Merge pull request #26088 from oskarjiang/fix/use-separate-token-for-cache-sync

techdocs-backend: separate request token for cache sync

.changeset/big-spies-stare.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-techdocs-backend': patch
+---
+
+Dedicated token for techdocs cache sync

plugins/techdocs-backend/src/service/router.ts

@@ -252,10 +252,14 @@ export async function createRouter(
       // However, if caching is enabled, take the opportunity to check and
       // invalidate stale cache entries.
       if (cache) {
+        const { token: techDocsToken } = await auth.getPluginRequestToken({
+          onBehalfOf: await auth.getOwnServiceCredentials(),
+          targetPluginId: 'techdocs',
+        });
         await docsSynchronizer.doCacheSync({
           responseHandler,
           discovery,
-          token,
+          token: techDocsToken,
           entity,
         });
         return;