public async Task <IActionResult> ExchangeRate(
[FromRoute] string baseSymbol,
[FromRoute] string targetSymbol,
[FromServices] IExchangeRateService exchangeRateService,
[FromServices] IValidationService validationService)
{
if (!validationService.DoesConfigurationPairExist(baseSymbol, targetSymbol))
{
return(BadRequest($"Not configured symbols {baseSymbol} and {targetSymbol} "));
}
return(await HandleRequest(exchangeRateService.CurrentExchangeRate(baseSymbol, targetSymbol)));
}