Authorizations
Basic authentication header of the form Basic <encoded-value>, where <encoded-value> is the base64-encoded string username:password.
Body
Unique ID for an order
Time, in seconds, after which this Order will expire
x <= 360060
A unique ID that represents a user or customer. This can be used if you wish to track orders on a per customer basis
Which contains rates for countries/regions in ISO3166-2 format.
If fields here are passed, they will be pre filled in the Checkout