Adding LiveFeed function for a nopcommerce based website - repost

I would like to implement a live feed functionality for a NopCommerce based website. 1. need a fav icon on each product, only registered user can fav, otherwise, redirect them to login 2. Need a feed icon showing at real time the following events: user favorites a product user purchases a product user pins a product. The icon only need to show the count of the feed starting from using accessing the web. i.e when I access the website, i will see the number start increasing from 0. 3. There is a detailed feed page including the page details 4.(optional) need to allow user to upload a product(price, picture,) and will show once its approved by admin. Performance is very important. 2. 3, 4, should utilize node framewok, open to other suggestions