Enable router config pass data or function

types/react-router-config/index.d.ts

@@ -22,6 +22,7 @@ export interface RouteConfig {
     exact?: boolean;
     strict?: boolean;
     routes?: RouteConfig[];
+    [propName: string]: any;
 }
 
 export interface MatchedRoute<Params extends { [K in keyof Params]?: string }> {

types/react-router-config/react-router-config-tests.tsx

@@ -46,7 +46,8 @@ const routes: RouteConfig[] = [
                 routes: [{
                     path: "/child/:id/grand-child",
                     component: GrandChild
-                }]
+                }],
+                loadData: () => Promise.resolve({})
             }
         ]
     }