feat(events)!: migrate HttpPostIngressEventPublisher and eventsPlugin to use EventsService

Signed-off-by: Patrick Jungermann <Patrick.Jungermann@gmail.com>

packages/backend/src/index.ts

@@ -70,6 +70,7 @@ import { PluginEnvironment } from './types';
 import { ServerPermissionClient } from '@backstage/plugin-permission-node';
 import { DefaultIdentityClient } from '@backstage/plugin-auth-node';
 import { DefaultEventBroker } from '@backstage/plugin-events-backend';
+import { DefaultEventsService } from '@backstage/plugin-events-node';
 import { PrometheusExporter } from '@opentelemetry/exporter-prometheus';
 import { MeterProvider } from '@opentelemetry/sdk-metrics';
 import { metrics } from '@opentelemetry/api';
@@ -99,7 +100,11 @@ function makeCreateEnv(config: Config) {
     discovery,
   });
 
-  const eventBroker = new DefaultEventBroker(root.child({ type: 'plugin' }));
+  const eventsService = DefaultEventsService.create({ logger: root });
+  const eventBroker = new DefaultEventBroker(
+    root.child({ type: 'plugin' }),
+    eventsService,
+  );
   const signalService = DefaultSignalService.create({
     eventBroker,
   });
@@ -119,6 +124,7 @@ function makeCreateEnv(config: Config) {
       config,
       reader,
       eventBroker,
+      events: eventsService,
       discovery,
       tokenManager,
       permissions,

packages/backend/src/plugins/events.ts

@@ -14,10 +14,7 @@
  * limitations under the License.
  */
 
-import {
-  EventsBackend,
-  HttpPostIngressEventPublisher,
-} from '@backstage/plugin-events-backend';
+import { HttpPostIngressEventPublisher } from '@backstage/plugin-events-backend';
 import { Router } from 'express';
 import { PluginEnvironment } from '../types';
 
@@ -28,14 +25,10 @@ export default async function createPlugin(
 
   const http = HttpPostIngressEventPublisher.fromConfig({
     config: env.config,
+    events: env.events,
     logger: env.logger,
   });
   http.bind(eventsRouter);
 
-  await new EventsBackend(env.logger)
-    .setEventBroker(env.eventBroker)
-    .addPublishers(http)
-    .start();
-
   return eventsRouter;
 }

packages/backend/src/types.ts

@@ -26,7 +26,7 @@ import {
 import { PluginTaskScheduler } from '@backstage/backend-tasks';
 import { IdentityApi } from '@backstage/plugin-auth-node';
 import { PermissionEvaluator } from '@backstage/plugin-permission-common';
-import { EventBroker } from '@backstage/plugin-events-node';
+import { EventBroker, EventsService } from '@backstage/plugin-events-node';
 import { SignalService } from '@backstage/plugin-signals-node';
 
 export type PluginEnvironment = {
@@ -40,6 +40,10 @@ export type PluginEnvironment = {
   permissions: PermissionEvaluator;
   scheduler: PluginTaskScheduler;
   identity: IdentityApi;
+  /**
+   * @deprecated use `events` instead
+   */
   eventBroker: EventBroker;
+  events: EventsService;
   signalService: SignalService;
 };