• Guru: Flexible Interfaces

  November 1, 2021 Ted Holt

  The details are murky, it’s been eons ago. Probably the mid-1990’s. I was working on an AS/400 that ran a mixture of System/36 and native applications. I needed to call a program that had been written in the latest version of RPG from both S/36 RPG II and native RPG III (a.k.a. RPG/400) programs. I hope I’m remembering this correctly. It’s been so long.

  The problem I ran into was rooted in a numeric parameter. S/36 programs passed numeric parameters in zoned decimal format, whereas native RPG and CL programs used packed decimal. The called program defined the parameter as …

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• Db2 PTF Group Enhancements Target Web Services, Audit Journal

  October 4, 2021 Alex Woodie

  It is indisputable that the Db2 for i database is the beating heart of the IBM i platform. There were no earthshattering enhancements to this database in the latest batch of Technology Refreshes for IBM i 7.3 and 7.4 that IBM announced and shipped last month. But there were a few items worth mentioning that shipped in the Db2 PTF Group, including new HTTP commands for calling the database via REST and new SQL-based commands for querying the security audit journal.

  The top new Db2 for i feature arguably is the new set of functions for HTTP requests to consume …

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• Fresche Takes On New RPG Development And Modernization With X-Elevate

  September 27, 2021 Timothy Prickett Morgan

  Over the years, Fresche Solutions, the IBM i conglomerate that is focused on development of new applications as well as modernization of existing applications, their interfaces, and their databases, has acquired and built tools that help programmers create Java and PHP programs, or convert RPG applications to Java and PHP. But by its own admission, Fresche did not focus on new RPG application development or the kind of incremental programming that a lot of IBM i shops are doing to gradually modernize their applications, usually through the shift from fixed format RPG to the free form RPG that is similar …

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• Transferring Low Code Benefits Into The IBM i

  September 22, 2021 Eugene King

  As with fashion, there are trends in the IT industry and history tends to repeat itself in several exciting ways.  Development languages come into fashion, run their course, and then become obsolete. Then, they may be revamped with the addition of new criteria and frameworks. IBM i development also follows these same trends.

  The low-code movement is not new but another iteration on traditional programming. Let’s do a brief history review.

  At first, computer programming involved specific machine code associated with a particular processor architecture.  Eventually, the language was slightly abstracted to facilitate second-generation assembler code, which was partially portable …

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• Eradani Drives Simplification with API Tool Update

  September 15, 2021 Alex Woodie

  Eradani has always sought to simplify the application programming interface (API) enablement process as much as possible for its IBM i customers. And with the launch of Eradani Connect version 4.1, which features a new GUI, pre-built templates of APIs, and a catalog for the REST-style Web services created with the tool, the Northern California company is taking the simplification mantra to new levels.

  The world is chock full of Web services. Whether it’s real-time weather data, a shipping services, an ecommerce application, or a tax calculator, somebody somewhere is providing information over the Internet. These external APIs generally are …

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• Modernize Your IBM i Using Other People’s Code

  September 8, 2021 Daniel Magid

  IBM i users are moving their applications to the leading edge quickly by connecting their RPG and COBOL code to the exploding number of publicly available APIs. In just the last few months here at Eradani, we have worked with customers who are providing the latest in shopping experiences by connecting their applications to Shopify, Wix, and Amazon. We have helped customers automate logistics and provide real time shipping information using APIs from UPS, USPS, Project44, Shipengine, and many others. Some of our finance industry companies are using APIs to get vehicle information and property information for loan documents and …

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• Altova Updates Db2 for i Support Across Product Line

  July 14, 2021 Alex Woodie

  IBM i shops that use data and development tools from Altova will be happy to know that the software vendor has added support for the latest release of Db2 for i among several of its tools.

  Altova is a Beverley, Massachusetts, company that develops a series of software tools and utilities for developers. The company is arguably best known as the creator of XMLSpy, an IDE that allows developers to create XML-based Web services using standards like WSDL; it later added support for JSON data and the modern SOAP protocol.

  In 2010, Altova added support for IBM i in MissionKit, …

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• Guru: Web Services, DATA-INTO and DATA-GEN, Part 3

  July 12, 2021 Jon Paris

  In this tip I’m going to discuss some of the options used with DATA-GEN and DATA-INTO to deal with the fact that element names in JSON and XML frequently contain characters that are not legal in RPG names.

  This is important because RPG’s -INTO and -GEN operations rely on names to map elements. So if the document we are processing uses names that are not legal in RPG how can we handle that? As you will see, when dealing with -INTO operations they are quite easily handled. DATA-GEN, on the other hand, presents a different problem and we will get …

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• So You Want To Do Containerized Microservices In the Cloud?

  June 30, 2021 Alex Woodie

  As a modernization consultant working in IBM’s Rochester, Minnesota, lab, Amy Anderson gets to hear from some of the most tech-savvy IBM i shops in the world. Her job requires her to know where shops are now, listen to where they want to go, and chart a path that takes them there. That can sometimes be quite a challenge, especially considering the rapid pace of technological change at the moment.

  “One of the things that we’re seeing now is the whole industry now is focused on modernization,” Anderson said during her session at the recent NAViGATE conference hosted by COMMON …

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• IBM i PTF Guide, Volume 23, Number 14

  April 12, 2021 Doug Bidwell

  Apologies to all in the IBM i community for being late for putting together the IBM i PTF Guide last week. Sometimes real life interferes with business life, as you all know well. So this is a catch up issue of the Guide, with everything back on track with an update to get current coming out in this Wednesday’s issue of The Four Hundred.

  Editor’s Note: It goes without saying that we all owe a big hearty thanks to Doug Bidwell for his tireless efforts over many decades in keeping track of the patches for the firmware, operating …

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