public async Task <IActionResult> GetAllRates(
[FromRoute] string baseSymbol,
[FromServices] IExchangeRateService exchangeRateService,
[FromServices] IValidationService validationService)
{
if (!validationService.IsProperBaseSymbol(baseSymbol))
{
return(BadRequest($"Incorrect Base Symbol: {baseSymbol}. Only EUR is supported"));
}
try
{
var allRates = await exchangeRateService.GetAllRates(baseSymbol);
return(new JsonResult(allRates));
}
catch (ExchangeRateException exception)
{
return(BadRequest(new ErrorModel($"{exception.Message}. {baseSymbol} is not supported. Only EUR is allowed as base currency")));
}
}
public async Task <bool> DoesSuchASymbolExist(string symbol)
{
var symbols = await ExchangeRateService.GetAllRates("EUR");
return(symbols.Any(symbolPair => symbolPair.Key.ToLower() == symbol.ToLower()));
}