protected override async Task <ExchangeCloseMarginPositionResult> OnCloseMarginPositionAsync(string marketSymbol)
{
List <object> orderParams = new List <object>
{
"currencyPair", marketSymbol
};
JToken result = await MakePrivateAPIRequestAsync("closeMarginPosition", orderParams);
ExchangeCloseMarginPositionResult closePositionResult = new ExchangeCloseMarginPositionResult()
{
Success = result["success"].ConvertInvariant <bool>(),
Message = result["message"].ToStringInvariant(),
MarketSymbol = marketSymbol
};
JToken symbolTrades = result["resultingTrades"];
if (symbolTrades == null || !symbolTrades.Any())
{
return(closePositionResult);
}
JToken trades = symbolTrades[marketSymbol];
if (trades != null && trades.Children().Count() != 0)
{
ParseClosePositionTrades(trades, closePositionResult);
}
return(closePositionResult);
}
public void ParseClosePositionTrades(IEnumerable <JToken> trades, ExchangeCloseMarginPositionResult closePosition)
{
bool closePositionMetadataSet = false;
var tradeIds = new List <string>();
foreach (JToken trade in trades)
{
if (!closePositionMetadataSet)
{
closePosition.IsBuy = trade["type"].ToStringLowerInvariant() != "sell";
if (!string.IsNullOrWhiteSpace(closePosition.MarketSymbol))
{
closePosition.FeesCurrency = ParseFeesCurrency(closePosition.IsBuy, closePosition.MarketSymbol);
}
closePositionMetadataSet = true;
}
decimal tradeAmt = trade["amount"].ConvertInvariant <decimal>();
decimal tradeRate = trade["rate"].ConvertInvariant <decimal>();
closePosition.AveragePrice = (closePosition.AveragePrice * closePosition.AmountFilled + tradeAmt * tradeRate) / (closePosition.AmountFilled + tradeAmt);
closePosition.AmountFilled += tradeAmt;
tradeIds.Add(trade["tradeID"].ToStringInvariant());
if (closePosition.CloseDate == DateTime.MinValue)
{
closePosition.CloseDate = trade["date"].ToDateTimeInvariant();
}
// fee is a percentage taken from the traded amount rounded to 8 decimals
closePosition.Fees += CalculateFees(tradeAmt, tradeRate, closePosition.IsBuy, trade["fee"].ConvertInvariant <decimal>());
}
closePosition.TradeIds = tradeIds.ToArray();
}