<p>To use this plugin, you must register your site with Google, as described in the documentation <a href="{$a->docsurl}">Google OAuth 2.0 setup</a>.</p><p>As part of the registration process, you will need to enter the following URL as 'Authorized Redirect URIs':</p><p>{$a->callbackurl}</p><p>Once registered, you will be provided with a client ID and secret which can be used to configure all Google Drive and Picasa plugins.</p>