/// <summary>
/// Parses amount string returned by Privatbank API.
/// Returns null if failed to parse currency or value.
/// </summary>
/// <param name="amount">Amount string in format '-0.10 UAH'</param>
/// <returns></returns>
public override PrivatbankAmount Parse(string s)
{
if (string.IsNullOrWhiteSpace(s))
{
return(null);
}
string[] amountParts = s.Split(' ');
if (amountParts.Length != 2)
{
return(null);
}
string currency = ISO4217CurrencyCompatibility.GetActive(amountParts[1]);
decimal?amount = NullableDecimalConverter.Convert(amountParts[0]);
if (string.IsNullOrWhiteSpace(currency) || !amount.HasValue)
{
return(null);
}
return(new PrivatbankAmount(currency, amount.Value));
}
/// <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);
}