<h3>
Using the service
</h3>

Below is the service URL



<pre class="brush: plain">
https://www.googleapis.com/urlshortener/v1/url?key=YOUR_API_KEY"
</pre>


Use POST method to this URL to shorten a URL. Content-type of the request should be 

"application/json" and send/post the request data as JSON string.



<pre class="brush: js">
{"longUrl": "https://kahimyang.com"}
</pre>



If the request is successful, the response should look like this:



<pre class="brush: js">
{
 "kind": "urlshortener#url",
 "id": "http://goo.gl/Akt50",
 "longUrl": "https://kahimyang.com"
}
</pre>


<h3>
JSF 
</h3>


The JSF backing bean should have a method like below. 



<pre class="brush: java;highlight:[20,54]">

String longUrl; // value set from other parts of code;
String shortUrl=null; // 

public String getUrlShortener() {

 if (shortUrl != null) {
 return shortUrl;
 }

 final String G="https://www.googleapis.com/urlshortener/"
 + "v1/url?key=YOUR_API_KEY"

 try {
 URL url = new URL(G);

 HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();
 urlConn.addRequestProperty("User-Agent", "Mozilla");
 urlConn.addRequestProperty("Content-Type", "application/json"); 
 urlConn.setRequestMethod("POST");
 String data = "{\"longUrl\" : \"" + longUrl + "\"}";
 urlConn.addRequestProperty("Content-Length", "" + data.length());
 urlConn.setDoOutput(true);
 urlConn.setDoInput(true);

 //Send the JSON text
 DataOutputStream requestData = new DataOutputStream(
 urlConn.getOutputStream());
 requestData.writeBytes(data);
 requestData.flush();
 requestData.close();

 //Get response
 InputStream input = urlConn.getInputStream();
 BufferedReader br = new BufferedReader(new InputStreamReader(input));
 String line;
 StringBuilder response = new StringBuilder ();
 while ((line = br.readLine()) != null) {
 response.append(line);
 }

 br.close(); input.close();
 shortUrl = response.toString();

 } catch (IOException e) {
 return longUrl;
 }

 Map&lt;String, String> a = new HashMap();

 try {

 com.google.gson.Gson gs = new com.google.gson.Gson();
 a = gs.fromJson(shortUrl, a.getClass());
 shortUrl = a.get("id");

 } catch (Exception e) {
 } 

 if (shortUrl == null) {
 return longUrl;
 }

 return shortUrl;

}
</pre>



Below is how we used the shortened URL in one the tweet buttons in one of the pages in this site.




<pre class="brush: xml; highlight:4">
&lt;a href="http://twitter.com/share" 
 class="twitter-share-button"
 data-count="horizontal" data-via="kahimyang" 
 data-url="#{evNewsBlogsBean.urlShortener}">Tweet
&lt;/a>

&lt;script type="text/javascript" 
 src="http://platform.twitter.com/widgets.js">
&lt;/script>
</pre>




That's it. Good luck.

How to use Google URL Shortener service in JSF pages