Paystack Refund API

openapi: 3.2.0
info:
  title: Paystack Accept Payments Balance Refund API
  description: Initialize, verify, charge, and manage one-time card, bank, USSD, mobile money, and QR payments. The core API for accepting payments through Paystack across Africa.
  version: 1.0.0
  contact:
    name: Paystack Support
    url: https://support.paystack.com
    email: support@paystack.com
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0.html
servers:
- url: https://api.paystack.co
  description: Base API endpoint
security:
- bearerAuth: []
tags:
- name: Refund
paths:
  /refund:
    post:
      tags:
      - Refund
      summary: Create Refund
      operationId: refund_create
      requestBody:
        content:
          application/x-www-form-urlencoded:
            schema:
              $ref: '#/paths/~1refund/post/requestBody/content/application~1json/schema'
          application/json:
            schema:
              type: object
              required:
              - transaction
              properties:
                transaction:
                  description: Transaction reference or id
                  type: string
                amount:
                  description: "Amount ( in kobo if currency is NGN, pesewas, if currency is GHS, and cents, if currency is ZAR ) to be refunded to the customer. \nAmount cannot be more than the original transaction amount"
                  type: integer
                currency:
                  description: Three-letter ISO currency
                  type: string
                  enum:
                  - NGN
                  - GHS
                  - ZAR
                  - USD
                customer_note:
                  description: Customer reason
                  type: string
                merchant_note:
                  description: Merchant reason
                  type: string
      responses:
        '201':
          $ref: '#/paths/~1plan/get/responses/200'
        '401':
          $ref: '#/paths/~1plan/get/responses/401'
        default:
          description: Server error
    get:
      tags:
      - Refund
      summary: List Refunds
      operationId: refund_list
      parameters:
      - in: query
        name: perPage
        schema:
          type: integer
        description: Number of records to fetch per page
      - in: query
        name: page
        schema:
          type: integer
        description: The section to retrieve
      - in: query
        name: from
        schema:
          type: string
          format: date-time
        description: The start date
      - in: query
        name: to
        schema:
          type: string
          format: date-time
        description: The end date
      responses:
        '200':
          $ref: '#/paths/~1plan/get/responses/200'
        '401':
          $ref: '#/paths/~1plan/get/responses/401'
        '404':
          $ref: '#/paths/~1plan/get/responses/401'
        default:
          description: Server error
  /refund/{id}:
    get:
      tags:
      - Refund
      summary: Fetch Refund
      operationId: refund_fetch
      parameters:
      - name: id
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          $ref: '#/paths/~1plan/get/responses/200'
        '401':
          $ref: '#/paths/~1plan/get/responses/401'
        '404':
          $ref: '#/paths/~1plan/get/responses/401'
        default:
          description: Server error
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer