Can I connect via REST services with a mobile app I will develop? I'm thinking of developing an e-commerce with Drupal 8 and Drupal Commerce, but I need to know if I can connect via REST services with a mobile app that I would develop too. The app would need to be able to create carts, make orders, payments, and so on.

I have already developed several apps which connect to Drupal 8 and created content, but I need to know if it's possible to create orders, carts, payments, etc.
yes you can exposes entities and other resources as RESTful web API by activating the core RESTful Web Services module 


  /admin/modules