Hi Developers!

Currently I have 2000+ lines in a class, and I think it's a lot already? What are the best practices? 

if 10K lines OK? How do you cope with it? Please share?

Greetings,

As a long time Cache developer is there a way to get a copy of the Cache Studio that supports IRIS 2024.3? I do not have a WRC account? I need Studio just to experiment, not to build commercial software.

Thank you,

Everardo

Hi, Community!

👩‍⚕️If you need to access clinical data at scale, the InterSystems Bulk FHIR Coordinator can help!

Using the InterSystems Bulk FHIR Coordinator to Extract Clinical Data

We use local containers  a lot for evaluation and development with Health Connect and other IRIS based applications.

When evaluating Podman Desktop on Windows as replacement for Docker Desktop, we are experiencing an issue with the durable %SYS:

The only way it works is when we use a named volume which then is located inside the WSL-Podman-Machine under /var/lib/containers/storage/volumes/... 
With Docker Desktop we could simply bind-mount a folder inside our workspace, and could browse the folders inside the durable %SYS, this does not work with podman, IRIS won't start because of security

When I build docker containers my build log usually looks like this:

#924.94 Using 'iris.cpf' configuration file
#925.82
#927.55 Starting Control Process
#927.55 Global buffer setting requires attention.  Auto-selected 25% of total memory.
#927.55 Allocated 4999MB shared memory
#927.553915MB global buffers, 391MB routine buffers
#929.84 This copy of InterSystems IRIS has been licensed foruse exclusively by:
#929.84 No local key detected, trying license server.
#929.84 Copyright (c) 1986-2026 by InterSystems Corporation
#929.84 Any other use is a violation of your license

Hello Team,

I am currently working with the CD Ruby machine, which is connected through DIGI. When I click on the “Test Link” option on the instrument, I can see the following behavior in Wireshark logs:

Ensemble sends an ACK (06) after receiving ENQ (05), followed by EOT (04) (somewhat like above photo). However, when another ENQ is received, Ensemble does not send an ACK in response. As a result, the instrument displays a failure message.

Also attaching the Ensemble settings:

I am using a TCP service with an inbound adapter configured for the ASTM protocol.

In the previous article, we examined how we can use the %CSP.Request and %CSP.Response classes to test a REST API without having the API fully set up and accessible across a network with an authentication mechanism. In this article, we will build on that foundation to perform some simple unit testing of one of our REST API methods.

The unit testing framework requires a couple of setup steps before we can use it.First, we have to ensure that the unit testing portion of the management portal is enabled so we can review the results of our tests.

Hey Developers,

Watch this video to learn about automating the provisioning and management of FHIR services:

     ⏯ Automating Provisioning and Management of FHIR Services @ Ready 2025

Hello DC community, 

InterSystems Certification is currently developing a certification exam for ObjectScript developers, and if you match the exam candidate description below, we would like you to beta test the exam! The exam will be available for beta testing starting February 18th, 2026. 

Beta testing will be completed May 4, 2026.

What are my responsibilities as a beta tester?

As a beta tester, we ask that you schedule and take the exam by May 4, 2026. The exam will be administered in an online proctored environment free of charge (the standard fee of $150 per exam is waived for all beta

We are attempting to "Repoint" old class data to new class data to save disk space and data redundancy across multiple tables. This works to a point.  In essence the two classes are sharing the same data / Index / stream globals.  But if an ID in the Old_Class is opened, a property is modified, and saved the property that is in the New_Class (but not in the Old_Class) is NULLed / blanked.

Simplified explanation of data and what’s occurring.

Intersystems IRIS Productions provide a powerful framework for connecting disparate systems across various protocols and message formats in a reliable, observable, and scalable manner. intersystems_pyprod, short for InterSystems Python Productions, is a Python library that enables developers to build these interoperability components entirely in Python.Designed for flexibility, it supports a hybrid approach: you can seamlessly mix new Python-based components with existing ObjectScript-based ones, leveraging your established IRIS infrastructure.

Welcome to the finale of our journey in building MAIS.

• In Part 1, we constructed the agnostic "Brain" using LiteLLM and IRIS.
• In Part 2, we designed the "Persona", mastering Dynamic Prompt Engineering and the ReAct theory.

Now, the stage is set. Our agents are ready, defined, and eager to work. However, they remain frozen in time. They require a mechanism to drive the conversation, execute their requested tools, and pass the baton to one another.

Today, we will assemble the Nervous System. We are going to implement the Orchestrator using InterSystems BPL, creating a living, breathing loop that

Hi Community,

We're happy to announce that registration for the event of the year — InterSystems Ready 2026 — is now open. This is the premier global summit for the InterSystems technology community – a gathering of industry leaders and developers at the forefront of their respective industries. This event attracts a wide range of attendees, from C-level executives, top subject matter experts and visionary leaders, managers, directors and developers. Attendees gather to network with peers, connect with InterSystems partners, learn best practices and get a firsthand look at upcoming features and future innovations from InterSystems.

➡️ InterSystems Ready 2026

🗓 Dates: April 27 - 30, 2026

📍 Location: Gaylord National Resort & Convention Center, National Harbor, Maryland, USA

Hi,

I'm having a problem with %JSON.Adaptor and "list of" binding.

For exemple, this class with a property "oazisCode As list of %String".

Class User.ADGroup Extends (%Persistent, %JSON.Adaptor)

{
/// Code interne
Property code As %String;

/// Libellé
Property text As %String(MAXLEN = "");

Property oazisCode As list Of %String;

}

The first time call to %JSONImport works properly

s r = ##class(User.ADGroup).%New()
s json = {"code": "123", "text":"456", "oazisCode": ["1","2"]}
d r.%JSONImport(json)
w r.oazisCode.Size
2

If I call %JSONIMport a second time with another json , the

I was having trouble with some dimension based calculated members defined in Analyzer.  They would work and then not work.   At one point I had two identical calculated measures, same code, same specification and one would work and one would not.  I was trying to set them up in "shared storage", that checkbox in the calculated member dialog that should allow the measures to be used across multiple pivots. 

My hypothesis to the inconsistent behavior of the calculated members was that their definitions were somehow being mangled behind the scenes when the Analyzer logged the "shared code" to

Hello,

First of all thanks for your time reading our question, and thanks for your replies and help

We would need to know if a patient has less than 65 years old, using their birthday from the PID 7.1

So far we have developed the following code:

 //19760422 
  set nacimiento             = request.GetValueAt("PID:DateTimeofBirth.Time")
  $$$LOGINFO("nacimiento: "_nacimiento)


  //22/04/1976
  set nacimientoFormateado   = ##class(Util.FuncionesComunes).DateFormatConvertToXML(nacimiento)


  // ""
  set nacimientoFormateado65 =

Hi communauty

I've two columns in my table and the type must be interval of integer values for example : age must be interval between [2 and 6] years and wigth between [10 and 30 ] Kg , how can i define them when creating my table?

thank's

Hi all,

I've created a method to calculate the age of a person, or the age of a process, contract or other stuff as you want.

/// Calculate the age from date of birth and other date (by default shoud be today)./// <b>dateOfBird</b> Date of birth in cache format.ie./// <b>day</b> Date to calculate to.

Hello All,

No matter what I try in Business Process Logic (BPL), I am unable to calculate the patient's age in days or years.

Has anyone ever built logic in a Business Process (BPL) to calculate a person's age in days?

Thank you!

Why do these clauses affect SQL performance?

select ID from some_table where row_status in ('I','U') order by ID limit 5 - makes the query infinite select top 10 ID from some_table where row_status in ('I','U') order by ID - the same select ID from some_table where row_status in ('I','U') order by ID - is fast

Actually there are no rows in the table having row_status 'I' or 'U'.

I asked Gemini and it recommended me rewrite the query as

select ID from table where row_status in ('I','U') order by ID || '' limit 5,

and this helped, but I have never encountered a similar problem with any other

I want to implement isc-rest in my new project iris-budget/module.xml at master · oliverwilms/iris-budget

I get this error:

#8 11.30 Building dependency graph...
#8 12.69 ERROR! Could not find satisfactory version of isc.rest in any repositories. Required by: iris-budget 0.0.1: ^2.0.0
#8 ERROR: process "/bin/sh -c iris start IRIS && \tiris session IRIS < iris.script &&     ([ $TESTS -eq 0 ] || iris session iris -U $NAMESPACE \"##class(%ZPM.PackageManager).Shell(\\\"test $MODULE -v -only\\\",1,1)\") &&     iris stop IRIS quietly" did not complete successfully: exit code: 1
 

In this article, I aim to demonstrate a couple of methods for easily adding validation to REST APIs on InterSystems IRIS Data Platform. I believe a specification-first approach is an excellent idea for API development. IRIS already has features for generating an implementation stub from a specification and publishing that specification for external developers (use it with iris-web-swagger-ui for the best results). The remaining important thing not yet implemented in the platform is the request validator. Let's fix it!

Hey Community!

We're happy to share a new video from our InterSystems Developers YouTube:

     ⏯  Optimizing Query Performance in Health Insight @ Ready 2025

I am working on a new project oliverwilms/iris-budget
based on intersystems-community/iris-fullstack-template: This template shows you how to build, test and deploy a simple full-stack application using InterSystems IRIS REST API

I do not understand why I get this error:

[INFO] ...started InterSystems IRIS instance IRIS
[INFO] Executing command /docker-entrypoint.sh iris-after-start ...
[INFO] Create namespace: USER
[ERROR] module 'iris' has no attribute 'system'
[ERROR] Command "/docker-entrypoint.sh iris-after-start " exited with status 256
[FATAL] Error executing post-startup command
[INFO]

Recent versions of IRIS come with Lite Terminal available from VSCode. It's a websocket server, with JSON messaging. Here's how to connect to it from Python:

import websocket
import argparse
import requests
import json


defterminal(host, port, namespace, username, password, command, secure):
    session = requests.Session()
    r = session.get(f"http{"s"if secure else""}://{host}:{port}/api/atelier/", auth=(username, password))
    cookies = session.cookies.get_dict()
    ws = websocket.WebSocket()
    ws.connect(f"ws{"s"if secure else""}://{host}:{port}/api/atelier/v8/%25SYS/t

We use the Caché JDBC Gateway to Oracle and SQL servers to directly invoke their stored procedures from Ensemble. Getting quick, inline data results back are typically handled within the Functions.Library class as a function to wrap the query and format the return appropriately.

But what about more elaborate stored procedures made for posting data without log-jamming a Router?  The operations to construct those data pipelines can get tedious, especially when changes are needed.  What follows is a code generator to make a new Ensemble Message class from a SQL Stored Procedure that is compatible

Hi Community! 👋
As 2026 gets underway, we’d love to hear what you’re focusing on this year.

This discussion is a space to share your resolutions, goals, and focus areas for 2026 - technical, professional or community-related.

These don’t have to be traditional New Year’s resolutions. Think of them as intentions or priorities you’d like to work on this year.

💬 What you can share

• Skills or technologies you want to learn
• Projects you want to start or continue
• Things you want to improve at work
• Events or activities you want to take part in
• Anything you’re excited to focus on in 2026

✍️ How to

Hi Community,

Here we have requirement to process messages min 10 sec delay. Current time it is taking my businessProcess is less than 1 sec.

To implement this requirement , I need to sleep 10 sec in business process custom code.

Could somebody help me to implement delay in BusinessProcess.

Thanks,

Prashanth

Hello everyone,

The Certification Team of InterSystems Learning Services is excited to announce the release of our new InterSystems EHR Reports Specialist exam. It is now available for purchase and scheduling in InterSystems exam catalog. This exam tests candidates’ ability to use Logi Report Designer along with TrakCare/Intellicare to design, author, and support InterSystems Reports. For a list of topics covered by the exam, please refer to the exam page. Candidates who successfully pass the exam will receive a digital certification badge that can be shared on social media accounts like LinkedIn.  If you are new to InterSystems Certification, please review our program pages that include information on taking exams, exam policies, FAQ and more.