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About This Guide

Digital Accept Overview
- Unified Checkout Integration
- REST APIs

Flex API
- Establish a Payment Session with a Capture Context
  - REST Example: Establishing a Payment Session with a Capture Context
- Validate the JSON Web Token
  - Retrieve the Public Key ID
  - Retrieve the Public Key
  - JAVA Example: Validating the Transient Token
- Populate the JSON Web Token with Customer Information
  - Constructing the JSON Payload
  - Generate a JWE (JSON Web Encryption) Data Object
  - Populate the Token Request

Unified Checkout
- Unified Checkout Flow
  - Enabling Unified Checkout in the Business Center
- Transient Tokens
  - Transient Token Format
  - Token Verification
- Capture Context API
  - Required Fields for Requesting the Capture Context
  - Optional Fields for Requesting the Capture Context
  - REST Example: Requesting the Capture Context
- Payment Details API
  - REST Example: Retrieving Transient Token Payment Details Response
- Unified Checkout Configuration
  - Upload Your Encryption Key
    - Generate a Public Private Key Pair
    - Uploading Your Key Pair
  - Enable Digital Payments
    - Enrolling in Apple Pay
    - Enrolling in Click to Pay
    - Enrolling in Google Pay
  - Manage Permissions
    - Managing Permissions as a Direct Merchant
    - Managing Permissions as a Portfolio Administrator
- Unified Checkout UI
  - Apple Pay UI
  - Click to Pay UI
  - Google Pay UI
  - Manual Payment Entry UI
  - Pay with Bank Account UI
  - Paze UI
- JSON Web Tokens
- Supported Countries for Digital Payments
- Supported Locales

Processing Authorizations with a Transient Token
- Authorization with a Transient Token
  - Required Fields for an Authorization with a Transient Token
  - REST Interactive Example: Authorization with a Transient Token
  - REST Example: Authorization with a Transient Token
- Authorization and Creating TMS Tokens with a Transient Token
  - Required Fields for an Authorization and Creating TMS Tokens with a Transient Token
  - REST Interactive Example: Authorization and Creating TMS Tokens with a Transient Token
  - REST Example: Authorization and Creating TMS Tokens with a Transient Token

VISA Platform Connect: Specifications and Conditions for Resellers/Partners

On This Page

REST API

Generate a Public Private Key Pair

You must generate a public private key pair to upload to the Unified Checkout system. The public key will be uploaded to the Unified Checkout platform and is used to encrypt sensitive information in transit. The private key is used to decrypt the sensitive payment information on your server. Only the private key can properly decrypt the payment information.

IMPORTANT

You must secure your private decryption key. This key must never be exposed to any external systems or it will risk the integrity of the secure channel.

Unified Checkout only accepts keys that meet these requirements:

Only RSA keys are supported. Elliptical curves are not supported.

The minimum accepted RSA key size is 2048 bits.

RSA keys must be in JWK format. More information on JWK format is available here: rfc7517.

The key ID must be a valid UUID.