Use stringifyerror

Signed-off-by: Damon Kaswell <damon.kaswell1@hp.com>

plugins/incremental-ingestion-backend/package.json

@@ -33,6 +33,7 @@
   },
   "dependencies": {
     "@backstage/backend-common": "workspace:^",
+    "@backstage/errors": "workspace:^",
     "@backstage/backend-plugin-api": "workspace:^",
     "@backstage/backend-tasks": "workspace:^",
     "@backstage/catalog-model": "workspace:^",

plugins/incremental-ingestion-backend/src/engine/IncrementalIngestionEngine.ts

@@ -26,6 +26,7 @@ import type { AbortSignal } from 'node-abort-controller';
 import { performance } from 'perf_hooks';
 import { Duration, DurationObjectUnits } from 'luxon';
 import { v4 } from 'uuid';
+import { stringifyError } from '@backstage/errors';
 
 export class IncrementalIngestionEngine implements IterationEngine {
   restLength: Duration;
@@ -118,10 +119,7 @@ export class IncrementalIngestionEngine implements IterationEngine {
               const backoffLength = currentBackoff.as('milliseconds');
               this.options.logger.error(error);
 
-              const truncatedError =
-                typeof error === 'string'
-                  ? error.substring(0, 700)
-                  : `${error}`;
+              const truncatedError = stringifyError(error).substring(0, 700);
               this.options.logger.error(
                 `incremental-engine: Ingestion '${ingestionId}' threw an error during ingestion burst. Ingestion will backoff for ${currentBackoff.toHuman()} (${truncatedError})`,
               );