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 <BlockchainTransferResult> TransferAsync(BlockchainTransferCommand transfer)
{
BlockchainTransferResult result = new BlockchainTransferResult {
Blockchain = BlockchainType.Bitcoin
};
foreach (var transferAmountGroup in transfer.Amounts.GroupBy(x => x.Destination))
{
string destination = transferAmountGroup.Key;
var sources = transferAmountGroup.Select(x =>
{
switch (transfer.AssetId)
{
case LykkeConstants.BitcoinAsset:
return(new ToOneAddress(x.Source, x.Amount));
case LykkeConstants.SatoshiAsset:
return(new ToOneAddress(x.Source, x.Amount?.SatoshiToBtc()));
default:
throw new AssetNotSupportedException(transfer.AssetId);
}
}).ToList();
OnchainResponse response = await _bitcoinServiceClient.TransactionMultipleTransfer(
Guid.NewGuid(),
destination,
LykkeConstants.BitcoinAsset,
_feeProvider.FeeRate,
_feeProvider.FixedFee,
sources);
var errorMessage = response.HasError
? $"Error placing MultipleTransfer transaction to destination address = {transferAmountGroup.Key}, code = {response.Error?.Code}, message = {response.Error?.Message}"
: string.Empty;
result.Transactions.Add(new BlockchainTransactionResult
{
Amount = sources.Sum(x => x.Amount ?? 0),
AssetId = LykkeConstants.BitcoinAsset,
Hash = response.Transaction?.Hash,
IdentityType = TransactionIdentityType.Hash,
Identity = response.Transaction?.Hash,
Sources = sources.Select(x => x.Address),
Destinations = new List <string> {
destination
},
Error = errorMessage
});
}
return(result);
}
public async Task <TransferResult> ExecuteAsync(TransferCommand transferCommand)
{
BlockchainType blockchainType = transferCommand.AssetId.GetBlockchainType();
IBlockchainApiClient blockchainClient = _blockchainClientProvider.Get(blockchainType);
BlockchainTransferResult blockchainTransferResult =
await blockchainClient.TransferAsync(transferCommand.ToBlockchainTransfer());
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 <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);
}