Overview

SAESUN is e-commerce payment processing gateway for the merchants. The target of SAESUN  is to make the merchant’s online e-commerce business up and running by applying simple integration methods.

This document is intended for use by programmers responsible for the merchant payment gateway interface. It describes the interface that merchant system use to process the e-commerce transactions using standard form posting method. This interface supports various integration methods as Transport method, Hosted payment page method, Direct payment page method and 3D secure processing method.

Logical Components

SAESUN’s payment gateway exchanges data between merchant and gateway in the form of Request and Response.

The following diagram explains the components involved in the process.

Merchant integrated with Gateway always initiates the transaction by sending request to gateway by HTTPS POST method. Gateway replies with the response over the same socket to merchant. Response time depend on the acquiring bank/ acquiring gateway processing with the interbank networks.

We recommend to timeout the request connection for 60 seconds.

Request/Response process is identified by the set of JSON message fields which provides the transaction interface between the merchant and the SAESUN’s payment gateway. Each integration URL will be provided with the integration document to the merchant.