internal override async Task RefreshLastTrade(
TradingPair tradingPair)
{
// https://www.binance.com/api/v1/trades?symbol=ETHBTC&limit=1
List <BinanceTradeJson> tradeHistory = await Get <List <BinanceTradeJson> >(
$"api/v1/trades?symbol={GetPairId(tradingPair)}&limit=1");
if (tradeHistory.Count > 0)
{
BinanceTradeJson history = tradeHistory[0];
decimal price = decimal.Parse(history.price);
decimal volume = decimal.Parse(history.qty);
tradingPair.lastTrade = new LastTrade(price, volume);
}
}
public void AddTradingPair(
string baseCoinTicker,
string quoteCoinTicker,
decimal askPrice,
decimal bidPrice,
bool?isInactive = null)
{
if (string.IsNullOrWhiteSpace(baseCoinTicker) ||
string.IsNullOrWhiteSpace(quoteCoinTicker))
{
return;
}
Debug.Assert(askPrice == 0 ||
bidPrice == 0 ||
askPrice >= bidPrice ||
supportsOverlappingBooks);
if (tickerLowerToCoin.TryGetValue(baseCoinTicker.ToLowerInvariant(),
out Coin baseCoin) == false)
{ // May be missing due to coin filtering (e.g. no Tether)
return;
}
if (tickerLowerToCoin.TryGetValue(quoteCoinTicker.ToLowerInvariant(),
out Coin quoteCoin) == false)
{ // May be missing due to book's listing status
return;
}
TradingPair pair = quoteCoin.AddPair(this,
baseCoin,
askPrice,
bidPrice);
if (isInactive != null)
{
pair.isInactive = isInactive.Value;
}
}
internal virtual Task RefreshLastTrade(
TradingPair tradingPair)
{
return(null);
}