Added swr for root

packages/app/src/interfaces/page-listing-results.ts

@@ -1,7 +1,12 @@
-import { IPageForItem } from './page';
+import { IPageForItem, IPageHasId } from './page';
 
 
 type ParentPath = string;
+
+export interface RootPageResult {
+  rootPage: IPageHasId
+}
+
 export interface AncestorsChildrenResult {
   ancestorsChildren: Record<ParentPath, Partial<IPageForItem>[]>
 }

packages/app/src/server/models/page.ts

@@ -41,7 +41,7 @@ export interface PageModel extends Model<PageDocument> {
   [x: string]: any; // for obsolete methods
   createEmptyPagesByPaths(paths: string[]): Promise<void>
   getParentIdAndFillAncestors(path: string): Promise<string | null>
-  findByPathAndViewer(path: string | null, user, userGroups?, useFindOne?): Promise<PageDocument[]>
+  findByPathAndViewer(path: string | null, user, userGroups?, useFindOne?: boolean): Promise<PageDocument[]>
   findTargetAndAncestorsByPathOrId(pathOrId: string): Promise<TargetAndAncestorsResult>
   findChildrenByParentPathOrIdAndViewer(parentPathOrId: string, user, userGroups?): Promise<PageDocument[]>
   findAncestorsChildrenByPathAndViewer(path: string, user, userGroups?): Promise<Record<string, PageDocument[]>>

packages/app/src/server/routes/apiv3/page-listing.ts

@@ -6,6 +6,7 @@ import ErrorV3 from '../../models/vo/error-apiv3';
 import loggerFactory from '../../../utils/logger';
 import Crowi from '../../crowi';
 import { ApiV3Response } from './interfaces/apiv3-response';
+import Page from '~/components/Page';
 
 const logger = loggerFactory('growi:routes:apiv3:page-tree');
 
@@ -41,6 +42,20 @@ export default (crowi: Crowi): Router => {
   const router = express.Router();
 
 
+  router.get('/root', accessTokenParser, loginRequiredStrictly, async(req: AuthorizedRequest, res: ApiV3Response) => {
+    const Page: PageModel = crowi.model('Page');
+
+    let rootPage;
+    try {
+      rootPage = await Page.findByPathAndViewer('/', req.user, null, true);
+    }
+    catch (err) {
+      return res.apiv3Err(new ErrorV3('rootPage not found'));
+    }
+
+    return res.apiv3({ rootPage });
+  });
+
   // eslint-disable-next-line max-len
   router.get('/ancestors-children', accessTokenParser, loginRequiredStrictly, ...validator.pagePathRequired, apiV3FormValidator, async(req: AuthorizedRequest, res: ApiV3Response): Promise<any> => {
     const { path } = req.query;

packages/app/src/stores/page-listing.tsx

@@ -1,9 +1,21 @@
 import useSWR, { SWRResponse } from 'swr';
 
 import { apiv3Get } from '../client/util/apiv3-client';
-import { AncestorsChildrenResult, ChildrenResult, V5MigrationStatus } from '../interfaces/page-listing-results';
+import { AncestorsChildrenResult, ChildrenResult, V5MigrationStatus, RootPageResult } from '../interfaces/page-listing-results';
 
 
+export const useSWRxRootPage = (): SWRResponse<RootPageResult, Error> => {
+  return useSWR(
+    '/page-listing/root',
+    endpoint => apiv3Get(endpoint).then((response) => {
+      return {
+        rootPage: response.data.rootPage,
+      };
+    }),
+    { revalidateOnFocus: false },
+  );
+};
+
 export const useSWRxPageAncestorsChildren = (
     path: string | null,
 ): SWRResponse<AncestorsChildrenResult, Error> => {