post https://paella-sandbox.billie.io/api/v2/checkout-sessions
Purpose:
Creates a session ID that is used to initiate the widget for a dedicated checkout session with a customer.
Preconditions:
- n/a
Success:
- Response Code: HTTP 200
- response body:
id→ session ID for the checkout session
Attention:
- The session has an expiry time of 48 hours.