Eine URL in einem HTML-Input bei Änderung automatisch in ein Bit.ly Kurzlink umwandeln. Dieses Snippet nutzt jQuery. Support unter: http://www.fabian-golle.de----Transform a url in a given html-input into a bit.ly shortlink using jQuery.

bitlyAutoShorten.js

/**
 * Auto Shorten URLs in a given text-input
 * @author Fabian Golle <me@fabian-golle.de>
 **/
jQuery(document).ready(function() {
  var yourInput = $('#yourInputField');
  var yourApiLogin = '__INSERT_YOUR_LOGIN_HERE'; // Get your API Credentials here:
  var yourApiKey = '_INSERT_YOUR_API_KEY_HERE';  // https://bitly.com/a/settings/advanced
  
  yourInput.change(function() {
		var theURL = yourInput.val();
			yourInput.fadeTo(0.7);
			jQuery.getJSON(
				"http://api.bitly.com/v3/shorten?callback=?",
				{ 
				    "format": "json",
				    "apiKey": yourApiKey,
				    "login": yourApiLogin,
				    "longUrl": yourInput.val()
				},
				function(response) {
					if ('url' in response.data) {
						yourInput.val(response.data.url);
						yourInput.fadeTo(1.0);
					}
				}
			);
	});
});