public IActionResult CalculateTotal([FromBody] CalculateTotalModel model)
{
if (model.Roster.Count == 0)
{
return(Ok(0));
}
var usd = model.Roster.Aggregate(
0d,
(total, item) => total + _currencyConverter.ConvertToUSD(item.CurrencyAbbrv, item.Value));
var convertedTotal = _currencyConverter.ConvertFromUSD(model.TargetCurrencyAbbrv, usd);
return(Ok(Math.Round(convertedTotal, 2)));
}