Stripe Checkout Session and Line Items

arazzo: 1.0.1
info:
  title: Stripe Checkout Session and Line Items
  summary: Create a hosted Checkout Session, retrieve it, then list its line items.
  description: >-
    The hosted-checkout provisioning pattern. The workflow creates a Checkout
    Session for a price, retrieves the session to obtain its hosted payment URL,
    then lists the line items attached to the session. Every step spells out its
    form-encoded request inline so the flow can be read and executed without
    opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: checkoutApi
  url: ../openapi/stripe-checkout-api-openapi.yml
  type: openapi
workflows:
- workflowId: checkout-session-and-lineitems
  summary: Create a Checkout Session and inspect its line items.
  description: >-
    Creates a hosted Checkout Session for the supplied price and quantity,
    retrieves the session to confirm its URL, then lists the line items on the
    session.
  inputs:
    type: object
    required:
    - price
    - successUrl
    properties:
      price:
        type: string
        description: ID of the price to sell through checkout.
      quantity:
        type: integer
        description: Quantity of the line item (defaults to 1 if omitted).
      mode:
        type: string
        description: Checkout mode (payment, subscription, or setup).
      successUrl:
        type: string
        description: URL to redirect to after a successful checkout.
  steps:
  - stepId: createSession
    description: Create a hosted Checkout Session for the supplied price.
    operationId: postCheckoutSessions
    requestBody:
      contentType: application/x-www-form-urlencoded
      payload:
        mode: $inputs.mode
        success_url: $inputs.successUrl
        line_items:
        - price: $inputs.price
          quantity: $inputs.quantity
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      sessionId: $response.body#/id
      url: $response.body#/url
  - stepId: getSession
    description: Retrieve the session to confirm its hosted URL and status.
    operationId: getCheckoutSessionsSession
    parameters:
    - name: session
      in: path
      value: $steps.createSession.outputs.sessionId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      status: $response.body#/status
      paymentStatus: $response.body#/payment_status
  - stepId: listLineItems
    description: List the line items attached to the checkout session.
    operationId: getCheckoutSessionsSessionLineItems
    parameters:
    - name: session
      in: path
      value: $steps.createSession.outputs.sessionId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      lineItems: $response.body#/data
  outputs:
    sessionId: $steps.createSession.outputs.sessionId
    url: $steps.createSession.outputs.url
    lineItems: $steps.listLineItems.outputs.lineItems