This tutorial teaches you how to import email addresses from your Gmail Accounts Contact List through the Google Open Authorization Protocol and send an invitation to all the imported email addresses using Ajax, Jquery and PHP.
To use this system, you need to get your OAuth Consumer Key and OAuth Consumer Secret from Here
There are three basic steps required to get your OAuth Consumer Key and OAuth Consumer Secret from the Google website.
(1) Click Here
to register or add your domain.
(2) Verify your domain.
(3) Provide domain information.
All the information you need to carry out the above steps or get those information are given at the above link. Sample screen shots are shown below.
To install the system on your server, simply download the zipped folder containing the required files, extract it to your system, open the file named README.txt and follow the three steps instructions given in that file.
To see the system in action, please click on the demo button below and download the script if you like what you see.