Starting out with ObjectScript, it is really exciting, but it can also feel a little unusual if you're used to other languages. Many beginners trip over the same hurdles, so here are a few "gotchas" you'll want to watch out for. (Also few friendly tips to avoid them)


NAMING THINGS RANDOMLY

We have all been guilty of naming something Test1 or MyClass just to move on quickly. But once your project grows, these names become a nightmare.

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Article
· Sep 16 14m read
High Availability IAM

One of the recommendations when deploying InterSystems Technologies for production is to set up High Availability. The recommended API Manager for these InterSystems Technologies is the InterSystems API Manager (IAM). IAM (essentially Kong Gateway) has multiple deployment topologies.

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I joined InterSystems less than a year ago. Diving into ObjectScript and IRIS was exciting, but also full of small surprises that tripped me up at the beginning. In this article I collect the most common mistakes I, and many new colleagues, make, explain why they happen, and show concrete examples and practical fixes. My goal is to help other new developers save time and avoid the same bumps in the road.

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Introduction

HL7 messages often contain multiple repeating segments such as NTE, AL1, OBX, ZTX, DG1, and others. These segments sometimes require individual processing and routing to different downstream systems. This technical paper introduces a configurable template designed to automate the splitting of these repeating HL7 segments, improving message handling and integration efficiency.

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Hi,

Just thought I'd share quite a handy hook that has helped me out when developing on Health Connect Cloud with VS Code and GitBash. When developing on Health Connect Cloud, if changes are made directly on the server such as routing rules or component deployments, they aren't automatically included in source control, therefore you must export from the server into your local files and push to your remote repo. I'm sure there are easier methods to deal with that which I'm in the process of testing, but as a quick solution I thought it would be handy have a pre-commit hook which triggers a reminder in GitBash - see below.

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InterSystems FAQ rubric

One way to optimize query performance is to use query parallelism on a per-query or system-wide basis (a standard feature).

This is a technique for dividing the execution of a particular query among processors on a multi-processor system. The query optimizer will execute parallel processing only if there is a possibility of benefiting from parallel processing. Parallel processing is only applicable to SELECT statements.

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Securing IRIS Integrations with Mutual TLS (mTLS): A Practical Guide

In today’s enterprise environments, secure communication between systems is not optional—it’s essential. Whether you're integrating InterSystems IRIS with cloud APIs, internal microservices, or third-party platforms, Mutual TLS (mTLS) offers a powerful way to ensure both ends of the connection are authenticated and encrypted.

This post walks through how to configure IRIS for mTLS and how to validate your certificates to avoid common pitfalls.

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Ready to elevate your Business Intelligence game?

We've got an engaging video, perfect for all skill levels.

Discover how to get started with IRIS BI, optimize cube performance, and drive analytics adoption. Plus, get a sneak peek at what's next!

https://www.youtube.com/embed/Ekjzny8zj98
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Hi everyone,

I'm currently seeking a new position related to InterSystems technologies. My major skill is app integration and data flow development on the InterSystems IRIS platform (Interoperability). I develop high-load, mission-critical software. My coding background on Cache ObjectScript includes hundreds of data flows, thousands of Production business hosts, dozens of APIs, and other solutions on InterSystems IRIS. I worked to integrate such applications as SAP S/4HANA, Oracle Siebel, SAP Commerce Cloud, many custom apps, and all that can be integrated. I have also gained experience in various areas, including SQL, Java, Docker, IRIS administration, Kafka, and Flutter (Dart).

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My problem was separating HL7 messages by message type. I had to create multiple File Operations. So I with custom code I am able to use 1 File Adapter for 1 interface and multiple message types. I did experiment pulling the MSH 4 out of the raw content to further access dynamic information, but that may open a need for more robust error checking / lookup default actions.

Using the recommended naming convention of "To_FILE_<IntegrationName>"

I decided to use a generic file name and path in the default settings.

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We currently have Business Operation that we built to use the EnsLib.SQL.OutboundAdapter so we can make Microsoft SQL Server Stored Procedure calls. The BO is attached to a Java Gateway Service.

Some of our MS SQL Databases have moved from being OnPrem to Azure Cloud. We have started seeing where we are receiving errors on the BO saying that we cannot connect to the Azure Database, but we never receive a Disconnect from the Azure Database.

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FHIR Server

A FHIR Server is a software application that implements the FHIR (Fast Healthcare Interoperability Resources) standard, enabling healthcare systems to store, access, exchange, and manage healthcare data in a standardized manner.

Intersystems IRIS can store and retrieve the following FHIR resources:

  • Resource Repository – IRIS Native FHIR server can effortlessly store the FHIR bundles/resources directly in the FHIR repository.
  • FHIR Facade - the FHIR facade layer is a software architecture pattern used to expose a FHIR-compliant API on top of an existing one (often non-FHIR). It also streamlines the healthcare data system, including an electronic health record (EHR), legacy database, or HL7 v2 message store, without requiring the migration of all data into a FHIR-native system.

What is FHIR?

Fast Healthcare Interoperability Resources (FHIR) is a standardized framework created by HL7 International to facilitate the exchange of healthcare data in a flexible, developer-friendly, and modern way. It leverages contemporary web technologies to ensure seamless integration and communication across various healthcare systems.

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Often times when working with FHIR data, for example with IRIS For Health, you'll find it useful to create a custom FHIR operation. The FHIR Standard comes with a set of defined operations (such as $everything) but a custom operation comes in handy when you need to create some extra functionality that goes beyond the set of standard FHIR operations.

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We have a task that runs objectscript code to load data into a linked external table. After upgrading from 2024.1 to 2025.1, the load is throwing an error, with error code -400, and no error message. The data DOES get loaded into the external table in its entirety, so with no meaningful error message, its hard to determine what the issue is. The result is the same with and without the USING clause, so don't let that confuse you. We have logs of this statement succeeding before upgrade, and were able to get this statement to work in our production environment, which is still on version 2

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..Contains(source.{ORCgrp(x1).OBRuniongrp.NTEi2(x2):Comment(x3)},"(")&&..Matches(source.{ORCgrp(x1).OBRuniongrp.NTEi2(x2):Comment(x3)},"^[A-Z][0-9][0-9]$")

I want to do this to match strings such as X98. Community AI tells me this is correct but I get an error in testing. Specifically, this is the part causing the error;
..Matches(source.{ORCgrp(x1).OBRuniongrp.NTEi2(x2):Comment(x3)},"^[A-Z][0-9][0-9]$")


What do I need to change?

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I created a Custom Search Table that extends EnsLib.HL7.Search Table. I saved, compiled, and rebuilt the index however when I go into Message Search to try to use the Search Table, within the conditions the proper fields are not showing up that was defined. It is showing the fields from EnsLib.HL7.SearchTable. I did a build index on both EnsLib.HL7.SearchTable and OSU.HL7.SearchTable.

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#InterSystems Demo Games entry


⏯️ Health Evolve: Transforming Unstructured Data

Did you know that 80% of healthcare data is stuck in unstructured formats such as fax? If you take a walk down to Mass General in Boston, you'll literally see a state-of-the-art MRI machine next to a fax machine. Healthcare keeps building incredible new technology but can't let go of legacy technology. We call this the "legacy modernization paradox". This short film follows a care manager at Blue Plan who spends her days doing chart reviews, reading faxes line-by-line, struggling to provide her members the care they need. Everything changes when Blue Plan pilots InterSystems Health Evolve, a solution that transforms her faxes into machine-readable FHIR data ready for AI and analysis. To access our fully working Text-to-FHIR prototype, visit HealthEvolve.de.

Presenters:
🗣 @Vishal Pallerla, Sales Architect, InterSystems
🗣 @Erica Song, Sales Engineer, InterSystems
🗣 @Louis Kabelka, Sales Engineer, InterSystems
🗣 Zelong Wang, Sales Engineer, InterSystems
🗣 John Murtha, Health Plan Executive, InterSystems

https://www.youtube.com/embed/FcL1u3Ir0jM
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#InterSystems Demo Games entry


⏯️ Being READY to Tackle Healthcare Enterprise Challenges in a Few Clicks

Managed Cloud Solutions to Help Streamline Your Health Services.

This demo showcases composing several InterSystems Managed Cloud Services to solve various use-cases.

The video is actually built of 6 short chapters (each ~2.5 minutes long) showing each part of the story, demoing a different service.

You can watch each "chapter" individually if you're interested in a specific service, but there is value in viewing the whole composition and observing the full flow.

  • 0:00 Health Connect Cloud - Medical Device MQTT - HL7v2 for Hospital Operation Systems
  • 2:29 FHIR Server & FHIR Transformation Service - HL7v2 to FHIR & Repository for Regulation & Exchange
  • 5:21 FHIR SQL Builder - Providing standard relational access to FHIR data
  • 7:22 "FHIR IntelliChat" (see note below) - Natural human language chat with FHIR Server
  • 9:37 OMOP Solution - FHIR to OMOP transformation & OMOP database with OHDSI tools compliance
  • 12:54 InterSystems Data Studio for Health - Creating a multi data/app sources fabric

[Note the "FHIR IntelliChat" part is not an actual formal InterSystems service, it is just a demonstration of a possibility (based on this solution by @José Pereira) ]

Presenters:
🗣 @Tani Frankel, Sales Engineer Manager, InterSystems
🗣 @Keren Skubach, Senior Sales Engineer, InterSystems
🗣 @Ariel Glikman, Sales Engineer, InterSystems

https://www.youtube.com/embed/MM7GS4z3W5Y
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