Duplicate Transaction

PayGuardian Cloud Integration

A little history Over a decade ago, when I was developing my POS software, I discovered T-Gate. A gateway for both card-not-present and not-present transactions. The time was before the liability shift of...

DLL or REST API

Over the years, I have participated in many development projects where we could use a DLL (Dynamic Link Library) or use an API. This article will explain the differences between DLL and API, the pros and cons...

Sound Payments Quantum Integration

A couple of days ago, I finally finished an integration to Sound Payments Quantum API. Over the years, I have done many integrations to gateways, payment devices, and services, but this one was very different...

Device Options for Semi-Integrated Systems

Since the implementation of the liability shift by payment processors, the Semi-integrated systems have gained popularity.Before I continue, I want to make sure that you know what the Liability Shift and Semi...

MVC Design Pattern with a PHP example

Model-View-Controller is the most widely used design pattern in programming languages such as Java, PHP, C, C++, and C#.In an object-oriented programming paradigm, MVC relates the user interface to the...

How to design an API

In my last three articles, I discussed APIs, JSON, and REST.In this article, I am going to show you how to design an API with best practices. Define and Design The first step in building an API is to define...

Category - Payment API

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