init code

internal/data/imarket.go

@@ -0,0 +1,8 @@
+package data
+
+type IMarket interface {
+	GetFuturePrice(symbol string) (float64, float64, int64, bool)
+	GetAllFundRate() (map[string]float64, map[string]int64)
+
+	GetSpotPrice(symbol string) (float64, bool)
+}