permission-node: switch to array for getResources return value

Signed-off-by: MT Lewis <mtlewis@users.noreply.github.com>

plugins/permission-node/src/integration/createPermissionIntegrationRouter.test.ts

@@ -22,10 +22,7 @@ import { createPermissionIntegrationRouter } from './createPermissionIntegration
 const mockGetResources: jest.MockedFunction<
   Parameters<typeof createPermissionIntegrationRouter>[0]['getResources']
 > = jest.fn(async resourceRefs =>
-  resourceRefs.reduce(
-    (acc, resourceRef) => ({ ...acc, [resourceRef]: { id: resourceRef } }),
-    {},
-  ),
+  resourceRefs.map(resourceRef => ({ id: resourceRef })),
 );
 
 const testRule1 = {
@@ -251,7 +248,9 @@ describe('createPermissionIntegrationRouter', () => {
     });
 
     it('returns 200/DENY when resource is not found', async () => {
-      mockGetResources.mockReturnValueOnce(Promise.resolve({}));
+      mockGetResources.mockImplementationOnce(async resourceRefs =>
+        resourceRefs.map(() => undefined),
+      );
 
       const response = await request(app)
         .post('/.well-known/backstage/permissions/apply-conditions')

plugins/permission-node/src/integration/createPermissionIntegrationRouter.ts

@@ -156,7 +156,9 @@ const applyConditions = <TResource>(
 export const createPermissionIntegrationRouter = <TResource>(options: {
   resourceType: string;
   rules: PermissionRule<TResource, any>[];
-  getResources: (resourceRefs: string[]) => Promise<Record<string, TResource>>;
+  getResources: (
+    resourceRefs: string[],
+  ) => Promise<Array<TResource | undefined>>;
 }): express.Router => {
   const { resourceType, rules, getResources } = options;
   const router = Router();
@@ -188,9 +190,15 @@ export const createPermissionIntegrationRouter = <TResource>(options: {
 
       assertValidResourceTypes(body);
 
-      const resources = await getResources(
-        Array.from(new Set(body.map(({ resourceRef }) => resourceRef))),
+      const resourceRefs = Array.from(
+        new Set(body.map(({ resourceRef }) => resourceRef)),
       );
+      const resourceArray = await getResources(resourceRefs);
+      const resources = resourceRefs.reduce((acc, resourceRef, index) => {
+        acc[resourceRef] = resourceArray[index];
+
+        return acc;
+      }, {} as Record<string, TResource | undefined>);
 
       return res.status(200).json(
         body.map(request => ({