protected override decimal InternalGetFiatPrice(ITradeParser parser, ECoin coin, DateTime date)
{
if (coin == ECoin.USD)
{
return(FiatProviderHelper.UsdPerCoin(Coin, date));
}
if (_coinCache.Count == 0)
{
// Fill cache
var coins = DownloadHelper.Download <CoinInfo[]>("https://api.coinpaprika.com/v1/coins", false);
foreach (var c in coins.Where(u => u.Rank > 0).OrderBy(u => u.Rank))
{
if (!_coinCache.ContainsKey(c.Symbol))
{
_coinCache[c.Symbol] = c.Id;
}
}
var exchages = DownloadHelper.Download <ExchageInfo[]>("https://api.coinpaprika.com/v1/exchanges", false);
foreach (var exchage in exchages.OrderBy(u => u.Active))
{
if (!_exchangeCache.ContainsKey(exchage.Name))
{
_exchangeCache[exchage.Name] = exchage.Id;
}
}
}
var preparedDate = date.AddSeconds(-date.Second);
preparedDate = preparedDate.AddMinutes(-5);
var ticks = DownloadHelper.Download <TickInfo[]>(
$"https://api.coinpaprika.com/v1/tickers/{GetCoinId(coin)}/historical?start={PrepareDate(preparedDate)}&limit=10"e=usd&interval=5m");
var usdPrice = 0M;
foreach (var tick in ticks.OrderBy(u => u.Date))
{
if (tick.Date > date)
{
break;
}
usdPrice = tick.Price;
}
return(UsdToPrice(usdPrice, date));
}
/// <summary>
/// Get fiat price for one coin in specific date
/// </summary>
/// <param name="parser">Parser</param>
/// <param name="coin">Coin</param>
/// <param name="date">Date</param>
/// <returns>Price</returns>
protected override decimal InternalGetFiatPrice(ITradeParser parser, ECoin coin, DateTime date)
{
if (coin == ECoin.USD)
{
return(FiatProviderHelper.UsdPerCoin(Coin, date));
}
var ret = DownloadHelper.Download <JObject>
(
$"http://api.coinlayer.com/{date.ToString("yyyy-MM-dd")}?access_key={ApiKey}&symbols={GetCoin(coin)}&target={GetCoin(Coin)}&expand=1"
);
if (!ret.TryGetValue("success", out var sucess) ||
!sucess.Value <bool>() ||
!ret.TryGetValue("rates", out var rates))
{
throw new ArgumentException();
}
var val = ((JProperty)rates.First).Value.ToObject <Entry>();
return(val.Rate);
}
