Create "BazaarOverviewCard" that can be added to Backstage homepage.

Change-Id: I6e2565360cb3f7af27f60a0336cd87a75b3018c3
Signed-off-by: Frida Jacobsson <fridaja@axis.com>
Signed-off-by: Frida Jacobsson <fridahelenajacobsson@gmail.com>

plugins/bazaar-backend/package.json

@@ -25,6 +25,7 @@
     "@backstage/backend-common": "workspace:^",
     "@backstage/backend-test-utils": "workspace:^",
     "@backstage/config": "workspace:^",
+    "@backstage/errors": "workspace:^",
     "@backstage/plugin-auth-node": "workspace:^",
     "@types/express": "^4.17.6",
     "express": "^4.17.1",

plugins/bazaar-backend/src/service/DatabaseHandler.ts

@@ -175,14 +175,22 @@ export class DatabaseHandler {
     return await this.client('metadata').where({ id: id }).del();
   }
 
-  async getProjects() {
+  async getProjects(limit?: number, order?: string) {
     const coalesce = this.client.raw(
       'coalesce(count(members.item_id), 0) as members_count',
     );
-
-    return await this.client('metadata')
+    let get = this.client('metadata')
       .select([...this.columns, coalesce])
-      .groupBy(this.columns)
-      .leftJoin('members', 'metadata.id', '=', 'members.item_id');
+      .groupBy(this.columns);
+    if (limit) {
+      get = get.limit(limit);
+    }
+    if (order === 'latest') {
+      get = get.orderByRaw('id desc');
+    }
+    if (order === 'random') {
+      get = get.orderByRaw('RANDOM()');
+    }
+    return await get.leftJoin('members', 'metadata.id', '=', 'members.item_id');
   }
 }

plugins/bazaar-backend/src/service/router.ts

@@ -92,8 +92,14 @@ export async function createRouter(
     response.json({ status: 'ok', data: data });
   });
 
-  router.get('/projects', async (_, response) => {
-    const data = await dbHandler.getProjects();
+  router.get('/projects', async (request, response) => {
+    const limit = request.query.limit?.toString();
+    const order = request.query.order?.toString();
+
+    const data = await dbHandler.getProjects(
+      limit ? parseInt(limit, 10) : undefined,
+      order,
+    );
 
     response.json({ status: 'ok', data: data });
   });