/// <summary>
/// Downloads all symbols from the exchanges and filters out the coins with enough 24hr Volume
/// </summary>
/// <returns></returns>
private void FindCoinsWithEnoughVolume()
{
_symbols = new List <ExtendedSymbol>();
var allSymbolsMeta = _api.GetMarketSymbolsMetadataAsync().Result;
var allTickers = _api.GetTickersAsync().Result;
// for each symbol
foreach (var metadata in allSymbolsMeta)
{
string symbol = metadata.MarketSymbol.ToUpperInvariant();
if (!IsValidCurrency(symbol))
{
// ignore, symbol has wrong currency
continue;
}
// check 24hr volume
var ticker = allTickers.FirstOrDefault(e => e.Key == symbol).Value;
var volume = ticker.Volume.QuoteCurrencyVolume;
if (_api is ExchangeBittrexAPI)
{
// bittrex reports wrong volume :-(
volume = ticker.Volume.BaseCurrencyVolume;
}
if (volume < _settings.Min24HrVolume)
{
// ignore since 24hr volume is too low
continue;
}
if (ticker.Ask < _settings.MinPrice)
{
Trace.WriteLine($"Ignoring because price is too low: {ticker.Ask}");
continue;
}
SymbolTrend fourHourTrend = new SymbolTrend(4);
SymbolTrend oneHourTrend = new SymbolTrend(1);
// add to list
ExtendedSymbol extendedSymbol = new ExtendedSymbol()
{
Symbol = metadata,
Ticker = ticker,
Trends = new SymbolTrend[2]
};
extendedSymbol.Trends[0] = fourHourTrend;
extendedSymbol.Trends[1] = oneHourTrend;
_symbols.Add(extendedSymbol);
}
_symbols = _symbols.OrderBy(e => e.Symbol.MarketSymbol).ToList();
}
public void FinalizeTrendCandlesLookup(bool wasSuccesful)
{
// schedule the next time
if (wasSuccesful)
{
SymbolTrend firstTrend = _symbols[0].Trends[0];
MarketCandle candle = firstTrend.Candle;
nextFetchCandlesTime = candle.Timestamp.AddHours(firstTrend.TimeframeInHours);
}
else
{
nextFetchCandlesTime = DateTime.UtcNow.AddMinutes(5);
}
}
