Hi Ashwin,

I am happy that my blog has been helpful for you.

To answer your question, yes, you can use any callback link that you provided in the Google CallBack URL.

The important part here is that you need to redirect the web page to your Electron app. (like this: https://gist.github.com/ak2403/55583ea945b8d0f602bec8e10d812547#file-gistfile1-txt-L9)

Hope this helps you :)