show some sections only to admin user

controllers/userController.go

@@ -141,10 +141,12 @@ func (rc *UserController) LoginHandler(c *gin.Context) {
 }
 
 func CreateSessionData(c *gin.Context, extra any) gin.H {
-	_, exists := c.Get("user")
+	user, exists := c.Get("user")
+	userImpl, _ := user.(models.User)
 
 	return gin.H{
 		"loggedIn": exists,
+		"isAdmin":  userImpl.IsAdmin,
 		"data":     extra,
 	}
 }