Change price type float to int

http/pricing.go

@@ -5,5 +5,5 @@ type ProductPriceRequest struct {
 }
 
 type ProductPriceResponse struct {
-	Price float64 `json:"price"`
+	Price int `json:"price"`
 }

model/pricing.go

@@ -3,5 +3,5 @@ package model
 type ProductPriceModel struct {
 	ID    int    `db:"id"`
 	PID   string `db:"pid"`
-	Price float64 `db:"price"`
+	Price int    `db:"price"`
 }