Allow endpoint to be configured for sqs event publisher

Signed-off-by: Scott Guymer <scott.guymer@philips.com>

.changeset/cold-laws-turn.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-events-backend-module-aws-sqs': minor
+---
+
+Allow endpoint configuration for sqs, enabling use of localstack for testing.

plugins/events-backend-module-aws-sqs/src/publisher/AwsSqsConsumingEventPublisher.ts

@@ -68,7 +68,11 @@ export class AwsSqsConsumingEventPublisher implements EventPublisher {
       VisibilityTimeout: config.visibilityTimeout?.as('seconds'),
       WaitTimeSeconds: config.pollingWaitTime.as('seconds'),
     };
-    this.sqs = new SQSClient({ region: config.region });
+
+    this.sqs = new SQSClient({
+      region: config.region,
+      endpoint: config.endpoint,
+    });
     this.queueUrl = config.queueUrl;
 
     this.taskTimeoutSeconds = config.timeout.as('seconds');

plugins/events-backend-module-aws-sqs/src/publisher/config.ts

@@ -31,6 +31,7 @@ export interface AwsSqsEventSourceConfig {
   topic: string;
   visibilityTimeout?: Duration;
   waitTimeAfterEmptyReceive: Duration;
+  endpoint?: string;
 }
 
 // TODO(pjungermann): validation could be improved similar to `convertToHumanDuration` at @backstage/backend-tasks