API Overview

Click to Pay Developer Guide
- Recent Revisions to This Document

Introduction to Click to Pay

Click to Pay Flow
- Enabling Unified Checkout in the Smartpay Fuse Portal

Server-Side Set Up
- Capture Context

Client-Side Set Up
- Loading the JavaScript Library and Invoking the Accept Function
  - JavaScript Example: Initializing the SDK
  - JavaScript Example: Displaying the Button List
- Adding the Payment Application and Payment Acceptance
  - JavaScript Example: Setting Up with Full Sidebar
  - JavaScript Example: Setting Up with the Embedded Component

Transient Tokens
- Transient Token Format
- Token Verification
- Dual-Branded Cards

Capture Context API
- Features
- Requesting the Capture Context
- Validating the Capture Context

Payment Details API

Payment Credentials API

Unified Checkout Configuration
- Upload Your Encryption Key
  - Generate a Public Private Key Pair
  - Uploading Your Key Pair
- Enable Click to Pay
  - Enabling Click to Pay
- Manage Permissions

Test Your Click to Pay Configuration
- Test Payment Details
- Customer Authentication
  - Set Up Customer Authentication for Visa
  - Authentication Methods

Click to Pay Appendix
- Client Version History
- JSON Web Tokens
- Reason Codes
- Supported Countries for Click to Pay
- Supported Locales

On This Page

`Click to Pay` Developer Guide

This section describes how to use this guide and where to find further information.

Audience and Purpose: This document is written for merchants who want to enable
Click to Pay
so that they can accept payments on their e-commerce page.
Conventions: This statement is used in this document:

IMPORTANT

An Important
statement contains information essential to successfully completing a task or learning a concept.

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