If you have used Google Reader, then you might have noticed the way Google Reader shows feed items, it loads up few items first when you click on a feed and as you scroll down to view more items, it fetches more items dynamically and adds it to the list.
Many times a requirement arises where we are supposed to expose an API for intended users, who can use these API endpoints to GET/POST data on our servers. But how do we verify that only the intended users are using these API’s and not any hacker or attacker.
You must have seen the drag to share functionality on Mashable that lets visitors share the content on popular social networks intuitively. Just drag one of the images in an article and you’ll be able to share the article on your favorite social network by dropping the dragged image over its icon.