The IKO documentation is robust. A single web page, that consists of about 50 actual pages of documentation. For beginners that can be a bit overwhelming. As the saying goes: how do you eat an elephant? One bite at a time. Let's start with the first bite: helm.

What is Helm?

Helm is to Kubernetes what the InterSystems Package Manager (IPM, formerly ObjectScript Package Manager - ZPM) is to IRIS.

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Hi folks!

We have a bunch of templates on OEX that provide a handy foundation for building a particular application with IRIS. And the basic principle of each and every template is that we take vanilla IRIS images, load code, and files into the image using Dockerfile, and create a new docker image as a solution. And then we develop running this image and rebuilding it when returning to development.

Some developers ask me why we need to build the docker image to work with the code. Indeed, if at the end of the day I need to develop a ZPM package and not a docker image why don't run the vanilla image and load the code and everything in it?

The problem I have with the building image approach is that often I can wait a lot to build an image and it fails on some Objectscript problem in the source that I cannot fix as the image is not building. and

Any thoughts? How do you develop with docker?

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A new release of ZPM has been published 0.4.0

New in this release

  • Added support for Deployed packages, publishing, and installation
  • Support for multiple registry servers, e.g. public community registry, private corporate, and so on, including Python embedded code
  • Ability to show all versions and package origin in search
  • Fixed issue for packages with preload code
  • The expanded limit for the length of arguments in Invoke

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The pandemic that struck the world in 2020 made everyone follow the news and the numbers that involve the COVID-19.

Why don’t you take that opportunity to create something simple and pleasant, to follow the number of vaccinations worldwide?

To face this challenge, I'm using the data provided by Our World in Data - Research and data to make progress against the world’s largest problems.

They have a dedicated repository on Github with the data of COVID-19, and I took the vaccination data to help me with my tracker.

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I'm trying to setup a REST server with CORS support. I have created a class that handles a specific part of the service (printer control). This class I have referenced in my main REST class by adding <Map Prefix="/print" Forward="myClass.PrintAPI" />

My main class does have its own <Route>s and handles CORS requests perfectly. But in my subclass OnHandleCorsRequest() is only run when requesting from same origin and never run when making a CORS request. I have set Parameter HandleCorsRequest = "true" in both my main REST class and the subclass.

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My VS Code plugin "InterSystems Objectscript" upgraded to version 0.8.7 but the server settings no longer visible in extension settings and can no longer connect to our InterSystems server.

What has chnaged and how do we set the server connectio up? I checked the JSON file and it still has the settings as it was before but it is not connecting.

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Question
· Nov 5, 2021
ERROR #9406

I'm trying to send a POST request to my REST API and I'm getting this error and most likely due the lack of experience, I have no idea how to fix this issue:

"error": "ERROR #9406: Unexpected format for value of field, AlertText, using class base mapping",

"id": "JSONImportError",

"params": [

"AlertText",

"class base"

]

Am I missing something from my string definition?

Defined below as:

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Article
· May 18, 2023 2m read
Code Golf: String Rotations

Let's have a round of Code Golf!

String rotation is when you take a word and move some of its letters to the end of the word, so the first letter becomes the second letter, the second letter becomes the third, and so on. Last letter becomes first. Rotation can happen only in one direction →.
Your task is to write a method that will receive two strings. It then must return an integer value of how many times needed to rotate the strings to be equal.
As usual shortest solution wins.

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I'm trying to create a new Record Map but I keep getting a ZEN Exception error. I actually go this to work the very first time I did it and have a record map. But I need to do more.

I'm working on my local machine so I can grab a CSV (or txt in this case as it's pipe delimited) from the local directory. I pick the file I want to use but when I click OK i get a popup and the following error:

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Hello all!

As we ObjectScript developers have been experiencing, preparing an environment to run CI related tasks can be quite the chore.
This is why I have been thinking about how we could improve this workflow and the result of that effort is IRIS-CI.

See how it works here.

Quickstart

1.Download the image from the Docker Hub registry:

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Hi Community!

This week is a voting week for the InterSystems IRIS Native API Programming Contest! We have 8 applications — so you have a set of applications to choose from!

How to vote? This is easy: you will have one vote, and your vote goes either in Experts Nomination or in Community Nomination.

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Hi, Community!

Since this article is an overview of Flask Login, let's begin with Flask Introduction!

What is Flask?

In the realm of web development, Python has emerged as a formidable force, offering its versatility and robustness to create dynamic and scalable applications. For that reason, tools and services compatible with this language are in demand these days. Flask is a lightweight and easy-to-use web framework for Python. It stands out as a lightweight and user-friendly option. Its simplicity and flexibility have made it a popular choice for developers, particularly for creating smaller-scale applications. It is based on the Werkzeug toolkit and provides a simple but powerful API for building web applications.
Unlike its full-stack counterparts, Flask provides a core set of features, focusing on URL routing, template rendering, and request handling. This minimalist approach makes Flask lightweight and easy to learn, allowing developers to build web applications quickly and without the burden of unnecessary complexity.

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Hi all,

I'm trying to use LOAD DATA to insert 11k (11,377) rows of data. LOAD BULK DATA is not available for the version of IRIS I am using.

After calling LOAD DATA it says only 5,500 rows has been inserted. The LOAD DATA docs says any error rows are skipped and a count of skipped rows can be found in %SQL_Diag.Result however there are no results here. There are no errors in the xDBC error log either.

Why have over half the rows been skipped?

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Question
· Sep 2, 2021
Can't use terminal?

New to IRIS. Installed docker container as per instructions. From my system I run:

# docker exec -it iris bash

and then try to start a terminal session, which fails

irisowner@2f54ebfbc52f:~$ irissession IRIS

<NOTOPEN>

How do I successfully start a terminal session?

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Hey Developers,

Please welcome the first session from the InterSystems Virtual Summit 2021:

Introduction to Embedded Python

https://www.youtube.com/embed/Mxhnodm3cvQ
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Today in docs I found this example using NULL:

 WRITE $LISTVALID($LB(NULL)),!

simplified

zzdump $LB(NULL)

and NULL can be case-insensitive:

zzdump $LB(null)

seems the same as just:

zzdump $LB()

But if null variable is defined then list would contain value from variable. Case sensitive in that situation.

Does anyone have any Idea what is this? Is NULL used anywhere besides as a list element?

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Hi Community,

We're pleased to invite you to the online meetup with the winners of the InterSystems Interoperability contest!

Date & Time: Friday, October 29, 2021 – 12:00 EDT

What awaits you at this virtual meetup?

  • Our winners' bios.
  • Short demos on their applications.
  • An open discussion about technologies being used. Q&A. Plans for the next contests.

https://www.youtube.com/embed/P6EefBKHbZY
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After installing IRIS 2023.1 on a live copy of our production machine our REST Service now consumes a CSP Session with every request. The request is handled as expected, but uses one of the 5 CSP Session per license. So after 25 requests, the license is used up. The Grace time always shows 0 and the session stay for very long. (Maybe the 900 Seconds timeout).
On Caché 2018, we had the same settings for the Webapp and there, only a single Session was set for all requests. The Caché request didn't use any cookies.

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