public async Task RightDownExchange(HistoryRowDto rowDto)
{
if (!rowDto.ToAmount.HasValue)
{
throw new ArgumentException();
}
//var from = await _dbContext.Currencies.FindAsync(rowDto.FromCurrency);
//var to = await _dbContext.Currencies.FindAsync(rowDto.ToCurrency);
var historyRow = new HistoryRow {
FromAmount = rowDto.FromAmount, ToAmount = rowDto.ToAmount.Value, FromCurrency = rowDto.FromCurrency, ToCurrency = rowDto.ToCurrency
};
await _dbContext.History.AddAsync(historyRow);
await _dbContext.SaveChangesAsync();
}
public async Task <ActionResult <decimal> > Get([FromQuery] HistoryRowDto rowDto)
{
decimal toAmount;
try
{
var rate = await GetRatesFromExternalApi(rowDto.FromCurrency, rowDto.ToCurrency);
toAmount = rowDto.FromAmount * rate.rates[rowDto.ToCurrency];
}
catch
{
return(BadRequest());
}
rowDto.ToAmount = toAmount;
await _historyService.RightDownExchange(rowDto);
return(toAmount);
}
