# Mini cart widget

You can create a Mini Cart widget using JavaScript that runs on your website. The widget displays the contents of the cart to the shopper. You can implement the Mini Cart widget with a public API key or a confidential API key. The Mini Cart widget initiates the Shopper API requests directly from a web browser using JSONP as the cross-domain solution. The Shopper APIs also support CORS.

The Mini Cart widget uses the following common Shopper APIs:

* `GET /oauth20/token`
* `POST v1/shoppers/me/carts/active?productId={​pid}​&quantity={​qty}`​ 
* `POST v1/shoppers/me/carts/active/line-items?productId={​pid}​&quantity={​qty}`
* `GET v1/shoppers/me/carts/active`
* `POST v1/shoppers/me/carts/active/web-checkout`