Create Google App

In this step we need google client id and secret that way we can get information of other user. so if you don’t have google app account then you can create from here : Google Developers Console. you can find bellow screen :

Now you have to click on Credentials and choose first option oAuth and click Create new Client ID button. now you can see following slide:

Set Authorized redirect URL: http://yourdomainname.com/googleCallback

After create account you can copy client id and secret.Now you have to set Client ID and Secret in admin