do-jade

openapi: 3.0.3
info:
  title: Payment Service API for Purchasing Movie Tickets
  version: 1.0.0
  description: |
    This defines a 'Payment Service' used by the 'Backend Server.'
    The service processes payments for created orders and allows checking/cancelling a payment. 
    It follows the steps below specified in the UML Diagram. 
    1) Backend Server posts a payment request.
    2) Payment Service returns a created payment.