I have created a project and enabled the Calendar API (see image) but I can't find the client ID or secret, or work out how to link these to the Google Calendar that I have just created.

Ok so I worked out how to get the Client ID and Secret but when I load the Calendar I get "400. That’s an error. Error: redirect_uri_mismatch" What do I use for the URI?

I found the documentation and set the URI to "www.xxxx.com/index.php?option=com_bookin...e.authenticate"

But I get the same error.

The response details are:
Request Details
scope=www.googleapis.com/auth/calendar
response_type=code
access_type=offline
redirect_uri=www.xxxx.com/administrator/index.php?opt...=google.authenticate
approval_prompt=force
client_id=yyyy

The only issue that I can see is that the error page says the following: The redirect URI in the request: www.xxxx.com/administrator/index.php?opt...=google.authenticate did not match a registered redirect URI. But I have not put the amp; in anywhere.

The returned URL is accounts.google.com/o/oauth2/auth?respon...pproval_prompt=force

Not sure what happened but I came back to it and it worked.. maybe it was a cache issue. The only question I now have is that I don't want all of my calenders linked.. I know I can just ignore them but would prefer them not there.