public async Task <BuiltTransactionInfo> GetOrBuildTransferTransaction(Guid operationId,
BitcoinAddress fromAddress,
PubKey fromAddressPubkey,
BitcoinAddress toAddress,
string assetId,
Money amountToSend,
bool includeFee)
{
var existingOperation = await _operationMetaRepository.Get(operationId);
if (existingOperation != null)
{
var existingAmount = existingOperation.IncludeFee
? existingOperation.AmountSatoshi + existingOperation.FeeSatoshi
: existingOperation.AmountSatoshi;
if (existingOperation.FromAddress != fromAddress.ToString() ||
existingOperation.ToAddress != toAddress.ToString() ||
existingOperation.AssetId != assetId ||
existingOperation.IncludeFee != includeFee ||
existingAmount != amountToSend.Satoshi)
{
throw new BusinessException("Conflict in operation parameters", ErrorCode.Conflict);
}
return(await GetExistingTransaction(existingOperation.OperationId, existingOperation.Hash));
}
var builtTransaction = await _transactionBuilder.GetTransferTransaction(fromAddress, fromAddressPubkey, toAddress, amountToSend, includeFee);
var builtTransactionInfo = new BuiltTransactionInfo
{
TransactionHex = builtTransaction.TransactionData.ToHex(),
UsedCoins = builtTransaction.UsedCoins
};
var txHash = builtTransaction.TransactionData.GetHash().ToString();
await _transactionBlobStorage.AddOrReplaceTransaction(operationId, txHash, TransactionBlobType.Initial, builtTransactionInfo.ToJson(_network));
var operation = OperationMeta.Create(operationId, txHash, fromAddress.ToString(), toAddress.ToString(), assetId,
builtTransaction.Amount.Satoshi, builtTransaction.Fee.Satoshi, includeFee);
if (await _operationMetaRepository.TryInsert(operation))
{
return(builtTransactionInfo);
}
existingOperation = await _operationMetaRepository.Get(operationId);
return(await GetExistingTransaction(operationId, existingOperation.Hash));
}
public async Task <BuiltTransactionInfo> GetOrBuildTransferTransactionAsync(Guid operationId,
IList <OperationInput> inputs,
IList <OperationOutput> outputs,
OperationType operationType,
string assetId,
bool includeFee)
{
var existingOperation = await _operationMetaRepository.GetAsync(operationId);
if (existingOperation != null)
{
if (!OperationMetaComparer.Compare(existingOperation, inputs, outputs, assetId, includeFee))
{
throw new BusinessException("Conflict in operation parameters", ErrorCode.Conflict);
}
return(await GetExistingTransaction(existingOperation.OperationId, existingOperation.Hash));
}
IBuiltTransaction builtTransaction;
switch (operationType)
{
case OperationType.Single:
builtTransaction = await _transactionBuilder.GetTransferTransactionAsync(inputs.Single(), outputs.Single(), includeFee);
break;
case OperationType.ManyInputs:
builtTransaction = await _transactionBuilder.GetManyInputsTransferTransactionAsync(inputs, outputs.Single(), includeFee);
break;
case OperationType.ManyOutputs:
builtTransaction = await _transactionBuilder.GetManyOutputsTransferTransactionAsync(inputs.Single(), outputs, includeFee);
break;
default:
throw new ArgumentOutOfRangeException(nameof(operationType));
}
var builtTransactionInfo = new BuiltTransactionInfo
{
TransactionHex = builtTransaction.TransactionData.ToHex(),
UsedCoins = builtTransaction.UsedCoins
};
await _transactionOutputsService.AddInternalOutputs(operationId,
builtTransaction.TransactionData.Outputs.AsCoins());
var txHash = builtTransaction.TransactionData.GetHash().ToString();
await _transactionBlobStorage.AddOrReplaceTransactionAsync(operationId, txHash, TransactionBlobType.Initial,
builtTransactionInfo.ToJson(_network));
var operation = OperationMeta.Create(operationId, txHash, inputs, outputs, assetId, builtTransaction.Fee.Satoshi, includeFee);
if (await _operationMetaRepository.TryInsertAsync(operation))
{
return(builtTransactionInfo);
}
existingOperation = await _operationMetaRepository.GetAsync(operationId);
return(await GetExistingTransaction(operationId, existingOperation.Hash));
}
