title: Google Wallet Online API
body: <p>After a long research of almost two days I found myself helpless and now putting a question here.</p>
  
  <p>I need to implement Google Wallet into my website. My web app is offering few online services and to use them a user has to pay. I have successfully integrated PayPal into my web app. Google wallet is my second target , what I figure out is to use Instant Buy API but I only need a java code for both server and client side which is not available, then I came across <a href="http://wallet-online-java.googlecode.com/git/doc/index.html?help-doc.html" rel="nofollow">Google Wallet Online API (java)</a>but unable to understand how to use the API.</p>
  
  <p>Again searched a lot for samples of the same but unable to find, any help or reference to any implementation of the above API is appreciated.</p>