public async Task <IActionResult> Build([Required, FromBody] BuildSingleTransactionRequest request)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState.ToErrorResponse()));
}
var fromAddress = _dynamicService.GetBitcoinAddress(request.FromAddress);
if (fromAddress == null)
{
return(BadRequest(ErrorResponse.Create($"{nameof(request.FromAddress)} is not a valid")));
}
var toAddress = _dynamicService.GetBitcoinAddress(request.ToAddress);
if (toAddress == null)
{
return(BadRequest(ErrorResponse.Create($"{nameof(request.ToAddress)} is not a valid")));
}
if (request.AssetId != Asset.Dynamic.Id)
{
return(BadRequest(ErrorResponse.Create($"{nameof(request.AssetId)} was not found")));
}
var broadcast = await _dynamicService.GetBroadcastAsync(request.OperationId);
if (broadcast != null)
{
return(new StatusCodeResult(StatusCodes.Status409Conflict));
}
var build = await _buildRepository.GetAsync(request.OperationId);
if (build != null)
{
return(Ok(new BuildTransactionResponse()
{
TransactionContext = build.TransactionContext
}));
}
var amount = Conversions.CoinsFromContract(request.Amount, Asset.Dynamic.Accuracy);
var fromAddressBalance = await _dynamicService.GetAddressBalance(request.FromAddress);
var fee = _dynamicService.GetFee();
var requiredBalance = request.IncludeFee ? amount : amount + fee;
if (amount < fee)
{
return(BadRequest(BlockchainErrorResponse.FromKnownError(BlockchainErrorCode.AmountIsTooSmall)));
}
if (requiredBalance > fromAddressBalance)
{
return(BadRequest(BlockchainErrorResponse.FromKnownError(BlockchainErrorCode.NotEnoughBalance)));
}
await _log.WriteInfoAsync(nameof(TransactionsController), nameof(Build),
request.ToJson(), "Build transaction");
var transactionContext = await _dynamicService.BuildTransactionAsync(request.OperationId, fromAddress,
toAddress, amount, request.IncludeFee);
await _buildRepository.AddAsync(request.OperationId, transactionContext);
return(Ok(new BuildTransactionResponse()
{
TransactionContext = transactionContext
}));
}