openapi: 3.0.1
info:
  title: Foreign Exchange Rates CTP Checkout API API
  description: The Click to Pay Checkout API enables merchants to initiate and complete checkout transactions using stored Visa credentials, providing consumers with a seamless and secure payment experience.
  version: '1'
servers:
- url: https://sandbox.api.visa.com
  description: Sandbox server
security: []
tags:
- name: CTP Checkout API
  description: The Click to Pay Checkout API enables merchants to initiate and complete checkout transactions using stored Visa credentials, providing consumers with a seamless and secure payment experience.
paths:
  /visasrci/v1/checkout:
    post:
      operationId: initiateCheckout
      summary: Initiate Checkout
      description: Initiates a Click to Pay checkout session for a consumer transaction. This operation creates a checkout context that allows the consumer to select from their stored payment credentials and complete the purchase.
      tags:
      - CTP Checkout API
      requestBody:
        description: Checkout initiation request details
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CheckoutRequest'
      responses:
        '200':
          description: Checkout session initiated successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CheckoutResponse'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: Unauthorized
        '404':
          description: Resource not found
  /visasrci/v1/checkout/{checkoutId}:
    get:
      operationId: getCheckoutStatus
      summary: Get Checkout Status
      description: Retrieves the current status and details of an existing Click to Pay checkout session identified by the checkout ID.
      tags:
      - CTP Checkout API
      parameters:
      - $ref: '#/components/parameters/CheckoutIdParam'
      responses:
        '200':
          description: Checkout status retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CheckoutStatusResponse'
        '401':
          description: Unauthorized
        '404':
          description: Checkout session not found
components:
  parameters:
    CheckoutIdParam:
      name: checkoutId
      in: path
      required: true
      description: Unique identifier for the checkout session
      schema:
        type: string
  schemas:
    CheckoutResponse:
      type: object
      properties:
        checkoutId:
          type: string
          description: Unique identifier for the initiated checkout session
        status:
          type: string
          description: Current status of the checkout session
          enum:
          - INITIATED
          - PENDING
          - COMPLETED
          - EXPIRED
        checkoutUrl:
          type: string
          format: uri
          description: URL to redirect the consumer for checkout completion
    ErrorResponse:
      type: object
      properties:
        errorCode:
          type: string
          description: Machine-readable error code
        message:
          type: string
          description: Human-readable error description
        details:
          type: array
          items:
            type: object
            properties:
              field:
                type: string
                description: Field that caused the error
              message:
                type: string
                description: Detail about the field error
    CheckoutRequest:
      type: object
      required:
      - merchantId
      - amount
      - currency
      properties:
        merchantId:
          type: string
          description: Unique identifier for the merchant initiating checkout
        amount:
          type: number
          format: double
          description: Transaction amount
        currency:
          type: string
          description: ISO 4217 currency code
          pattern: ^[A-Z]{3}$
          example: USD
        consumerIdentity:
          type: string
          description: Consumer email or phone number used to look up stored credentials
        merchantName:
          type: string
          description: Display name of the merchant
        returnUrl:
          type: string
          format: uri
          description: URL to redirect the consumer after checkout completion
    CheckoutStatusResponse:
      type: object
      properties:
        checkoutId:
          type: string
          description: Unique identifier for the checkout session
        status:
          type: string
          description: Current status of the checkout session
          enum:
          - INITIATED
          - PENDING
          - COMPLETED
          - EXPIRED
          - CANCELLED
        transactionId:
          type: string
          description: Transaction identifier assigned after successful payment
        paymentToken:
          type: string
          description: Tokenized payment credential used for the transaction
x-tagGroups:
- name: API Reference
  tags:
  - Foreign Exchange Rates API