feat(router): add utility function to read server side resolver from …

…another resolver (#1144)

apps/docs-app/docs/features/data-fetching/server-side-data-fetching.md

@@ -104,3 +104,22 @@ export default class BlogComponent {
   data!: LoadResult<typeof load>;
 }
 ```
+
+## Accessing to the server load data
+
+Accessing to the server load data from `RouteMeta` resolver can be done using the `getLoadResolver` function provided by `@analogjs/router`.
+
+```ts
+import { getLoadResolver } from '@analogjs/router';
+
+export const routeMeta: RouteMeta = {
+  resolve: {
+    data: async (route) => {
+      // call server load resolver for this route from another resolver
+      const data = await getLoadResolver(route);
+
+      return { ...data };
+    },
+  },
+};
+```

packages/router/src/index.ts

@@ -11,3 +11,4 @@ export { provideFileRouter } from './lib/provide-file-router';
 export { MetaTag } from './lib/meta-tags';
 export { PageServerLoad, LoadResult } from './lib/route-types';
 export { injectLoad } from './lib/inject-load';
+export { getLoadResolver } from './lib/get-load-resolver';

packages/router/src/lib/get-load-resolver.ts

@@ -0,0 +1,13 @@
+import { ActivatedRouteSnapshot } from '@angular/router';
+
+/**
+ * Get server load resolver data for the route
+ *
+ * @param route Provides the route to get server load resolver
+ * @returns Returns server load resolver data for the route
+ */
+export async function getLoadResolver<T>(
+  route: ActivatedRouteSnapshot
+): Promise<T> {
+  return route.routeConfig?.resolve?.['load']?.(route);
+}