From 39934f43b68bd6da3144d7b85a6636758ce2845a Mon Sep 17 00:00:00 2001
From: Patrik Oldsberg <poldsberg@gmail.com>
Date: Thu, 3 Sep 2020 15:11:17 +0200
Subject: [PATCH] auth-backend: add not found error if provider is not found

---
 plugins/auth-backend/src/service/router.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/plugins/auth-backend/src/service/router.ts b/plugins/auth-backend/src/service/router.ts
index b5451cad6c..19a74d47c5 100644
--- a/plugins/auth-backend/src/service/router.ts
+++ b/plugins/auth-backend/src/service/router.ts
@@ -22,6 +22,7 @@ import { Logger } from 'winston';
 import { createAuthProviderRouter } from '../providers';
 import { Config } from '@backstage/config';
 import { DatabaseKeyStore, TokenFactory, createOidcRouter } from '../identity';
+import { NotFoundError } from '@backstage/backend-common';
 
 export interface RouterOptions {
   logger: Logger;
@@ -88,5 +89,10 @@ export async function createRouter(
     }),
   );
 
+  router.use('/:provider/', req => {
+    const { provider } = req.params;
+    throw new NotFoundError(`No auth provider registered for '${provider}'`);
+  });
+
   return router;
 }