Open Payment API

1. Introduction

1.1 Pre-requisite of Merchant Integration

2. Merchant Integration

2.1 URL

2.2 Security Control

2.2.1 Hash Signature

2.2.2 Signature Calculation

2.3 HTTP Methods

2.4 Code Table

2.4.1 Status Code

2.4.2 Payment Status Code

3. Payment APIs

3.1 Add Card

3.1.1 Request

3.1.2 Response

3.2 Remove Card

3.2.1 Request

3.2.2 Response

3.3 Sale

3.3.1 Request

3.3.2 Response

3.4 Pre-Authorization

3.4.1 Request

3.4.2 Response

3.5 Capture PreAuth

3.5.1 Request

3.5.2 Response

3.6 Pre-Auth Cancellation

3.6.1 Request

3.6.2 Response

3.7 Void

3.7.1 Request

3.7.2 Response

3.8 Refund

3.8.1 Request

3.8.2 Response

3.9 Transaction Enquiry

3.9.1 Request

3.9.2 Response

Guide

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Developer

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Open Payment API

3.7 Void

This API is used to cancel a previous successful transaction before it settles through a customer’s credit card or debit card account. All of the transactions with the same order id will be voided.

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