Poloniex ParseOrderTrades (#630)

BZ-CO · web-flow · commit 890025e55295 · 2021-08-17T18:40:11.000-07:00
Added null check when calculating average price.
diff --git a/src/ExchangeSharp/API/Exchanges/Poloniex/ExchangePoloniexAPI.cs b/src/ExchangeSharp/API/Exchanges/Poloniex/ExchangePoloniexAPI.cs
@@ -166,7 +166,7 @@ public void ParseOrderTrades(IEnumerable<JToken> trades, ExchangeOrderResult ord
 				decimal tradeAmt = trade["amount"].ConvertInvariant<decimal>();
 				decimal tradeRate = trade["rate"].ConvertInvariant<decimal>();
 
-				order.AveragePrice = (order.AveragePrice * order.AmountFilled + tradeAmt * tradeRate) / (order.AmountFilled + tradeAmt);
+				order.AveragePrice = (order.AveragePrice.GetValueOrDefault(decimal.Zero) * order.AmountFilled + tradeAmt * tradeRate) / (order.AmountFilled + tradeAmt);
 				if (order.Amount == 0m)
 				{
 					order.Amount += tradeAmt;

Original file line number	Diff line number	Diff line change
`@@ -166,7 +166,7 @@ public void ParseOrderTrades(IEnumerable<JToken> trades, ExchangeOrderResult ord`
`166`	`166`	`decimal tradeAmt = trade["amount"].ConvertInvariant<decimal>();`
`167`	`167`	`decimal tradeRate = trade["rate"].ConvertInvariant<decimal>();`
`168`	`168`
`169`		`- order.AveragePrice = (order.AveragePrice * order.AmountFilled + tradeAmt * tradeRate) / (order.AmountFilled + tradeAmt);`
	`169`	`+ order.AveragePrice = (order.AveragePrice.GetValueOrDefault(decimal.Zero) * order.AmountFilled + tradeAmt * tradeRate) / (order.AmountFilled + tradeAmt);`
`170`	`170`	`if (order.Amount == 0m)`
`171`	`171`	`{`
`172`	`172`	`order.Amount += tradeAmt;`