REST API (Representational State Transfer Application Programming Interface) is a standardized way for web applications to communicate with each other using HTTP methods like GET, POST, PUT, DELETE, etc. It's designed around resources, which can be anything from a user to a file. Each resource is identified by a unique URL, and interactions with these resources are stateless, meaning each request from a client to a server must contain all the information needed to understand and process the request.

Dear community, I have a confession to make. I have not gotten over Zen yet. Alas, all good things must come to an EOF, so I am currently learning about Angular. I am working on proving to myself that with the right back end and Angular components, I can deliver to myself and my team a very Zen-like experience in this environment. Since this is my first attempt, here is a fair warning: I will be providing some rather large code samples before discussing them. Please warm up your mouse and hand for extensive upcoming scrolling!

I am making a FHIR request against Epic, in when I get the Response back using "fromDao" I am extracting the stream into HS.FHIRModel.R4.Patient. However, the patient's name comes back as name within a list that references HS.FHIRModel.R4.SeqOfHumanName.

• How do I extract the name from HS.FHIRModel.R4.SeqOfHumanName?
• Do I have to then do another "fromDao" to pull the list into string format?
• How do I navigate around the lists that are in a FHIRModel response, to extract the string values?

For my intern project, I am building a Flask REST API backend. My goal is to host it on InterSystems IRIS using the WSGI interface. This is a relatively new approach and is currently only being used in a handful of projects such as AskMe. To help others get started, I decided to write this article to simplify the process.

Creating a Basic Flask App

First, let’s create a minimal Flask application. Here is the code:

from flask import Flask
from flask_cors import CORS

app = Flask(__name__)
CORS(app)

@app.route('/test')
def test():
    return "Test"
if __name__ == "__main__":
    app.

Hi Community,

Enjoy the new video on InterSystems Developers YouTube:

⏯  InterSystems IRIS: Easy to Consume and Easy to Use @ Global Summit 2024

Hi Developers!

There is a free ObjectScriptQuality tool for ObjectScript developers who upload solutions on GitHub. This tool helps developers validate ObjectScript code using a variety of rules, based on common code errors.

There are currently 16 rules in this tool, but there are definitely many more rules to consider when testing ObjectScript code.

Could you suggest any other rules to add to this tool?

Note: You can submit it as an idea on the InterSystems Ideas for the 2nd Idea-A-Thon contest.

#InterSystems Demo Games entry

⏯️ Care Compass – InterSystems IRIS powered RAG AI assistant for Care Managers

Care Compass is a prototype AI assistant that helps caseworkers prioritize clients by analyzing clinical and social data. Using Retrieval Augmented Generation (RAG) and large language models, it generates narrative risk summaries, calculates dynamic risk scores, and recommends next steps. The goal is to reduce preventable ER visits and support early, informed interventions.

Presenters:
🗣 @Brad Nissenbaum, Sales Engineer, InterSystems
🗣 @Andrew Wardly, Sales Engineer, InterSystems
🗣 @Fan Ji, Solution Developer, InterSystems
🗣 @Lynn Wu, Sales Engineer, InterSystems

☤ Care 🩺 Compass 🧭 - Proof-of-Concept - Demo Games Contest Entry

Introducing Care Compass: AI-Powered Case Prioritization for Human Services

In today’s healthcare and social services landscape, caseworkers face overwhelming challenges. High caseloads, fragmented systems, and disconnected data often lead to missed opportunities to intervene early and effectively. This results in worker burnout and preventable emergency room visits, which are both costly and avoidable.

Care Compass was created to change that.

My IRIS Haiku:

Store all things with care

Interop'rability

IRIS unites us

Any plans for ODBC 3.8 support?

Hello,

I'm trying to connect a Python backend application to an InterSystems IRIS Community Edition instance running in a Docker container on an AWS EC2 instance. I'm facing persistent connection issues and an SSL Error despite the Superserver apparently having SSL disabled. I'm hoping for some insight into what might be causing this contradictory behavior.

My Setup:

• InterSystems IRIS: Community Edition (Docker image intersystems/iris-community:2025.1)
• Deployment: AWS EC2 (Ubuntu) instance.
• Port Mapping: Host port 9091 mapped to container port 1972 (Superserver).

Hi Community,

Enjoy the new video on InterSystems Developers YouTube:

⏯ Discovering InterSystems Products - A High Level Overview @ Global Summit 2024

InterSystems IRIS 2024 recently introduced the vector types. This addition empowers developers to work with vector search, enabling efficient similarity searches, clustering, and a range of other applications. In this article, we will delve into the intricacies of vector types, explore their applications, and provide practical examples to guide your implementation.

At its essence, a vector type is a structured collection of numerical values arranged in a predefined order. These values serve to represent different attributes, features, or characteristics of an object.

Hello my friends,

I have a problem with logi report, 

in my store procedure,  I create code like this?

$ListToString(%DLIST(DISTINCT (ARCIM_Desc)),'<br/>') as "ARCIM_Desc", -> this is the problem

$ListToString(%DLIST(DISTINCT (MRDIA_ICDCode_DR)),'<br/>') as "MRDIA_ICDCode_DR", -> it's works fine

as you see there's a <br/> in the display of the report

I have no idea about this, maybe someone can help me fix this problem ?

Thank You

Best Regards,

Steven Henry

I recently started trying out Python in IRIS, but now I get this message repeated over and over again:

^Sources is not setup so hooks will not work

No idea where this came from and how it started. Any suggestions?

Hello my friends,

I have a problem with Objectscript, why the value of address become like this ?

everything works fine except the Address,

this is my code, do I need something to make this into real address ? should I put something in my code ? 

 set paper=obj.PAADMPAPMIDR.PAPMIPAPERDR

            if '$isobject(paper) continue

            set Address=paper.PAPERStName

thank you for your help

Best Regards,

Steven Henry

Hello my friends,

I have a bit problem with date format, I need to display like this DD-MM-YYYY

I've put the objectscript like this : set DOB=$zd(paper.PAPERDob,15)  

and the result is 

Why It cannot show the full year, I mean why 99 or 95 why not 1999 or 1995 ? 

Thank You

Best Regards,

Steven Henry

Hi,

If I test the Native api for Node.js from the documentation, I noticed (if I'm correct) all methods and calls are synchronous. By default due to the nature of Node.js, there is only one thread of execution and normally  all JavaScript methods and all calls should be asynchronous and use either a callback function (the "old way") or promises or the async/await contruct to return their result, e.g.:

• myFunction(params, callbackFunction(response))
• myFunction(params).

Hello community,
Is there any built in class method to get the HTTP request and response message format from the %request and %response object. Similar to how a Web Gateway's HTTP Trace Facility captures HTTP messages.

Thanks!

I'm trying to gather more data for one of my namespaces so I can do some analysis. However when I run .BuildIndex() nothing populates in the resulting SQL table. I've tried deleting the class and reimporting and compiling and still nothing. I feel like I'm doing something OBVIOUS that's wrong but I can't quite figure out what it is. Here's what I'm doing (Customer name redacted)
 

Class CUST***.System.Cerner.Hl7.SearchTable Extends EnsLib.HL7.SearchTable

{



Parameter DOCCLASS = "EnsLib.HL7.

Hello Community,

I got below error while connecting the IRIS studio. However, executes Write ##class(%File).DirectoryExists("c:\intersystems\irishealthcomm\mgr\hscustom")returns true and terminal and SMP works

thanks!

Hey Developers,

Enjoy the new video on InterSystems Developers YouTube from our Tech Video Challenge:

⏯ Message integration with Google Chat

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?

Do not let the title of this article confuse you; we are not planning to take the InterSystems staff out to a fine Italian restaurant. Instead, this article will cover the principles of working with date and time data types in IRIS. When we use these data types, we should be aware of three different conversion issues:

1. Converting between internal and ODBC formats.
2. Converting between local time, UTC, and Posix time.
3. Converting to and from various date display formats.

Developing with InterSystems Objects and SQL – Virtual July 28-August 1, 2025

• This 5-day course teaches programmers how to use the tools and techniques within the InterSystems® development environment.
• Students develop a database application using object-oriented design, building different types of IRIS classes.
  
  • They learn how to store and retrieve data using Objects or SQL, and decide which approach is best for different use cases.

I have built a REST operation to submit a JSON Request Body, and in the JSON Response Object, I need to pull out certain values like pureID, portalURL, and under the identifiers array the ClassifiedID that has a term."en_US" = "Scopus Author ID"

{
    "count": 1,
    "pageInformation": {
        "offset": 0,
        "size": 10
    },
    "items": [
        {
            "pureId": 0000000000000,
            "uuid": "xxxxxxxxxxxxxxxxxxxxx",
            "createdBy": "root",
            "createdDate": "2024-11-18T22:01:07.

In IRIS, every time a request need to be processed, a specific IRIS process (IRISDB.EXE) need to be assigned to handle that request.

If there is no spare IRIS process at that time, process will need to be created (and later destroyed). On some Windows systems (especially with security/antimalware solutions being active) creating new processes can be slow, which can results in delays during peak times (due to inrush of requests).

1. I like the Application Error Log functionality a lot. However, it becomes time consuming to inspect it date by date and directory by directory on a multidirectory server. Ideally, I would use an existing error class to write a custom error report by date, selected namespaces, etc. Does such a system class actually exist? Not that I found. The detail level on the screenshot below is enough.  
2. Some Application Error Logs go back a couple of years and load for a long while. Is there any programmatic way to clean them?

is there a way to include a pdf in a zen report in  a stream field?

something somewhat similar to what is done for images

Hi Community,

Watch this video to learn about Shift's new Data Platform architecture, combined with the InterSystems IRIS roadmap for data management:  

⏯ Shift Data Platform: The IRIS Roadmap Applied @ Global Summit 2024