Redux Shopping Cart

This is a simple app to try Redux.

Features

• the badge of the counter must indicate the total number of items currently in cart
• the total amount must be correct
• the buttons "add"/"remove" must be functional
• all the buttons must be disabled when it's logical for them to be so
• enable the "in stock items" filter
• the app must fill it's initial state from the mocked API
• the cart must be sent via the mocked API
• errors must be handled and displayed to the user