/// <summary>
/// Gets exchange rates of Privatbank.
/// Reference: <https://api.privatbank.ua/#p24/exchange>
/// </summary>
/// <returns></returns>
public async Task <IReadOnlyCollection <PrivatbankExchangeRate> > GetBankExchangeRatesAsync()
{
List <PrivatbankExchangeRate> result = new List <PrivatbankExchangeRate>();
foreach (string type in currencyTypes)
{
HttpResponseMessage response = await _privatbankClient.GetPublicDataAsync($"pubinfo?json&exchange&coursid={type}");
string json = await response.Content.ReadAsStringAsync();
var ratesResponse = JsonConvert.DeserializeObject <IEnumerable <ExchangeRateResponse> >(json);
IEnumerable <PrivatbankExchangeRate> rates = ratesResponse
.Select(r => new PrivatbankExchangeRate(
ISO4217CurrencyCompatibility.GetActive(r.Ccy),
ISO4217CurrencyCompatibility.GetActive(r.Base_ccy),
r.Buy,
r.Sale));
result.AddRange(rates);
}
return(result);
}
