add saving cfg

admin.go

@@ -113,6 +113,18 @@ func (a *AdminConfig) Run() {
 		})
 	})
 
+	r.GET("/save", func(c *gin.Context) {
+		if err := cfg.Save(); err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{
+				"message": "error",
+			})
+		} else {
+			c.JSON(http.StatusOK, gin.H{
+				"message": "done",
+			})
+		}
+	})
+
 	fsys, _ := fs.Sub(assets, "assets/static")
 	r.StaticFS("/assets", http.FS(fsys))