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...

C# 9 Record: Compiler Created ToString() Code can Lead to Stack Overflow and Worse

Peter Huber SG If a record declaration creates a cyclical reference, the compiler generated ToString() causes a stack overflow.When a record declaration has a property referencing itself, a reference cycle is...

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...

I told you what to build in your POS

Three years ago, when we were still living a more or less normal life, I published an article on LinkedIn, where I shared some of my ideas for new features in POS systems for restaurants.I had a chance to look...

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