diff --git a/app/constants/common/common.go b/app/constants/common/common.go
index 693b7e2..a3a296b 100644
--- a/app/constants/common/common.go
+++ b/app/constants/common/common.go
@@ -3,4 +3,5 @@ package common
 const (
 	TOKEN_PRE   = "player_token_"
 	TOKEN_Admin = "Admin_token_"
+	ADMIN_V1    = "/admin/api/v1"
 )
diff --git a/app/http/requestmapping/backend.go b/app/http/requestmapping/backend.go
index 0467ec8..f85dbf3 100644
--- a/app/http/requestmapping/backend.go
+++ b/app/http/requestmapping/backend.go
@@ -1,12 +1,13 @@
 package requestmapping
 
 import (
+	"qteam/app/constants/common"
 	"qteam/app/http/entities/backend"
 )
 
 var BackendRequestMap = map[string]func() interface{}{
 
-	"/admin/api/v1/product/create": func() interface{} {
+	common.ADMIN_V1 + "/product/create": func() interface{} {
 		return new(backend.ProductCreateRequest)
 	},
 }