How to get Firebase Project Name or ID from Cloud Function

Question

I am using Cloud Functions and want to get the project name from within one of my Javascript server files. I know that value is stored in the .firebaserc, but I don't think that file is available on the server, right? I want to do something like this:

const functions = require('firebase-functions');
const admin = require('firebase-admin');

admin.getProjectName();  // or getProjectID()

or

functions.getProjectName(); 

Solution 1

Thank you @Frank. The answer is: process.env.GCLOUD_PROJECT.
I'm not sure where the variable process comes from, but this does work to get the project name.

Solution 2

Firebase admin SDK has access to that information for you.

const admin = require('firebase-admin');
const projectId = admin.instanceId().app.options.projectId

Solution 3

This worked for me. (node 10)

const FIREBASE_CONFIG = process.env.FIREBASE_CONFIG && JSON.parse(process.env.FIREBASE_CONFIG);
const projectId = FIREBASE_CONFIG.projectId;

Solution 4

try this :

const projectId = admin.instanceId().app['options_'].credential.projectId

Solution 5

For cloud functions running on newer versions of Node:

import firestore from "@google-cloud/firestore";

const client = new firestore.v1.FirestoreAdminClient();
const projectId = await client.getProjectId();

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Comments

[okhobb]

process is a global object in node. See: nodejs.org/api/globals.html#globals_process

[okhobb]

functions.config().firebase.projectId is not defined for me. I'm only seeing fields: databaseURL, storageBucket, apiKey, authDomain, and credential on the functions.config().firebase object.

[Pier]

functions.config() returns environment configurations set by the user, which is why you are getting downvoted.

[Crazometer]

This may not exist depending on how admin was initialized

[Joseph Lust]

Doesn't appear to work on the GCF Node 10 runtime. Don't see it when dumping process.env

[torno]

Might be better to use process.env.GCP_PROJECT now instead since GCLOUD_PROJECT has been marked as deprecated here: cloud.google.com/functions/docs/…

[phatmann]

Neither GCLOUD_PROJECT nor GCP_PROJECT are available in Node 10 runtime.

[Ben Winding]

GCLOUD_PROJECT seems to work now, it was fixed in the node10 runtime too github.com/firebase/firebase-functions/issues/437

[Leblanc Meneses]

admin.instanceId() is deprecated firebase.google.com/docs/reference/admin/node/…

[GorvGoyl]

works as of July 2022