reverse slice

api/binancePrice.go

@@ -27,9 +27,18 @@ func GetBinanceLatestPrice(symbol string) float64 {
 
 func GetBinanceLatestPrices(symbol string) []BinancePrice {
 	var binancePrices []BinancePrice
-	global.DB.Where("symbol = ? ", symbol).Order("id desc").Find(&binancePrices)
+	//global.DB.Where("symbol = ? ", symbol).Find(&binancePrices)
+	global.DB.Where("symbol = ? ", symbol).Order("id desc").Limit(500).Find(&binancePrices)
 	//global.DB.Where("symbol = ? order by id desc", symbol).Limit(30).Find(&binancePrices)
-	return binancePrices
+	reverseSlice := func(in []BinancePrice) []BinancePrice {
+		out := make([]BinancePrice, len(in))
+		for i := range in {
+			out[i] = in[len(in)-1-i]
+		}
+		return out
+	}
+	return reverseSlice(binancePrices)
+
 }
 
 func GetSerivers(symbol string) (timeUpdate []string, symbolPrice []float64) {