage
});
}
return(result);
}
public async Task <BlockchainTransferResult> TransferAsync(BlockchainTransferCommand transfer)
{
BlockchainTransferResult result = new BlockchainTransferResult {
Blockchain = BlockchainType.EthereumIata
};
string lykkeAssetId = await _lykkeAssetsResolver.GetLykkeId(transfer.AssetId);
Asset asset = await _assetsLocalCache.GetAssetByIdAsync(lykkeAssetId);
if (asset.Type != AssetType.Erc20Token)
{
throw new AssetNotSupportedException(asset.Name);
}
ListOfErc20Token tokenSpecification =
await _assetsService.Erc20TokenGetBySpecificationAsync(new Erc20TokenSpecification
{ Ids = new[] { asset.Id } });
string tokenAddress = tokenSpecification?.Items.SingleOrDefault(x => x.AssetId == asset.Id)?.Address;
foreach (TransferAmount transferAmount in transfer.Amounts)
{
var transferRequest = Mapper.Map <AirlinesTransferFromDepositRequest>(transferAmount,
opts =>
{
opts.Items["TokenAddress"] = tokenAddress;
opts.Items["AssetMultiplier"] = asset.MultiplierPower;
opts.Items["AssetAccuracy"] = asset.Accuracy;
});
object response = await _retryPolicy.ExecuteAsync(() => InvokeTransfer(transferRequest));
var ex = response as ApiException;
var operation = response as OperationIdResponse;
if (ex != null)
{
_log.Warning(ex.Error?.Message);
}
if (ex == null && operation == null)
{
throw new UnrecognizedApiResponse(response?.GetType().FullName ?? "Response object is null");
}
result.Transactions.Add(new BlockchainTransactionResult
{
Amount = transferAmount.Amount ?? 0,
AssetId = asset.DisplayId,
Hash = string.Empty,
IdentityType = TransactionIdentityType.Specific,
Identity = operation?.OperationId ?? string.Empty,
Sources = new List <string> {
transferAmount.Source
},
Destinations = new List <string> {
transferAmount.Destination
},
Error = ex?.Error?.Message ?? string.Empty,
ErrorType = ex.GetDomainError()
});
}
return(result);
}
public string Resolve(object source, object destination, string sourceMember, string destMember, ResolutionContext context)
{
return(_lykkeAssetsResolver.GetLykkeId(sourceMember).GetAwaiter().GetResult());
}