Hello Community,

Is there a programmatic method or specific property to differentiate system-defined (/csp/altelier , /api/mgmnt and so on)  or user-defined web applications in IRIS?

Thanks!

Hey Community,

We're excited to invite you to the next InterSystems UKI Tech Talk webinar: 

👉The Future of Healthcare Integration with Health Connect & InterSystems

⏱ Date & Time: Thursday, July 3, 2025 10:30-11:30 UK

Speakers:
👨‍🏫 @Mark Massias, Senior Sales Engineer, InterSystems
👨‍🏫 Mike Fitzgerald. Head of Customer Solutions, ReStart

I am writing this post primarily to gather an informal consensus on how developers are using Python in conjunction with IRIS, so please respond to the poll at the end of this article! In the body of the article, I'll give some background on each choice provided, as well as the advantages for each, but feel free to skim over it and just respond to the poll.

As most of you are probably aware, Python is currently the most popular programming language among developers around the world - and for good reason.

Hi fellow developers!

Curious if you guys use CreatedAt and LastUpdated properties in your classes?

Created to stamp when the record was created and LastUpdated when it was last updated. Where it can be useful - almost everywhere )) I find it convenient in records sorting (e.g. by creation or last update), in sync (with other systems), and so on, for better analytics.

Do you use it all the time for all the classes?

If don't, why not? What do you use instead?

What property type do you use - %TimeStamp? %DateTime?

What is the best practice to have CreatedAt filled automatically during creation and LastUpdated on every successful save (guess it could be in %OnSave)?

Please share your experience /thoughts?

The below code is not working. its unable retrieve Record count and merge files

Class Util

{

ClassMethod zPyRecordCount(inputfile) As %Integer [ Language = python ]

{

    import pandas as pd

    import iris

    import io

    try:

        df = pd.read_csv(inputfile, sep='|')

        recordcount=len(df.index)

        sys.stdout.write(len(df.index))

        return recordcount

    except Exception as e:

        return 0

}

ClassMethod zPymergefiles(file1, file2, outputfilename) As %Boolean [ Language = python ]

{

    import pandas as pd

    import iris

    import io

    try:

        dataframe1=pd.

Hi noble devs!

Just building a simple frontend->JSON->IRIS backend story, and figured that IRIS while importing via %JSON.Adaptor wants JSON fields to match property names, meaning even should match the case. Like:

{ name: "John", 

surname: "Doe"}

will have issues while saving the dynamic object to a class Sample.Person with:

Class Sample.Person Extends (%Persistent, %JSON.Adaptor)

{

Property Name: %Sting;
Property Surname: %String;
}

As soon as the case is not the same... 

Is there any setting to fix

Thank you community for translating an earlier article into Portuguese.
Am returning the favor with a new release of Pattern Match Workbench demo app.

Added support for Portuguese.

The labels, buttons, feedback messages and help-text for user interface are updated.

Pattern Descriptions can be requested for the new language.

The single AI Model for transforming user prompt into Pattern match code was fully retrained.

Values to Pattern Code Model also retrained

The separate AI model for generating Pattern match code from a sample list of values has been retrained.

I was wondering what best practice was for using macros in Embedded Python, i.e. iris.execute('$$$MACRO()') or something else. Does anyone have insight into this?

Hello Community,

When handling a %CSP.REST API response for a custom endpoint, how can I capture or access the response content before it is written to the output buffer and sent through the Web Gateway to the UI?

In manually created REST services (for example, with a route like:<Route Url="/test" Method="POST" Call="User.Sample:Test" Cors="true"/> ),
the response is typically written from within any class method in the execution flow.

Is there a way to intercept or log the response content before it is sent to the client?

Thanks!

I have notified that on several servers the IRISTEMP database is reported as only a few GB in size while on the disk where it's located, the IRIS.DAT file is much bigger (eg: 3GB reported in Portal (including free space) while file on the disk file is 121GB). The last modification date of IRIS.DAT is recent so I'm not looking into a location no more in use.

Is there an explanation for that difference in size ? 

I know temporary databases are special in a way they are not always stored on the disk, here is what InterSystems says about it :

Changes to temporary globals are not written to disk.

I have a database that is 2TB in size (from a LIVE system).

I would like to defragment it but I have some questions. I took a look at official documentation but it does not help.

• Is is possible to get a measurement about how much database is fragmented ? (eg: a percentage). Most operating systems are able to give a an indication about how much a filesystem is fragmented before any operation.
• The database is on a LIVE server, the IRIS service is restarted every night (around 1AM). Because of that I can't run defragment continuously. I don't think it will be able to complete under 24 hours.

Hi Guys,

I'm trying to use %Net.WebSocket.Client to collect data from a sever,

and part of that I needed to implement Two classes (SX3.Production.HTTP.AdvCredenials  & SX3.Production.HTTP.AdvListener) as below for the purpose of Credentials & EventListener properties,   

Class SX3.Production.HTTP.AdvCredenials Extends %Net.WebSocket.ICredentials
{

Method GetPassword() As %String
{
q ""
}

Method GetUsername() As %String
{
q ""
}

Method GetSSLConfiguration() As %String
{
q "MySSL"
}

}

Class SX3.Production.HTTP.AdvListener Extends %Net.WebSocket.IEventListener
{

Method OnMessage(pContent As %Stream.

Hi Community,

Enjoy the new video on InterSystems Developers YouTube from our Tech Video Challenge:

⏯ Using Character Slice Index in InterSystems IRIS

Hi all,

We're developing a medical appointment app that connects doctors' schedules to an appointment provider.

The provider is returning us the appointment in the following format:

Thu Jul 03 08:20:00 CEST 2025

It means, 03 july 2025 at 08:20:00 Central European Summer Time (UTC+2)

But we need the following format:

2025-07-03 08:20:00+02:00

Is there any option to convert zone time code (CEST) to a UTC+x ?

How to convert zone time code (CEST, CET, ET, EDT, etc..) in its zone time in UTC (UTC+2, UTC+1, UTC-5, etc..) ?

Best regards

Previously, we trained our model using machine learning. However, the sample data we utilized was generated directly from insert statements. 

Today, we will learn how to load this data straight from a file.

Learn how to design scalable, autonomous AI agents that combine reasoning, vector search, and tool integration using LangGraph.

Too Long; Didn't Read

• AI Agents are proactive systems that combine memory, context, and initiative to automate tasks beyond simple chatbots.
• LangGraph is a framework that enables us to build complex AI workflows, utilizing nodes (tasks) and edges (connections) with built-in state management.

Hi community,

A few weeks ago I published an API accelerator call Memoria, Is a very simple way to minimize the time and network traffic to and end-point, I hope could be useful.

The link in openexchange: https://openexchange.intersystems.com/package/memoria

Regards!

InterSystems FAQ rubric

This can be achieved by using the CSV() procedure of the %SQL.Util.Procedures class.
Below is an example of usage code. (Assuming that the file test.csv is in c:\temp.)

I have a class with a projection that creates some persistent classes (chunks) and a non-persistent "Daemon" class that I want to have running in the background, doing some processing. The daemon needs to look at the "chunk" classes, and I want it to be simple to start the daemon -- I am currently calling the daemon's start method at the end of the CreateProjection method. When I do this, I get a <CLASS DOES NOT EXIST> error from the daemon when it tries to query against one of the chunk tables. But, if I add a "HANG 5" at the beginning of the daemon start method, this runs fine.

Hello IRIS community,

InterSystems Certification is currently developing a certification exam for InterSystems IRIS SQL professionals, and if you match the exam candidate description given below, we would like you to beta test the exam! The exam will be available for beta testing starting May 19, 2025.

INTRO

Barricade is a tool developed by ICCA Ops to streamline and scale support for FHIR-to-OMOP transformations for InterSystems OMOP. Our clients will be using InterSystems OMOP to transform FHIR data to this OMOP structure. As a managed service, our job is to troubleshoot any issues that come with the transformation process. Barricade is the ideal tool to aid us in this process for a variety of reasons. First, effective support demands knowledge across FHIR standards, the OHDSI OMOP model, and InterSystems-specific operational workflows—all highly specialized areas.

• Using InterSystems Embedded Analytics – Virtual July 14-18, 2025
  
  • Embed analytics capabilities in applications and create the supporting business intelligence cubes.
  • This 5-day course teaches developers and business intelligence users how to embed real-time analytics capabilities in their applications using InterSystems IRIS® Business Intelligence.

Hi,

I'm trying to install NodeJs (javascript runtime environment) in IRIS container so I can execute JS files?
It was easy to install it outside the container but I got the attached error when trying in the container:  

Thanks

Hi everyone,

I'm preparing to move to a new PC soon and I'm trying to migrate the server connections I use in IRIS Studio to the new environment.

I’ve followed without success an old procedure I've found on a post on the community that involves exporting the registry key from:

HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Intersystems\Cache\Servers

But I’ve realized that this only includes the entries from the Server Manager and not the actual server connections used within IRIS Studio and shown within the "Server Connections" menu.

InterSystems IRIS has quite a few different kinds properties. Let’s put them in order so that they make better sense.

First of all, I would divide them into categories:

• Atomic or simple properties (all those %String, %Integer, %Data and other system or user datatypes)
• References to stored objects
• Built-in objects
• Streams (both binary and character)
• Collections (which are divided into arrays and lists)
• Relationships (one-many and parent-children)

Some of these kinds of properties are quite straightforward. For example, atomic properties:

Property Name As %Name;
Property DoB As %Date
Property Age As %Integer

Mirror Member

Hi ISC Experts,

I'm in the process of setting up InterSystems IRIS for HealthShare with database mirroring, and I’d appreciate some guidance around how to handle an existing ODBC connection in this new setup.

Scenario:

• We currently have a system running IRIS for HealthShare that external systems connect to via ODBC (using a standard connection string with hostname and port).
• We're now configuring mirroring on this system — it will become one of the mirror members (Primary/Backup).

How do you iterate over the array of namespaces returned in the result byref from the call below?

DO ##class(%SYS.Namespace).ListAll(.result)

Running "zw result" displays the namespaces (as individual subscripts in result) in the Terminal but I want to be able to programmatically iterate through each namespace name. 

The documentation for ListAll() mentions here that result will be a local array name passed by reference. Is there a way to turn it into a dynamic array?

Hi Guys,

below is a running a URL in a browser to connect and get live advertising packets data from Cassia AC server which keeps the connect live and keep going and population data. 

So now I'm doing the same in the below code but the issue I'm not getting anything and it gets stuck at Get(HttpURL) line because it hanging on that live connection I guess and not outputting, so how can I get the HTTP request to exit and get me only a snapshot of that data, maybe something like 20 sec worth of data?  

 S BleMac="DC:0D:30:9E:3A:EC",GatewayMac="CC:1B:E0:E2:56:18"
S Token=##class(SX3.Task.

Hey Community!

We're happy to share the next video in the "Code to Care" series on our InterSystems Developers YouTube:

⏯  Chaining LLMs for Better Results using Agentic AI

My intention is to show how simple it is to generate a lookup table taking into account the information received in our HL7 messaging. The HL7 message lookup table provided by IRIS is certainly sufficient for most of the searches we want to perform, but we always have that special field in our HIS, LIS, RIS, etc. that we'd like to search by. But that's in a segment outside of that lookup table. That field forces us to generate a specific search using the expanded search criteria. We'll likely have many messages, and we'll also have to filter by date and time so we don't timeout.