public static ExchangeRateOutputModel GetExchangeRateStatistics(string startDate, string endDate, string baseCurrency, string targetCurrency)
{
int retryCounter = 0;
retry:
try
{
ExchangeRateHistoryServiceResponseModel exchangeRateHistory = ExchangeRateService.GetExchangeRateHistory(startDate, endDate, baseCurrency,
targetCurrency).Result;
List <ExchangeRateDateModel> exchangeRateDateModelList = exchangeRateHistory.rates.Select(x => new ExchangeRateDateModel
{
Date = x.Key,
Rate = x.Value.ContainsKey(targetCurrency.ToUpper()) ?
x.Value.Where(y => y.Key.Equals(targetCurrency, StringComparison.OrdinalIgnoreCase)).FirstOrDefault().Value : 0
}).OrderBy(z => z.Rate).ToList();
return(GetCurrencyStatisticsDataLogic(exchangeRateDateModelList));
}
catch (Exception exService)
{
retryCounter++;
if (retryCounter <= 2)
{
goto retry;
}
else
{
throw exService;
}
}
}
public async Task <ActionResult> GetExchangeRateHistory(DateTime startDate, DateTime endDate, string baseCurrency, string targetCurrency)
{
var _service = new ExchangeRateService();
var res = await _service.GetExchangeRateHistory(startDate, endDate, baseCurrency, targetCurrency);
return(Ok(res));
}