Can I put shopping cart there?

As far as I know, right top corner (near or on the nav bar) is where users typically look for a shopping cart. But here I have my navigation in a sidebar, so is it justified to put the shopping cart where I did? I feel like it would take a lot of space elsewhere.

Or should I maybe squeeze it somewhere in the top bar, where The User and App Name is?

This is a desktop application, just so you know. And it's not going to be a complicated project, so I feel like shopping cart in the sidebar is not such a bad idea.