feat(cloudrun): add Express server to invoke sample logic over HTTP

Author: hivanalejandro

run/service-auth/index.js

@@ -0,0 +1,38 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+'use strict';
+
+const express = require('express');
+const {receiveRequestAndParseAuthHeader} = require('./receive');
+
+const app = express();
+
+app.get('/', async (req, res) => {
+  try {
+    const response = await receiveRequestAndParseAuthHeader(req);
+
+    const status = response.includes('Hello') ? 200 : 401;
+    res.status(status).send(response);
+  } catch (e) {
+    res.status(401).send(`Error verifying ID token: ${e.message}`);
+  }
+});
+
+const PORT = process.env.PORT || 8080;
+app.listen(PORT, () => {
+  console.log(`Server is running on port ${PORT}`);
+});
+
+module.exports = app;