Discussion on: Google Calendar integration with NodeJS without OAuth 2.0

First: this article was super helpful and got me 95% of the way to a working solution. So thank you so much for posting it!

Here's what didn't work for me:

When I ran the posted code, I would get this error:

The API returned an error: TypeError: authClient.request is not a function

...which, after googling it, seems like an auth or API version error.

It could be related (or not) to the fact that I am not using a G-Suite account. So for anyone wondering how to make it work for a regular google account, here's how!

What I did is I replaced this:

const client = google.auth.getClient({
  credentials,
  scopes,
})

...with this:

const client = new google.auth.GoogleAuth({
  keyFile: '<CREDENTIALS_FILE>.json',
  scopes,
})

(Source: googleapis.dev/nodejs/googleapis/l...)

So in my case, there was no need to require() the credentials file (as google.auth.GoogleAuth() does that for us), so I removed this line:

const credentials = require('<CREDENTIALS_FILE>.json')

...and I also removed this line:

client.subject = '<SERVICE_ACCOUNT_EMAIL>'

...as the service account email already exists in the credentials file (under the "client_email" key).

So the end-result is even more simple, thanks to google.auth.GoogleAuth().

And it might work for G-Suite accounts too. (So if anyone with a G-Suite account wants to try this, please post here to let us know if this worked for you too.)