I'm playing with %Net.DB.Iris and stumbled over a mystery

set con=##class(%Net.DB.DataSource).CreateConnection(host,...)
set srv=con.CreateIris()
write srv.ClassMethodValue("%SYSTEM.Util","InstallDirectory")

Entering the above lines (in a terminal session) on my local instance yields the correct answer for:

host = "localhost"
host = the real IP of localhost (i.e. host="192.168...")
host = "10.x.y.dev" customers development system (over a VPN tunnel)

but for

host = "10.x.y.tst" (customers test system) I get an error:
 <THROW>zClassMethodValue+8^%Net.DB.Iris.

We are attempting to send HL7 messages over to CBOARD NetMenu over HTTP using SSL. We set this up using the EnsLib.HL7.Operation.HTTPOperation adapter. When we attempt to send the message we are receiving 

MSH|^~\&|||DIETOE|A6M0|202505131437||ACK^HTTP^415|00|P|2.1 MSA|AE|9165602|HTTP (N)ACK 'HTTP/1.1 415 Unsupported Media Type'

The vendor mentioned something about putting a SOAP/XML wrapper around the HL7 message but isn't that what the HTTPOperation adapter does? Why would we be getting Unsupported Media Type. How would we go about setting the Media Type for the HTTP HL7 message?

This article presents a potential solution for semantic code search in TrakCare using IRIS Vector Search.

Here's a brief overview of results from the TrakCare Semantic code search for the query: "Validation before database object save".

• 
  

  Code Embedding model 

There are numerous embedding models designed for sentences and paragraphs, but they are not ideal for code specific embeddings.

Three code-specific embedding models were evaluated: voyage-code-2, CodeBERT, GraphCodeBERT

HealthShare Unified Care Record Fundamentals – Virtual* June 2-6, 2025

Hello Community!

We're excited to announce that the FHIR France Meetup is making a comeback... in person at SantExpo 2025!

📅 Dates: May 21, 2025, starting at 7:00 PM

📌 Location: Halles d'Issy - Biltoki, 1 Rue Rouget de Lisle, Issy-les-Moulineaux, Paris, France

Hello Community!

The big challenge you've all been waiting for is finally here: The fourth InterSystems technical article writing contest in Spanish is here!

🏆 4th Spanish Technical Article Contest 🏆

Contest description: Write an article in Spanish in the Developer Community on any topic related to InterSystems technology.

Duration: May 12 – June 8, 2025.

Prizes for all participants: Everyone who publishes an article in Spanish during the contest period will receive a prize.

Main prize: Apple Watch SE / 10th generation iPad

Hi Community!

Check out the new video on how to build the frontend UI by prompting it in lovable or (potentially) any spec first REST API in InterSystems IRIS:

📺  Prompt the frontend UI for InterSystems IRIS with Lovable

🗣 Presenter: @Evgeny Shvarov, Senior Manager of Developer and Startup Programs, InterSystems

Hello Community,

I executed the below query in the %ZLANGC00.mac routine. It returns results when using dynamic SQL, but not with embedded SQL(returns 0). 

 &SQL(SELECT count(*) INTO :Cnt FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE='BASE TABLE'")
 Write "SQL Table count : "_Cnt,!
 Set tResultSet = ##class(%SQL.Statement).%ExecDirect(,"SELECT count(*) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE='BASE TABLE'")
 Do tResultSet.%Display()

Thanks!

I have a table in the development and want to erase data from certain columns. There is info in the docs but not for human
This piece of code does not work

ALTER TABLE table DROP COLUMN column %DELDATA

Hello,

I have a problem with the deployment. When I deploy using the Ens.Deployment.Deploy class, I no longer receive the logs in the terminal. However, the deployment went well, I see it in the history on the portal.

It works on our environment, but not on the client's.

Set tSC = ##class(Ens.Deployment.Deploy).DeployCode(chemin_"GESL_SVCCLI_DEPLOY_CPT-243_V4_0.xml","SVCCLI.ProdClient",1,chemin_"GESL_SVCCLI_DEPLOY_CPT-243_V4_0_rb.xml","L",chemin_"GESL_SVCCLI_DEPLOY_CPT-243_V4_0.log",1,1)

Thank you 🙂

According to documentation, quotation: "$THIS contains the current class context.
The class context for an instance method is the current object reference (OREF).
The class context for a class method is the current classname as a string value."
 
As my example below shows, either the documentation or the implementation (or both) is wrong, I always call a class method (Value) and expected the class name as the return value but got either the class name or an OREF. Moreover, if I repeat the call, I get another values. But why?

I use the following code to protect some code for being called by multiple processes at same time :

lock +^TEMP("FOO"):0 //don't wait
quit:'$test
//critical section
//...
lock -^TEMP("FOO")

This works between processes but it does not prevent the same process entering critical section twice.

How to do that, is there any lock option ? I would like it to behave as the lock in C# or Java.

It's OK for me to use something else than LOCK instruction (eg : signals)

Hi Developers!

Hey Community,

We're pleased to invite all the developers to the upcoming kick-off webinar for the InterSystems FHIR and Digital Health Interoperability Contest!

Date & Time: Monday, May 12 – 9 am EDT | 3 pm CEST  

Introducing Smart Clinical Sidechick — the intelligent, no-drama partner your EHR wishes it could be. She reads FHIR data in real time, interprets lab results without ghosting, and explains clinical alerts like she actually cares. Built with GPT-4 brains and YAML sass, she’s not here to replace your main EHR—just to make it look bad. Tired of irrelevant alerts and cryptic warnings? Sidechick serves up real, explainable insights, not vague “elevated risk” vibes. And when your backend crashes, she doesn’t panic—she self-heals.

I am running into an issue where a JSON response is missing keys...

{
    "count": 0,
    "pageInformation": {
        "offset": 0,
        "size": 10
    },
    "items": []
}

Within the JSON response I am only looking for two fields portalUrl and portalId. I have tried using $LENGTH and %IsDefined to check if they are valued but neither work. 

  If ((tHttpResponseIsObject) && ($ZCONVERT(tHttpResponseContentType,"L") [ "application/json"))
  {
    set responseData = {}.%FromJSON(tHTTPResponse.Data)
    set pResponse = ##class(osuwmc.COM.Response.

Hi Community,

Enjoy the new video on InterSystems Developers YouTube:

⏯ Data Fabric in Practice: Lessons Learned @ Global Summit 2024

Regardless of whether an instance of IRIS is in the cloud or not, high availability and disaster recovery are always important considerations. While IKO already allows for the use of NodeSelectors to enforce the scheduling of IRISCluster nodes across multiple zones, multi-region k8s clusters are generally not recommended or even supported in the major CSP's managed Kubernetes solutions. However, when discussing HA and DR for IRIS, we may want to have an async member in a completely separate region, or even in a different cloud provider altogether.

Hello Community,

When retrieving strings from the DAO, if the string exceeds the capacity of an ObjectScript string variable, it returns <MAXSTRING>. To prevent this, use dao.%Get(key, default, "stream") to retrieve the value as a stream (%Stream.DynamicBinary). However, Why can't we use other stream objects such as %Stream.TmpCharacter instead of %Stream.DynamicBinary/%Stream.DynamicCharacter (I understand It is not possible to create a direct object instance for %Stream.Dynamic* classes) .

I'm trying to use the assign option within a ruleset. I can trace the value with no issues but when I try to assign the same value to a variable of Namespace I get an error.
Ideally I would like to use a variable instead of repeating the Piece repeatedly throughout the rules.
Ruleset

And this is the error that I am getting.
ERROR <Ens>ErrException: <PROPERTY DOES NOT EXIST>zevaluateRuleDefinition+14^SFT.RoutingRules.AlertManCreationRule.1 *Namespace,Ens.Alerting.Context.CreateAlert -- logged as '-' number - @' set pContext.Namespace=##class(Ens.Rule.FunctionSet).Piece((pContext.AlertRequest.

Hello everyone!

FINALLY!! The technical article contest in Spanish begins on Monday 🎉🎉

I currently have an issue with a failed connection in VSCode and need some help.

It doesn't work when using ports 80, 1972, and 7038.

Hi, Community!

Looking to modernize the way you build interoperability screens in InterSystems® products? Take a tour of some recent UI improvements.

Building Integrations: A New User Experience

I need to run  do $SYSTEM.OBJ.Load(<file from linux folder>,"ck") from a linux shell script.

How would I do that?

Hi Community,

A huge thank you to everyone who participated in the Code Your Way to InterSystems READY 2025 challenge! We enjoyed watching your videos and checking out your projects. And now it's time to announce the winners! 

Hey Community!

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

⏯  How Project BEST Transforms FDA Adverse Event Reporting with FHIR

We are receiving an ORU message and the vendor is requesting that we append a new OBX segment at the end of the message and I wanted to reach out to see what options might be available. 

So far, I tried the append action in the DTL editor with a single OBX-3 field but it seems to be appending to the field directly instead of creating a new OBX. I've started looking into if whether I could use a function but wanted to first check with the experts on the Discussion here in case there's an easier way to accomplish this. Thank you. 

I am trying to replicate a REST call that I am able to make via a Postman call within a EnsLib.REST.GenericOperation.

It's been a while since I have messed around with trying to make external REST calls. When I execute my REST call, tSC is coming back with an error and I am trying to pinpoint why. I tried turning on ISCLOG = 5 but when calling the REST Operation from the Testing tool it is not logging anything to the ISC log.

How do we see the RAW request being sent out to verify that my request is formatted properly?

Hi group,

I am trying to take the InterSystems HL7 Interface Specialist certificate test. 

So is this an open book test? is there any Lab involved with vm?  I did the search but I am not able to find such information.

I am trying to find out more information before I actually take the test.

Thank you

Hi,

I've been working on a very basic Interoperability production in my computer. I followed one of the examples in the courses and created a TEST.FileRouterRoutingRule, but when trying to edit this rule, it takes me to the Rule Editor Login Page, where I can't get in (Not even with the _SYSTEM credentials) - Is this functionality unavailable in the community edition?