Creating Google AppID & Secret Key to use on Chat+

I am trying to create Google AppID & secret key to use on my Chat+ Login Form, please see screenshot attached, but not sure what to put on "Authorized redirect URIs" field..  Lets say my site is called Boonex.com, what should I put on Redirect URl field ?

Could someone shed some lights please.. Thanks !

Redirect URL should be specified in Rocket.Chat admin panel, the same form where you insert key&secret from Google.

Hi Alex, I did exactly what you mentioned but it did not work..

Here is what I did to fix the issue which is not mentioned anywhere  :))

exp:
This is my Redirect URL on my Rocket.Chat:  http://chat.boonex.com/_oauth/google

But, on google console - I had to add the word close for it to work:
something similar to:  http://chat.boonex.com/_oauth/google?close

Please note, only google OAuth needed the <close> at the end, Twitter or FB worked as is..

Thanks.