/// <summary>
/// USD per Coin
/// </summary>
/// <param name="fiatCoin">Fiat coin</param>
/// <param name="date">Date</param>
public static decimal UsdPerCoin(ECoin fiatCoin, DateTime date)
{
var down = DownloadHelper.Download <FiatResult>($"https://api.exchangeratesapi.io/{date.ToString("yyyy-MM-dd")}?base=USD", true);
if (down != null && down.Rates.TryGetValue(fiatCoin.ToString(), out var value))
{
return(value);
}
throw new ArgumentException();
}
/// <summary>
/// Get coin
/// </summary>
/// <param name="coin">Coin</param>
/// <returns>Coin</returns>
private string GetCoin(ECoin coin)
{
switch (coin)
{
case ECoin.EUR:
case ECoin.USD:
case ECoin.USDT:
case ECoin.BNB:
case ECoin.BTC:
case ECoin.ETH: return(coin.ToString());
}
throw new ArgumentException(nameof(coin));
}
/// <summary>
/// Get coin id
/// </summary>
/// <param name="coin">Coin</param>
/// <returns>Return id</returns>
private string GetCoinId(ECoin coin)
{
switch (coin)
{
case ECoin.BTC:
case ECoin.ETH:
case ECoin.BNB:
case ECoin.USDT:
{
if (!_coinCache.TryGetValue(coin.ToString(), out var value))
{
throw new ArgumentException(nameof(coin));
}
return(value);
}
default: throw new ArgumentException(nameof(coin));
}
}