Update index.js

Author: abeisgoat

firestore/full-text-search/functions/index.js

@@ -1,8 +1,20 @@
-const functions = require("firebase-functions");
-const firestore = require("firebase-functions/lib/providers/firestore");
-const Firestore = require("@google-cloud/firestore");
-
-const algoliasearch = require("algoliasearch");
+/**
+ * Copyright 2017 Google Inc. All Rights Reserved.
+ *
+ * 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.
+ */
+const functions = require('firebase-functions');
+const algoliasearch = require('algoliasearch');
 
 // [START init_algolia]
 // Initialize Algolia, requires installing Algolia dependencies:
@@ -11,25 +23,20 @@ const algoliasearch = require("algoliasearch");
 // App ID and API Key are stored in functions config variables
 const ALGOLIA_ID = functions.config().algolia.app_id;
 const ALGOLIA_ADMIN_KEY = functions.config().algolia.api_key;
+const ALGOLIA_SEARCH_KEY = functions.config().algolia.search_key;
 
-const ALGOLIA_INDEX_NAME = "notes";
+const ALGOLIA_INDEX_NAME = 'notes';
 const client = algoliasearch(ALGOLIA_ID, ALGOLIA_ADMIN_KEY);
 // [END init_algolia]
 
-// Initialize Firestore
-const firestoreOptions = {
-  projectId: process.env.GCLOUD_PROJECT
-};
-const db = new Firestore(firestoreOptions);
-
 // [START update_index_function]
 // Update the search index every time a blog post is written.
-exports.onNoteCreated = firestore.document("notes/{noteId}").onCreate(event => {
+exports.onNoteCreated = functions.firestore.document('notes/{noteId}').onCreate(event => {
   // Get the note document
   const note = event.data.data();
 
-  // Add an "objectID" field which Algolia requires
-  note.objectID = event.params.postId;
+  // Add an 'objectID' field which Algolia requires
+  note.objectID = event.params.noteId;
 
   // Write to the algolia index
   const index = client.initIndex(ALGOLIA_INDEX_NAME);
@@ -38,65 +45,64 @@ exports.onNoteCreated = firestore.document("notes/{noteId}").onCreate(event => {
 // [END update_index_function]
 
 // [START get_firebase_user]
-const admin = require("admin");
+const admin = require('firebase-admin');
+admin.initializeApp(functions.config().firebase);
 
 function getFirebaseUser(req, res, next) {
-  console.log("Check if request is authorized with Firebase ID token");
+  console.log('Check if request is authorized with Firebase ID token');
 
-  if (
-    !req.headers.authorization ||
-    !req.headers.authorization.startsWith("Bearer ")
-  ) {
+  if (!req.headers.authorization
+      || !req.headers.authorization.startsWith('Bearer ')) {
     console.error(
-      "No Firebase ID token was passed as a Bearer token in the Authorization header.",
-      "Make sure you authorize your request by providing the following HTTP header:",
-      "Authorization: Bearer <Firebase ID Token>"
+      'No Firebase ID token was passed as a Bearer token in the Authorization header.',
+      'Make sure you authorize your request by providing the following HTTP header:',
+      'Authorization: Bearer <Firebase ID Token>'
     );
-    res.status(403).send("Unauthorized");
+    res.status(403).send('Unauthorized');
     return;
   }
 
   let idToken;
   if (
     req.headers.authorization &&
-    req.headers.authorization.startsWith("Bearer ")
+    req.headers.authorization.startsWith('Bearer ')
   ) {
-    console.log("Found 'Authorization' header");
-    idToken = req.headers.authorization.split("Bearer ")[1];
+    console.log('Found 'Authorization' header');
+    idToken = req.headers.authorization.split('Bearer ')[1];
   }
 
   admin
     .auth()
     .verifyIdToken(idToken)
     .then(decodedIdToken => {
-      console.log("ID Token correctly decoded", decodedIdToken);
+      console.log('ID Token correctly decoded', decodedIdToken);
       req.user = decodedIdToken;
       next();
     })
     .catch(error => {
-      console.error("Error while verifying Firebase ID token:", error);
-      res.status(403).send("Unauthorized");
+      console.error('Error while verifying Firebase ID token:', error);
+      res.status(403).send('Unauthorized');
     });
 }
 // [END get_firebase_user]
 
 // [START get_algolia_user_token]
 // This complex HTTP function will be created as an ExpressJS app:
 // https://expressjs.com/en/4x/api.html
-const app = require("express")();
+const app = require('express')();
 
 // We'll enable CORS support to allow the function to be invoked
 // from our app client-side.
-app.use(require("cors")({ origin: true }));
+app.use(require('cors')({ origin: true }));
 
-// Then we'll also use a special "getFirebaseUser" middleware which
+// Then we'll also use a special 'getFirebaseUser' middleware which
 // verifies the Authorization header and adds a `user` field to the
 // incoming request:
 // https://gist.github.com/abehaskins/832d6f8665454d0cd99ef08c229afb42
 app.use(getFirebaseUser);
 
 // Add a route handler to the app to generate the secured key 
-app.get("/", (req, res) => {
+app.get('/', (req, res) => {
   // Create the params object as described in the Algolia documentation:
   // https://www.algolia.com/doc/guides/security/api-keys/#generating-api-keys
   const params = {
@@ -109,11 +115,11 @@ app.get("/", (req, res) => {
   // Call the Algolia API to generate a unique key based on our search key
   const key = client.generateSecuredApiKey(ALGOLIA_SEARCH_KEY, params);
 
-  // Then return this key as {key: "...key"}
+  // Then return this key as {key: '...key'}
   res.json({ key });
 });
 
 // Finally, pass our ExpressJS app to Cloud Functions as a function
-// called "getSearchKey";
+// called 'getSearchKey';
 exports.getSearchKey = functions.https.onRequest(app);
 // [END get_algolia_user_token]