title: Stripe create Checkout session only with total price
body: <p>I'm currently working in a (small) project where we want to create a shop but we aren't selling anything yet.
  We are storing our products that we want to sell in our own database.
  However I wanted to implement a feature that simulates the payment of an order and I was recommended to use Stripe for it.
  However as far as I know I can't create a checkout session without providing a list of products stored in my Stripe account?
  So I would need to create all the products in Stripe as well (and have them in my own database too)</p>
  <p>Is there no way to just create a checkout session with a total price and when the payment succeeds I can move on?</p>