How can I connect a Google Cloud project as a custom service to ZohoCRM? I need to pull YouTube Analytics data into CRM, but I cannot use the included YouTube service as it does not have the scopes I need. Therefore, I need to create a custom service. 

I know what I need to put into the service creation fields in CRM, but I am trying to find the correct Authorized JavaScript Origins & Authorized Redirect URI to put into the Google Cloud Console. I believe the correct redirect URI would be https://deluge.zoho.com/delugeauth/callback
, but I am not 100% sure. 

To be clear, I am creating a custom service directly in CRM, not in the Zoho API Console. Where can I find the origin URI?

If anyone has any other tips about pulling YouTube data into CRM, please share.