public async Task <IActionResult> Post()
{
var models = await _fileParser.CreateTransactionModelFromFile(Request.Form.Files[0]);
var modelState = TransactionModelValidator.ValidateModels(ModelState, models);
if (!modelState.IsValid)
{
return(BadRequest(modelState));
}
var modelsToImport = models.Select(e => _mapper.Map <Transaction>(e));
await _transactionImporter.ImportTransactions(modelsToImport);
return(Ok("File has been successfully imported."));
}