SDK Archives - IT Jungle

Modernizing IBM i Apps with Microservices

November 7, 2018 Alex Woodie

Application modernization means different things to different people. For some, it could be turning a 5250 screen into a Web or mobile interface, or replacing database access with SQL. But for others in the IBM i community, including the vendor OpenLegacy, modernization refers to exposing existing business logic as APIs through a microservices architecture.

Microservices refers to a software development technique whereby applications are broken down into multiple self-contained components and served via APIs in a loosely coupled but coordinated manner. The main advantage of this approach is each microservice is built independently of others, which can boost productivity and …
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A Profound Replacement For My VisualAge For RPG Applications

December 6, 2017 Dan Devoe

In January 2016, I wrote an IT Jungle article outlining how my company, Boston Warehouse Trading Corporation, prolonged the life of our VisualAge for RPG (VaRPG) applications by getting them to work on 64-bit versions of Windows. And I’m pleased to say, that as of Windows 10 Creator’s Edition, they still work. However, the applications are on life support, and we needed to act sooner rather than later to begin the process of replacing the apps whose SDK and support died a premature and painful death.

We have researched a few application modernization solutions. But it seemed that, when all …
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