Support for Google serviceAccount authentication for Request node

The idea is:

To add support for Google’s serviceAccount’s authentication for the generic Request node.

My use case:

I’m using Google Cloud Functions, which I like to call using the generic Request node. Right now it’s not possible to authenticate using the Google’s serviceAccount authentication.

I think it would be beneficial to add this because:

It allows only authenticated users to call Google Functions

Any resources to support this?

Are you willing to work on this?

Happy to be a tester