overlay: 1.0.0
info:
  title: API Evangelist enhancements for PayPay Open Payment API
  version: 1.0.0
extends: openapi/paypay-opa-openapi-original.json
actions:
- target: $.info
  update:
    x-apievangelist-provider: paypay
    x-apievangelist-auth: HMAC-SHA256 (Authorization hmac OPA); not the Basic scheme declared in the spec
    x-apievangelist-idempotency: client-supplied merchantPaymentId / merchantRefundId
    x-apievangelist-webhooks: transaction-event webhooks (notification_type=Transaction)
    x-apievangelist-request-id: X-REQUEST-ID response header
    x-apievangelist-sandbox: STAGING env against //apigw.sandbox.paypay.ne.jp