#InterSystems IRIS

Developing with InterSystems Objects and SQL – In PersonJune 9-13, 2025

There have been some really good, helpful posts on this already:

https://community.intersystems.com/post/robust-error-handling-and-clean…

https://community.intersystems.com/post/registering-new-error-code-and-…

https://community.intersystems.com/post/objectscript-error-handling-sni…

https://community.intersystems.com/post/can-you-have-custom-status-obje…

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

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?

Hello everyone,

I am attempting to implement continuous integration using Docker with Caché 2018.1, and I am in the process of creating an image for our client. I have already installed Caché 2018.1 on the RedHat server, but I am working on a script to create the database and namespace. For the database, I used the following code:

do ##class(SYS.Database).CreateDatabase("/usr/cachepoc/cache2018/mgr/poc/")

However, I have encountered some issues with this code. For instance, I am unable to view this local database in the portal's list:

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(SELECTcount(*) INTO :Cnt FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE='BASE TABLE'")
 Write "SQLTablecount : "_Cnt,!
 Set tResultSet = ##class(%SQL.Statement).%ExecDirect(,"SELECTcount(*) 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?Does anyone have a clear explanation (for an aging brain) or have I

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

lock +^TEMP("FOO"):0//don't waitquit:'$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)

There are a lot of great community articles regarding "vector search on IRIS", and samples in OpenExchange. Everytime I see these, I'm so excited to know that so many developers already try vectors on IRIS!

But if you've not tried "Vector Search on IRIS" yet, please give me one minute 😄 I create one IRIS class - and with only one IRIS class you can see how you put vector data in your IRIS database and how you compare these in your application.

If you are a customer of the new InterSystems IRIS® Cloud SQL and InterSystems IRIS® Cloud IntegratedML® cloud offerings and want access to the metrics of your deployments and send them to your own Observability platform, here is a quick and dirty way to get it done by sending the metrics to Google Cloud Platform Monitoring (formerly StackDriver).

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. 

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. With additional options added to IKO in the

Hello Community,

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

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

How would I do that?

When AMD published the x86-64 standard in 1999, little did they know they were inventing what would become the de-facto architecture for server CPUs.  But the CPUs of today aren’t the same as ones produced 20 years back – as they have extensions for everything from Advanced Vector Extensions (AVX) to Hardware-Assisted Virtualization (VT-d).

InterSystems would like to take better advantage of these new extensions in upcoming versions of InterSystems IRIS.  While our compilers are smart enough to create optimized code for many situations, some optimizations can only be turned on by explicitly cutting off support for processors that do not have that instruction set. Additionally, we are finding it increasingly difficult to maintain older CPU models to test on.

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.

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?

Join our next in-person Developer Meetup in Cambridge to explore the latest trends, tools, and features for innovating on health data.

Talk 1: AI Coding Assistants in Practice
Speaker: @Derek Gervais, Developer Relations Evangelist, InterSystems

Talk 2: MCP, SkyNet and You!
Speaker: Dave McCaldon, Senior Development Manager, InterSystems

>> Register here

⏱ Day and Time: May 14, 5:30 p.m. to 7:30 p.m.
📍CIC Venture Café in Cambridge, Massachusetts

It helps to remove special characters, such as non-utf-8 characters either control characters or unicode characters from text that is not printable or can't be parsed by downstream systems.

There is also $C(32) in this condition; sometimes NBSP appears in the text and it will not be recognized by TIE, but downstream it displays as "?".

In order to avoid the NBSP issue, the if condition is replaced with a space in order to prevent the error.

Unicode characters only Remove:

 Hello IRIS Fans and Welcome to IRIS iRacing!

Here were going to take 3 laps of your time and demonstrate how I wired up my Racing SIM to IRIS for "As Real Time as It Gets" Metrics reporting.  I missed the window for the contest, which happens quite often, but I still ended up 3rd I think in the demo race in the video below.

Technical Salad

Below are the technical ingredients for this demonstration for a salad you can post on Instragram.

• Python iRacing SDK ( https://github.com/kutu/pyirsdk/tree/master )
• InterSystems IRIS Community / Python Interop
• Prometheus
• Grafana
• Custom Metric Class

Hi Community!

We know that every developer has small side projects — apps where you experiment with new technologies, test ideas before implementing them in bigger solutions, or just build something fun for the sake of curiosity. But what if one of those projects could take you all the way to the InterSystems READY 2025? 

We’re launching a unique opportunity: show us your passion, creativity, and love for IRIS, and win a free pass to the InterSystems READY + hotel accommodation!

The rules are simple: upload your fun IRIS-based side project to Open Exchange, and record a short inspirational video about why you should be the one to get the pass to THE event of the year and win!

Duration: April 21 - May 04, 2025

Prizes: hotel accommodation and free passes to the InterSystems READY 2025!

Hello Community,

I have a queue that I need to traverse and perform operations on. To distribute the workload across multiple processes, I used a Work Queue Manager do process and I'm not expecting any status from it So, I skipped Sync / WaitForComplete in my implementation

Hello everyone,

I am using a class that inherits from %RegisteredObject and %JSON.Adaptor to generate a JSON string from its instances.

However, one of the properties in my class is of type %Library.DynamicObject, as in the example:

Class Faces.Option Extends (%RegisteredObject, %JSON.Adaptor)
{ 
Property legend As %String;Property xAxis As %Library.DynamicObject; 
}

Hi devs!

Suppose I have an instance of a persistent class:

Set person = ##class(dc.Sample.Person).%OpenId(1)

Class is an ancestor of %JSON.Adapter.

How can I convert it to dynamic object with the properties that person.%JSONExport() provides?

{"Name":"Elon Mask","Title":"Associate Accountant","Company":"InterSystems","Phone":"799-933-5569","DOB":"1926-12-11"}

Couldn't find a right method.