David Foard · Feb 23, 2019
FileSpec wildcard question

For the FIleSpec on a file service can you use a multiple wildcard values like *CLINICALENCOUNTER*.xml?

It seems like you are restricted to a single wildcard value.

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I want to consume external websocket api, URL looks like this:


Checked with external tool (Simple WebSocket Client) that websocket works and I can consume the data.

In Cache the relevant functionality is offered by %IO.Socket class.

set sock = ##class(%IO.Socket).%New()
set sock.SSLConfig = "MyEmptySSLConfig"
set sock.TranslationTable="UTF8"
do sock.Open("<token>","443", 10,.sc)

However I get this error:

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I need to add some extensions to the HS.FHIR.vSTU3,Model.Resource.Patient class and then use those extensions to convert incoming FHIR JSON to the FHIR Patient Resource and Likewise add functionality to create A FHIR Patient (target class) from my patient database into the FHIR Patient  Resource Object (target class)


many months ago I found a tutorial that explained all of this but can no longer find that tutorial.



Nigel Salm 

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Hi Developers!

Recently we launched InterSystems Package Manager - ZPM. And one of the intentions of the ZPM is to let you package your solution and submit into the ZPM registry to make its deployment as simple as "install your-package" command.

To do that you need to introduce module.xml file into your repository which describes what is your InterSystems IRIS package consists of.

This article describes different parts of module.xml and will help you to craft your own.

I will start from samples-objectscript package, which installs into IRIS the Sample ObjectScript application and could be installed with:

zpm: USER>install samples-objectscript

It is probably the simplest package ever and here is the module.xml which describes the package:

<?xml version="1.0" encoding="UTF-8"?>
<Export generator="Cache" version="25">
  <Document name="samples-objectscript.ZPM">
      <Resource Name="ObjectScript.PKG"/>

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Robert Cemper · Feb 8, 2019 2m read
Client for WebSockets based on Node.js

WebSockets as a communication technology wins increasing importance.
In the SAMPLES namespace, you find a nice example for running a WebSocket Server.
There is also a useful example for a Browser Client. JavaScript does most of the work. 

My point is:
How to consume the output of a WebSocket Server in your application?

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David Foard · Nov 15, 2019
Question on sharding

Prior to IRIS, using ECP to share databases under heavy I/O load has known latency issues (in our environment), which pretty much restricted using shared database with relatively static or slow-changing data. In IRIS, will sharding mitigate the latency issue and allow any table to be shared?



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Matthieu Laurent · Jun 24, 2019
Try/Catch within BP

Hello everyone,


I'm facing an issue i would like to resolve :).

I have a BPL which throw a DTL. My DTL has many reasons to raise an Exception.


I would like to catch this exception within my BP with a SCOPE but it does not work.

The BP seems to catch its own Exception but does not care at all of my DTL Exception.


So, is it possible to use the SCOPE in my case ? Otherwise, how can I handle the exception in my DTL ?


Thanks a lot for your reply.



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somehow my installation on win10 canceled during finish. "Installation of Caché finished" showed up for 20 minutes and canceled with an error I didn't saved.

Every file and service was installed but never registered as successfull installation. Now I try to reinstall it but the installer shows me everytime "Another installation is already in progress. Please finish the second installation first".

The unfinished installation is broken. I can't startup Caché from launcher. So I deleted everything in c:/intersystems

Things I already tried:

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Hi, a client have a installed enviroment with mirror activated, but when you test SSL on webservices you can get an error, not SSL access correctly from browser because certificate problem apparently with TLS Version, someone have a suggestion to reinstall SSL Certificates on mirrors ?

Chrome : something wrong, no details or diagnostic

We try simple regenerate Authority an regenerate all certificates, but not worked. Same results.

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Flávio Lúcio Na... · Oct 28, 2019
Error SQL Select


I am having a problem with SQL Select, the command in portal is OK, show all items, but when I use a CacheDataAdapter in VB .NET show the message 'Incorrect list format 0>=0'.  What could be this message? Because is the same SQL command.

Best Regards.



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I am facing issue during LDAP lookup like whenever I used product group parameter in AD explorer to search data from application I am getting empty result. If I set product group parameter as null then based on distinguished name result is generated in application. So if anyone knows about how LDAP works and how parameters are set in AD explorer then please let me know.

Thanks in advance.

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Last time we deployed a simple IRIS application to the Google Cloud. Now we’re going to deploy the same project to Amazon Web Services using its Elastic Kubernetes Service (EKS).

We assume you’ve already forked the IRIS project to your own private repository. It’s called <username>/my-objectscript-rest-docker-template in this article. <root_repo_dir> is its root directory.

Before getting started, install the AWS command-line interface and, for Kubernetes cluster creation, eksctl, a simple CLI utility. For AWS you can try to use aws2, but you’ll need to set aws2 usage in kube config file as described here.

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In this article, we will explore the development of an IRIS client for consuming RESTful API services that have been developed to the OData API standard.

We will be exploring a number of built-in IRIS libraries for making HTTP requests, reading and writing to JSON payloads, and seeing how we can use them in combination to build a generic client adaptor for OData. We will also explore the new JSON adapter for deserializing JSON into persistent objects.

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Most of us are more or less familiar with Docker. Those who use it like it for the way it lets us easily deploy almost any application, play with it, break something and then restore the application with a simple restart of the Docker container.

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Hi Developers!

As discussed in previous parts of Package Manager stories to turn your IRIS application into a deployable package you just need to introduce the module.xml file into the root folder of the repository and describe all the resources.

I’m pleased to introduce you to a new project template on Open Exchange which contains examples of how to make different types of resources of your InterSystems IRIS application a part of the ObjectScript package and so make the deployable ObjectSctipt package.

Let's see how you can describe your application resources using this template project as an example.

See the details below.

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I am looking foi an API to retrieve one namespace´s default web application name. We have use some code to setup links to event log/mesage trace for monitoring emails. In perticular we did this with ensemble where the default csp webapplication name always is something like csp/<namespace/. Anyway when it comes to a healthshare installation the default path seems to be csp/healthshare/<namespace>.

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The %Net.SSH.Session class lets you connect to servers using SSH. It's most commonly used with SFTP, especially in the FTP inbound and outbound adaptors.

In this article, I'm going to give a quick example of how to connect to an SSH server using the class, describe your options for authenticating, and how to debug when things go wrong.

Here's an example of making the connection:

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