get https://global-api.au.edge.zip.co/merchant/checkouts/
Retrieves the details of a checkout that has previously been created. Supply the unique checkout ID that was returned from your previous request, and Zip will return the corresponding checkout information.
- Ensure the URL includes the desired environment ("prod" for production or "sand" for sandbox).
- Call this method on your redirect_uri page, when charging or creating a token if you don’t have server-side session handling to get full cart, customer details, and metadata.
