Article Eduard Lebedyuk · Jan 5 4m read

If you want to generate JWT from x509 cert/key, any operation (including reading) on %SYS.X509Credentials requires U on %Admin_Secure resource.%Admin_Secure is required because %SYS.X509Credentials is persistent, and it's implemented this way to prevent all users from accessing private keys.

If %Admin_Secure resource is not available at runtime, you can use the following workaround.

Upon reviewing the code for JWT generation, I discovered that the JWT code utilizes %SYS.X509Credentials solely as a source of runtime data for PrivateKey, PrivateKeyPassword, and Certificate.

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Article Vachan C Rannore · Dec 28, 2025 1m read

SET assigns value to the variable at RUNTIME.

#DIM declare the variable and it's Data Type at COMPILE TIME.







SET #DIM
Makes the variables Dynamic. Improves Readability.
No Data Type Declaration. Enables IDE auto-completion.
Runtime Useful for Object references.

#DIM name As %String
Set name = "Micheal Scott"
#DIM age As %Numeric
Set age = 36
#DIM employer As App.Employer               ; compile time
Set employer = ##class(App.Employer).%New() ; runtime 

 

SET or #DIM? Your design, your rules.

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Announcement Larry Finlayson · Jan 13

Managing InterSystems Servers – Virtual  February 2-6, 2026

  • Configure, manage, plan, and monitor system operations of InterSystems Data Platform technology
  • This 5-day course teaches system and database administrators how to manage InterSystems® Data Platform technology which powers all of our products.
  • Learn to install, configure and secure the data platform, configure for high availability and disaster recovery, and monitor the system.
  • Students also learn troubleshooting techniques.

SELF REGISTER HERE

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Question Scott Roth · Jan 13

New to using Analytics and using Dashboards. We have this Report, SQL Query that lists out the Activity per Data Source in Health Share Provider Directory. Instead of running it as a report, because it takes a while to run, was wondering if there is a way to do this as a Dashboard instead.

How can I take the SQL from this report and create a Dashboard instead?

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Announcement Anastasia Dyubaylo · Jan 13
Hello and welcome to the 2025 Annual Developer Community Recap.
General Stats
2,889 posts published in 2025:
  – 1,123 articles
  – 955 announcements
  – 755 questions
  – 56 discussions

4,592 members joined the Developer Community in 2025
25,158 posts published in total
25,553 members joined in total

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Question Preedhi Garg · Jan 12

I’m working on XML Digital Signature in InterSystems IRIS using %XML.Security.Signature

I start with an XML document that is created by parsing an input XML string, and I want to digitally sign this document using an X509 certificate.

Set x509 = ##class(%SYS.X509Credentials).GetByAlias(credAlias)
Set signature = ##class(%XML.Security.Signature).CreateX509(x509,$$$SOAPWSIncludeNone ,$$$KeyInfoX509Certificate)

Set signature.Id = "SIG1"
DO signature.SetSignatureMethod($$$SOAPWSrsasha1)
DO signature.SetDigestMethod($$$SOAPWSsha1)
Set signature.SignedInfo.CanonicalizationMethod.
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Question Dmitrii Baranov · Dec 21, 2025

I have a business service that actively reads data from a remote Postgres database. OnProcessInput opens a XDBC (actually JDBC) connection, executes an SQL query, fetches several thousand rows, iterates the resultset, and closes the connection. On each iteration I also need to update each source row in the remote database using PreparedStatement.

In other words, in every OnProcessInput call I have a long running SELECT statement and several thousands small UPDATE statements.

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Article Iryna Mykhailova · Jan 12 4m read

InterSystems IRIS is built on an architecture that separates the logical organization of data (namespaces) from its physical storage location (databases). Understanding this separation and the distinction between Namespaces and Databases is crucial for effective data management, security, and especially, high-performance data sharing.

In this article, I will discuss these foundational components and provide a practical guide on leveraging global mappings to share native data structures (globals) across different logical environments.

Databases: Physical Reality

A database represents the physical reality of where the data is stored on the disk. First and foremost, it’s a file in a file system called IRIS.dat (e.g., <Install folder>\mgr\user\IRIS.DAT). The maximum size of this file is 32TB. It is the container for all the actual data and the code. Databases are managed by the IRIS kernel, which handles caching, journaling, and transaction logging at the physical file level.

When you install InterSystems IRIS DBMS, the following databases are installed automatically:

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Question Victor Paredes · Jan 7

Hello,

We are accessing an InterSystems Cacha database from Microsoft SQL Server using a linked server over ODBC (ODBC35). Queries are executed using OPENQUERY.

On the SQL Server side, there is a linked server property called Query Timeout. By default it is set to 0 (no timeout). We are considering setting it to 15 seconds and would like to understand how Cache behaves in this scenario.

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Article Jean Millette · Apr 23, 2025 7m read

I have a new project to store information from REST responses into an IRIS database. I’ll need to sync information from at least two dozen separate REST endpoints, which means creating nearly that many ObjectScript classes to store the results from those endpoints.

Could I use ChatGPT to get a headstart on creating these classes? The answer is “Yes”, which is great since this is my first attempt at using generative AI for something useful. Generating pictures of giraffes eating soup was getting kind of old….

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Question Ruslan K · Dec 4, 2025

Hello. Here is   XData ReportDefinition

/// XML that defines the contents of this report.
XData ReportDefinition [ XMLNamespace = "http://www.intersystems.com/zen/report/definition]
{
<report xmlns="http://www.intersystems.com/zen/report/definitionname='bills' runonce="true">
<attribute name='runTime' expression='$ZDT($H,3)/>
    <attribute name='runBy' expression='..GetUserName()/>
    <attribute name='author' expression='..ReportAuthor'/>
<group name='bills' OnCreateResultSet="CreateRS">
<parameter name="MonthDt" expression="..Month"/>
<parameter name="Company" expression

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Question Ruslan K · Jan 8

Hello
How to hide a table completely in pdf generation when a row is empty?
A table has style with borders
<table  group="services" removeEmpty="1" style="border:1px solid black;">
     <item field="TotalSum" suppressEmpty="1" />

     <item field="TotalAvSum" suppressEmpty="1" />
 </table>
With 
removeEmpty="1" and  suppressEmpty="1"  all data are hidden when a row is empty but top and bottom borders are remain on the page.
How to hide also table's top and bottom borders when a data row is empty?

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Article Tani Frankel · Dec 28, 2025 6m read

Sometimes it is more convenient, more efficient, and more secure, to limit FHIR Searches per pre-defined "Lists" of Resources.

Since v2025.1 we support several List-related features in our FHIR Server.

I will highlight these here, and provide some samples.

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Announcement Anastasia Dyubaylo · Jan 10
Hello and welcome to the December 2025 Developer Community YouTube Recap.
InterSystems Ready 2025
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Announcement Anastasia Dyubaylo · Dec 26, 2025

Dear Community members,

We are currently performing technical work, and during this time, you may experience issues with the Developer Community portal, Developer Community AI, and search functionality:

🔹 Ask DC AI is temporarily unavailable
🔹 Search may take longer than usual or may not return results
🔹  You may experience problems with logging into the Developer Community and Open Exchange

We’re working to restore full functionality as quickly as possible. Thank you for your patience and understanding.

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Question Michael Davidovich · Apr 17, 2025

I have see this discussed on the community but I'm not quite finding an answer. 

I have a method that is called in the OnPreHttp() method of a CSP page.  That method returns a dynamic object and a set a new variable to the %ToJSON method of the object so I can use it in my JavaScript code later to init a table of data (using the #(variable)# syntax).  This creates a MAXSTRING error.  So I changed it to return a %Stream.TmpCharacter.  But if I call Read($$$MaxStringLenght) I only get part of the data.

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Question Ashish Rathor · Jan 7

Hi Everyone!

We have an existing process (running in FIFO order), all business hosts having pool size=1.

Currently we are reading records from a file (one record at a time) then that record goes to business process for further processing and finally through the business operation. As of now we are using synchronous call in our existing code. Before processing the last record we are using hang of 50 seconds because we need to initiate a batch once the processing of last record is finished.

This process is taking too much time for a file having 0.1 million records (max records in a file).

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Announcement Larry Finlayson · Jan 8

Developing Custom Components for Integrations – In Person (Boston, MA) February 10-12, 2026

  • This 3-day course teaches implementation partners, integrators, developers, and analysts how to create custom interfaces using InterSystems integration technologies.
  • Students build a Production using InterSystems® Objects, graphical tools in the Management Portal, Business Process Language (BPL), the adapter library, and an IDE.
  • Students create business services, business processes, business operations, and messages.
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Discussion Olga Zavrazhnova · Dec 10, 2025

As part of our holiday journey, it’s time to add a little cozy, fun energy to the community ✨
Welcome to the Holiday Jumper Challenge 🧣🎁

How to join:

✅ Share one festive photo in this thread. This can be:

  • you in a holiday jumper or sweater (selfies are optional, if you are not comfortable sharing!)
  • your desk / office / house decorations / tree or any cozy seasonal setup

✅ Get 50 points for participating (we will award manually on Global Masters) 🎁
Best photo win 100 extra points!
Let’s light up this thread with some cozy holiday vibe🎄💻

⬇️ Share your photo below! 

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Question Scott Roth · Jan 7

I was trying to see if we could connect to another Server, we use to execute external scripts using %Net.SSH.Session.

TESTCLIN>set sshSession = ##class(%Net.SSH.Session).%New()

TESTCLIN>set user = <omitted>

TESTCLIN>set host = <omitted>

TESTCLIN>set privateKey = "/nfs/data/ssh/<omitted>"
TESTCLIN>set publicKey = "/nfs/data/ssh/<omitted>.pub"
TESTCLIN>Set statusConnection = sshSession.Connect(host)

TESTCLIN>set statusAuth = sshSession.
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Question Evgeny Shvarov · Jan 4

Hi Developers!

Sometimes we need to deal with classes/tables where the primary key and the IdKey are something that is maintained by yourself.

What is the proper way to generate a new ID in case where ID is a %BigInt?

Property id As %Library.BigInt

Are there any system methods to provide it?

There is data already imported via SQL, so there is no last ID stored in ^myclassD, so I cannot do $I(^myclassD).

Thinking of:

set newid=$O(^myclassD(""),-1),newid=$I(newid)

What do you think?

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