CreateCustomToken() requires a certificate with "private_key" about firebase-functions

[mspado]

I don't think the issue should be closed. It's not fixed and is still breaking things.

It quietly broke a batch process when we switched to admin.initializeApp(functions.config().firebase); instead of a manual toggle.

[manishtpatel]

@laurenzlong, reading 5.9.1 release note got me excited, thought this issue is resolved. Still not working with 5.9.1

5.9.1 release note
The admin.initializeApp() method can now be invoked without a credential option. This prompts the SDK to use Google Application Default Credentials.

What am i missing? What is this Google Application Default Credentials?

[jwngr]

In the future, please indicate when you cross post. I answered this one Stack Overflow. We hope to improve this situation in the future.

[laurenzlong]

Please file in https://github.com/firebase/firebase-admin-node if you would like to see createCustomToken() supported with default credentials.

[laurenzlong]

Within the functions runtime, admin.initializeApp(functions.config().firebase); is still the right way to initialize an admin app, even with 5.9.1 release. And functions.config().firebase is already using Application Default Credentials (this is a credential that is available in a Google-managed server, such as that of Cloud Functions, so that you don't have to supply a service account key).

tl;dr: The 5.9.1 release doesn't change the situation, if you would like to see createCustomToken() supported with the default credentials already available in the functions runtime, please file a request in https://github.com/firebase/firebase-admin-node

[sbnon]

admin.initializeApp(functions.config().firebase) appears to have been removed in Firebase Functions v1.0 (https://firebase.google.com/docs/functions/beta-v1-diff).

How do you now provide a custom certificate to Firebase with the v1.0 functions API?

[laurenzlong]

It is still not supported, please file a request in https://github.com/firebase/firebase-admin-node if you would like it to happen.

[camstuart]

+1

The docs I'm reading say that if I am running in a cloud function all I need do is:
admin.initializeApp(functions.config().firebase);

But I get the same error about the private key missing.

I am following the docs here:
https://firebase.google.com/docs/admin/setup