We have already built a custom checkout experience. We accept credit card data on our form and call our payment processor directly from our frontend to create a card token. We then pass that token to our backend and use that token to charge the card token.
We want to move our e-commerce platform to Shopify. With Shopfiy Plus and APIs can we keep this process for checkout and somehow just nark the Shopify checkout object as payment completed?
I cannot find anywhere in documentation about using API to complete a checkout without using Shopify card vault or Shopify web form.