Hi developers!
How do you debug implementation code in .impl classes of REST.API in InterSystems IRIS?
Especially if you don't have access to globals, so no things like:
Set^AAA="here we are"not possible in this case.
Suppose I have the following signature of the REST.API method called as POST and containing JSON. :
Hi Developers!
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Hi folks!
Sometimes, when designing a class method and feeding it with more and more useful features, very soon the number of parameters can reach 10 and even more.
It becomes pretty difficult for users of useful methods to remember the position of the important parameter, and it is very easy to misuse the position and transfer the wrong value to the wrong parameter.
Here is an example of such a method (I asked GPT to create a method with 20 params):
Hi folks!
It is very easy to import CSV data into IRIS. But what if we want to preserve the original IDs in CSV?
Recently I came across with the situation when I needed to import two csv's into IRIS which were linked by one column referencing to another csv's col: a typical Foreign Key and Primary Key situation, where csv1 contains this column as Primary Key, and csv2 as Foreign key with id's related to csv1.
The image is generated by ChatGPT so don't blame it - it tried its best to generate countries as primary keys with countries.csv-cities.csv relationship :)
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See the details below.
Hi noble devs!
Just building a simple frontend->JSON->IRIS backend story, and figured that IRIS while importing via %JSON.Adaptor wants JSON fields to match property names, meaning even should match the case. Like:
{ name: "John",
surname: "Doe"}will have issues while saving the dynamic object to a class Sample.Person with:
Class Sample.Person Extends (%Persistent, %JSON.Adaptor)
{
Property Name: %Sting;Property Surname: %String;
}As soon as the case is not the same...
Hi developers. Just want to share with you a finding that might save you a few important minutes of your developer life with InterSystems IRIS.
But!
It should work; you deployed the REST API correctly, and everything is just in place.
What can go wrong?
Hi fellow developers!
Curious if you guys use CreatedAt and LastUpdated properties in your classes?
Created to stamp when the record was created and LastUpdated when it was last updated. Where it can be useful - almost everywhere )) I find it convenient in records sorting (e.g. by creation or last update), in sync (with other systems), and so on, for better analytics.
Do you use it all the time for all the classes?
If don't, why not? What do you use instead?
What property type do you use - %TimeStamp? %DateTime?
Hi IRIS experts!
I have a parameter in a class that stores a global name:
Parameter GlobalName = "^AGlobal";
then I'm trying to call it as:
set gn=$name(..#GlobalName)
to use it later as:
set @gn@("index")="value"
But! I'm having syntax at set gn=$name(..#GlobalName)
What am I doing wrong?
Hi Developers!
We are happy to present the bonuses page for the applications submitted to the FHIR and Digital Health Interoperability Contest 2025!
See the results below.
Hi Developers!
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Hi developers!
Observing the avalanche of AI-driven and vibe-coding developer tools that have been appearing lately almost every month with more and more exciting dev features, I was puzzled whether it is possible to leverage it with InterSystems IRIS. At least to build a frontend. And the answer - yes! At least with the approach I followed.
Here is my recipe to prompt the UI vs InterSystems IRIS Backend:
Hi developers!
While developing web apps the security practice I consider safe and convenient is to create a special Role (e.g. equal application name) which contains security resources which application will need (SQL tables, priviledges, database access, etc) and assign it to the Web Application.
So the user gets this role once it loggs in to the application (via password, no password or delegated).
Convenient, right?
So, the question is, when I deploy the app as an IPM module what should I put as a database access?
Hi devs!
What is the best way to return JSON in IRIS for a GET request in a REST app?
This is how I do it now:
Hi developers!
This will be a very short article as in April 2025 with Lovable and other Prompt-to-UI tools it becomes possible to build the frontend with prompting. Even to the folks like me who is not familiar with modern UI techics at all.
Well, I know at least the words javascript, typescript and ReactJS, so in this very short article we will be building the ReactJS UI to InterSystems FHIR server with Lovable.ai.
Let's go!
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.
To VSCode experts - see the screenshot. When right-click on a method with intentions to proceed to the source code:
I am always confused about what to choose: declaration or definition. What is the difference?
Hi Developers!
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See the results below.
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Here're the technology bonuses for the InterSystems AI Programming Contest: Vector Search, GenAI and AI Agents that will give you extra points in the voting:
Hi colleagues!
Often, while developing a frontend app or any other communication vs REST API, it is worth having a Swagger UI - a test UI for the REST API that follows Open API 2.0 spec. Usually, it is quite a handful as it lets have quick manual tests vs REST API and its responses and the data inside.
Recently I've introduced the Swagger support to the InterSystems IRIS FHIR template for FHIR R4 API:
How to get it working.
Hi, colleagues!
As you can see the new topic of the programming contest - AI Agents.
The topic was over-hyped recently on the Internet and has different meanings. You might get curious about what we mean by AI agents in regard to the InterSystems programming contest.
Hi colleagues!
Yet another time I figured that there is no super-simple way to display error from %Status variable, but I need it relatively often in a terminal.
Yes, I know about $$$ Macro, but they are not superhelpful in a terminal.
My usual behavior is to try to remember by heart or copy from somewhere the formula:
USER>w $System.Status.DisplayError(st)
Hi folks!
I'm building a very simple REST API.
But before testing it via a Web Server what I want to make sure that REST API methods work in principle.
Is it an easy way to "fake" the web-server request and get a result e.g. of the method with signature like that?
ClassMethod GetAllRecords(pRequest As %CSP.Request, pResponse As %CSP.Response) As %Status
e.g. calling it in Terminal?
Hi Folks!
Have a very simple question, I hope :)
How can I make sure that user 'John' is already created in the IRIS system?
Preferabbly via SQL?
thanks a lot!
Hi fellow developers in InterSystems IRIS!
I'm often being asked, especially related to technical bonuses we encourage for every Open Exchange contest why do we constantly give bonuses for Docker, IPM and ObjectScript Quality pass.
In fact, this is very easy to answer.
Hi Developers!
We are happy to present the bonuses page for the applications submitted to the InterSystems "Bringing Ideas to Reality" 2024 Contest!
See the results below.
Here are the technology bonuses for the InterSystems "Bringing Ideas to Reality" Contest 2024 that will give you extra points in the voting:
See the details below.
Hi Developers!
We are happy to present the bonuses page for the applications submitted to the DevTools Contest 2024!
Here are the technology bonuses for the InterSystems Developer Tools Contest 2024 that will give you extra points in the voting: