Accessing Auth from Firebase Cloud Functions

Question

I am having trouble accessing user information from the Firebase Cloud Functions environment.

What I am trying to do.

const admin = require('firebase-admin') admin.initializeApp() exports.test = functions.https.onRequest(() => { admin.auth().getUser('<user_id>').then(user => { return console.log(user) }).catch(e => { console.error(e) }) })

Now, when I run the test function, I get the following error.

{ code: 'auth/insufficient-permission', message: 'Credential implementation provided to initializeApp() via the "credential" property has insufficient permission to access the requested resource. See https://firebase.google.com/docs/admin/setup for details on how to authenticate this SDK with appropriate permissions.' }, codePrefix: 'auth' }

Now, my question is that if it is possible to use admin.auth().getUser from the cloud functions environment.

David Kamer · Accepted Answer · 2018-12-16 02:56:59Z

You need credentials file which you pass to admin sdk initialize function. Auth related task need this configuration in cloud functions.

Go to you Firebase Console -> Settings -> Project Settings -> Service Accounts -> Generate new private key.

Download the file and include in you code.

P.S: make sure this file is not shared to public in any form (add it to git ignore), since have this file gives full access to you firebase project.

or you can just add Service Account Token Creator to your IAM credentials, firebase functions will automatically be a safe environment
Fail to see how this answers the question. I got this error whilst using a service account.

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