I am trying to access Firestore using Firebase Admin on Node.js v8.4.0 in a Firebase Cloud Function running locally using firebase functions:shell on Windows 10.
firebase -v 4.2.1
"dependencies": {
"firebase-admin": "^6.0.0",
"firebase-functions": "^2.0.5"
}
After attempting to use firebase admin from my apps code, I attempted to run the quick start example in https://github.com/firebase/functions-samples/blob/master/quickstarts/uppercase-firestore/functions/index.js.
This is the actual code run:
'use strict';
// [START all]
// [START import]
// The Cloud Functions for Firebase SDK to create Cloud Functions and setup triggers.
const functions = require('firebase-functions');
// The Firebase Admin SDK to access the Firebase Realtime Database.
const admin = require('firebase-admin');
admin.initializeApp({})
// [END import]
// [START addMessage]
// Take the text parameter passed to this HTTP endpoint and insert it into the
// Realtime Database under the path /messages/:documentId/original
// [START addMessageTrigger]
exports.addMessage = functions.https.onRequest((req, res) => {
// [END addMessageTrigger]
// Grab the text parameter.
const original = req.query.text;
// [START adminSdkAdd]
// Push the new message into the Realtime Database using the Firebase Admin SDK.
return admin.firestore().collection('messages').add({original: original}).then((writeResult) => {
// Send back a message that we've succesfully written the message
return res.json({result: `Message with ID: ${writeResult.id} added.`});
});
// [END adminSdkAdd]
});
// [END addMessage]
// [START makeUppercase]
// Listens for new messages added to /messages/:documentId/original and creates an
// uppercase version of the message to /messages/:documentId/uppercase
// [START makeUppercaseTrigger]
exports.makeUppercase = functions.firestore.document('/messages/{documentId}')
.onCreate((snap, context) => {
// [END makeUppercaseTrigger]
// [START makeUppercaseBody]
// Grab the current value of what was written to the Realtime Database.
const original = snap.data().original;
console.log('Uppercasing', context.params.documentId, original);
const uppercase = original.toUpperCase();
// You must return a Promise when performing asynchronous tasks inside a Functions such as
// writing to the Firebase Realtime Database.
// Setting an 'uppercase' sibling in the Realtime Database returns a Promise.
return snap.ref.set({uppercase}, {merge: true});
// [END makeUppercaseBody]
});
// [END makeUppercase]
// [END all]
However, I still get the permission denied error.
This is the output I get:
firebase > makeUppercase({original:'alphabets'},{params:{documentId:'mydoc'}})
'Successfully invoked function.'
firebase > info: User function triggered, starting execution
info: Uppercasing mydoc alphabets
info: Function crashed
info: { Error: 7 PERMISSION_DENIED: Missing or insufficient permissions.
at Object.exports.createStatusError (C:\projects\myproject\functions\node_modules\grpc\src\common.js:87:15)
at Object.onReceiveStatus (C:\projects\myproject\functions\node_modules\grpc\src\client_interceptors.js:1188:28)
at InterceptingListener._callNext (C:\projects\myproject\functions\node_modules\grpc\src\client_interceptors.js:564:42)
at InterceptingListener.onReceiveStatus (C:\projects\myproject\functions\node_modules\grpc\src\client_interceptors.js:614:8)
at callback (C:\projects\myproject\functions\node_modules\grpc\src\client_interceptors.js:841:24)
code: 7,
metadata: Metadata { _internal_repr: {} },
details: 'Missing or insufficient permissions.' }
My security rules are completely open but that did not resolve the error.
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write;
}
}
}
I also thought that this might be an authentication issue so I have tried the following to initialize the app:
1
admin.initializeApp()
2
admin.initializeApp(functions.config().firebase);
3
var serviceAccount = require('path/to/serviceAccountKey.json');
admin.initializeApp({
credential: admin.credential.cert(serviceAccount),
databaseURL: 'https://<DATABASE_NAME>.firebaseio.com'
});
The last one with my own credentials file and project configuration. All of these attempts still give me the missing permissions error.
Update: I deployed these functions to the cloud and they seem to be working perfectly but when running locally, I'm still getting a Error:7 Permission Denied.
Update 2:
Set application default credentials using gcloud auth application-default login as per suggestion by @Doug Stevenson. Ensured environment variable GOOGLE_APPLICATION_CREDENTIALS is not set. Attempted the code in 1,2 and 3 above as well as 4 below with no success. Encountered the same error.
4
admin.initializeApp({
credential: admin.credential.applicationDefault(),
databaseURL: "https://myapp-redacted.firebaseio.com"
});
gcloud auth application-default login. Does that help? – Emmer