force user to login while add new product into their shopping cart while using ajax cart plugin

while using ajax cart plugin, we have strong requirement to force user to login or register before add items to cart. how to do this with using ajax cart plugin

The bast way to provider configurations of ajaxcart admin panel.

Hi,

You can use the ACL (Access Control List) for this. 

Go to Configuration -> Access Control List and on the bottom of the grid you will see an option named Public store. Enable shopping cart. Disable it for Guests and the customers that are not logged in won't be able to access the shopping cart and won't have the option to add products to it.

Hope this helps!