add error handler middleware in the plugin router

Signed-off-by: Fredrik Adelöw <freben@gmail.com>

plugins/notifications-backend/dev/index.ts

@@ -26,7 +26,6 @@ import {
 } from '@backstage/plugin-notifications-common';
 import express, { Response } from 'express';
 import Router from 'express-promise-router';
-import { MiddlewareFactory } from '@backstage/backend-defaults/rootHttpRouter';
 
 const randomSeverity = (): NotificationSeverity => {
   return notificationSeverities[
@@ -77,12 +76,8 @@ const notificationsDebug = createBackendPlugin({
       deps: {
         notifications: notificationService,
         httpRouter: coreServices.httpRouter,
-        config: coreServices.rootConfig,
-        logger: coreServices.logger,
       },
-      async init({ notifications, httpRouter, config, logger }) {
-        const middleware = MiddlewareFactory.create({ config, logger });
-
+      async init({ notifications, httpRouter }) {
         const router = Router();
         router.use(express.json());
         router.post('/', async (_, res: Response<unknown>) => {
@@ -100,7 +95,6 @@ const notificationsDebug = createBackendPlugin({
           });
           res.status(200).send({ status: 'ok' });
         });
-        router.use(middleware.error());
 
         httpRouter.use(router);
         httpRouter.addAuthPolicy({