The "Ask Developer Community AI" tool is an excellent resource for studying for the certification. I asked it about each topic that will be covered in the test and the results are below.
Note: I classified each answer by the assertiveness that I consider as good, average and bad.

Note 2: The article has 4 parts, each one for an exam area.

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I am receiving a FHIR response bundle back with a resource of patient. Using fromDao, I attempted to take the stream and put it into FHIRModel.R4.Patient but it is not mapping correctly. When I attempt to take FHIRModel.R4.Patient and write it out using toString(), all I am seeing is the resource

{"resourceType":"Patient"}

so the response is not mapping correctly to FHIRModel.R4.Patient. How have others handled this? Do I need to translate it to an SDA since it does fit the model format?

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Hey Community,

Enjoy the new video on InterSystems Developers YouTube:

⏯ SMART on FHIR: OAuthServer

https://www.youtube.com/embed/rkOAGBY1yUw
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Have you ever needed to change an IP or port before deploying an interface to production? Needed to remove items from an export? What about modifying the value(s) in a lookup table before deploying? Have you wanted to disable an interface before deploying? What about adding a comment, category, or alert setting to an interface before deploying to production?

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Hi everyone! 👋
I’m excited to share the project I’ve submitted to the current InterSystems .Net, Java, Python, and JavaScript Contest — it’s called IRIStool and Data Manager, and you can find it on the InterSystems Open Exchange and on my GitHub page.

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Hi Community,

Let's meet at the online meetup with the winners of the InterSystems Developer Tools Contest! It's a great opportunity to chat with the InterSystems Experts team and our contestants.

Winners' demo included!

Date & Time: Friday, August 8, 11:30 am EDT | 5:30 pm CEST

https://www.youtube.com/embed/5_-6pHAXFJI?si=-vItyGfrjDHzdIMA
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Hi all,

I’m working on a data transformation in IRIS where I need to calculate the difference in hours between two timestamps stored as %TimeStamp.

Example:

Set startTime = "2024-07-12 08:30:00"
Set endTime = "2024-07-12 15:15:00"

I’d like to calculate the number of hours (with decimals, like 6.75) between them. What's the recommended way to do this in ObjectScript? I’ve seen examples using $ZDATETIME, but I’m not sure if that’s the cleanest approach.

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Question
· Mar 28, 2025
%NOCHECK for Objects

When batch inserting data into a table via SQL, I can use the %NOCHECK keyword to avoid checking foreign key integrity. This would be appropriate for cases when the inserted data has been verified by some external process.

However, when inserting via objects, I don't see a way to get the same behavior. Are there any workarounds that use objects for this?

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WSDL for a CDC vendor was provided with a URL using a custom socket (non 443). Everything generated fine, but when making calls to their https:// URL that has their custom port in the URL - no response comes back. The assumption is, their server isn't even processing the request, as Postman does using the custom https://path.to.server:NNNN port in the URL.

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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'

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Is there a generic process for "walking" the structure of a virtual document - eg an HL7 message (EnsLib.HL7.Message) or an XML document (EnsLib.EDI.XML.Document).

At least we'd want to be able to visit all "nodes" (HL7 fields or sub-fields, XML nodes) in the virtual document and be able to work out/generate the Property Path (so we could call "GetValueAt").

We can just about come up with something generic for HL7, since it only nests down to 4 levels within each segment, though we're using numeric Property Path's at that point rather than symbolic ones (MSH:1.3 etc).

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hey everyone,

we are new to InterSystems health share, we are running health connect in a cluster with primary, backup and dr nodes.

we kept noticing that web applications definitions aren't showing in the backup or dr node.

is that normail? would they show up after failover to backup node or cutover to dr node?

thanks

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Dear Community,

I've noticed that some of my friends and colleagues are using the Developer Community app on their Android devices. Could someone please help me with the exe file or guide me on how to get it?

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The 2025.1.2 and 2024.1.5 maintenance releases of InterSystems IRIS® data platform, InterSystems IRIS® for HealthTM, and HealthShare® Health Connect are now Generally Available (GA). These releases include the fixes for a number of recently issued alerts and advisories, including the following:

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Article
· Sep 22, 2025 2m read
Dashboard of database free space

Finishing my previous example for multiple IRIS instances, I tried
to compose a local single instance version. The step from the external
Python app to a version using embedded Python seemed to be obvious.
This was a wrong assumption, as some Python libraries just refused installation
into my local Windows-based environment.

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Question
· Aug 20, 2025
Enabling IPM across namespaces

I've been trying to set up a script I can run after installing an instance to enable IPM across all namespaces. I have been able to install IPM successfully using

set r = ##class(%Net.HttpRequest).%New(),
    r.Server="pm.community.intersystems.com",
    r.SSLConfiguration="ISC.FeatureTracker.SSL.Config" 
d r.Get("/packages/zpm/latest/installer"),
    $system.OBJ.LoadStream(r.HttpResponse.Data,"c")

and then running the zpm commands

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Hello All,

I have used github (outside of IRIS) for many many years and have no problem with it. Also used SVN and other source control systems.

I have a conceptual problem understanding the ISC github links and how they work via VSCode.

https://github.com/intersystems/git-source-control

Our server is on Linux.

What I've done:

1. On Linux Server - d ##class(SourceControl.Git.API).Configure()

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Hey Community!

We're excited to introduce a new way to interact with the Developer Community AI — you can now have a real conversation with it!

Instead of just asking one-off questions, you can chat with DC AI in a more natural, back-and-forth format. This way, whether you're exploring InterSystems technologies, debugging code, or learning something new, DC AI is here to help, just like a fellow developer.

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