What is JWT?

JWT (JSON Web Token) is an open standard (RFC 7519) that offers a lightweight, compact, and self-contained method for securely transmitting information between two parties. It is commonly used in web applications for authentication, authorization, and information exchange.

A JWT is typically composed of three parts:

1. JOSE (JSON Object Signing and Encryption) Header
2. Payload
3. Signature

These parts are encoded in Base64Url format and concatenated with dots (.) separating them.

In this article, exceptions are covered.

Working with Exceptions

Instead of returning a %Status response, you can raise and throw an Exception. You are then responsible for catching the exception and validating it. IRIS provides five main classes to handle exceptions effectively. Additionally, you can create custom exception class definition based on your needs.

These exceptions are different from %Status, so you can't directly/efficiently use the exception object with $SYSTEM.OBJ.DisplayError() or $SYSTEM.Status.DisplayError()

You may encounter errors during any point of program execution, and there are several ways to raise and handle these exceptions. In this article, we'll explore how exceptions are handled efficiently in IRIS.

One of the most commonly used return types is %Status, which is used by methods to indicate success or failure. Let's begin by discussing %Status values.

Working with %Status

The %Status return type is used to represent errors or success. Many system methods return %Status when an error occurs.

Hello Community,

Is it possible to track or determine where the global variable was set (routine or class) in a form of like label+offset^routine?

Regards,

Ashok

I tried executing the SQL JSON_TABLE query with large JSON string(more than 200000 characters) and I got the below error. I'm curious about this under the hood workflow and how does it reach reaches MAXSTRING.

 Thanks!

Hello Community,

Is there any option or log is available to identify who killed/terminated the running process? 

Thanks!

Hello Community,

Is there any way to permanently clear all the commands displayed in the line recall History. The :clear deletes all the commands in that particular process/recall buffer.

Thanks!

Hello Community,

Is there any built in methods available to generate the both HTTP message format(request/response) from %Net.HttpRequest and it's response. 

Thanks!

Hello Community,

I have a stream property which uses %Stream.GlobalCharacter and I set some dummy texts like "a1a2a3a4a5a6a7...."(more than 1024 characters) in to that stream and the stream values are not compressed. However, The streams are compressed If I use the Lorem ipsum is a dummy or placeholder text or other text "This is part four of a long memo." which length is greater than 1024 

I opened the stream object and confirmed the compress property is 0 for first entry and  1 for 2nd object

Class Samples.Strms Extends %Persistent
{
Property MyId As %String;
Property MyBioStrm As 

Hello Community,

We use $ZF(-1 synchronous call to generate the pdf files. Now I want to change to asynchronously. So, I use $ZF(-100 with "/ASYNC" function. I use "/ASYNC" directly write $ZF(-100,"/ASYNC","notepad.exe") in windows/linux it throws the <NOTOPEN> error, However If I use $ZF(-100,"/ASYNC /SHELL","notepad.exe") it opens the notepad without issues.

However, I execute the below in Linux system the file is not generated properly. But  $ZF(-2,"/ASYNC /SHELL", " /fop/fop -r -fo ""/grp1/tempXSL-FO.TT.12.xml"" -pdf ""/grp1/tempXSL-FO.TT.12.pdf"" 1>/dev/null 2>""/grp1/tempXSL-FO.TT.12.

In the previous article. Practices of class members and their execution within embedded Python. We will now turn our attention to the process of switching namespaces, accessing global variables , traversing and routine executions within embedded Python.

Before proceeding to the other functions. let us briefly review the execute function within the iris package. This function is exceptionally beneficial for executing the arbitrary ObjectScript functions and class invocation.

Hello Community,

In this article, I will outline and illustrate the process of implementing ObjectScript within embedded Python. This discussion will also reference other articles related to embedded Python, as well as address questions that have been beneficial to my learning journey.

As you may know, the integration of Python features within IRIS has been possible for quite some time. This article will focus on how to seamlessly incorporate ObjectScript with embedded Python.

Essentially, embedded Python serves as an extension that allows for independent writing and execution.

In the preceding section, we explored the installation process and initiated the writing of the IRIS in native Python. We will now proceed to examine global traversal and engage with IRIS class objects.

 get: this function is used to get values from the traversal node.

def traversal_firstlevel_subscript():
    """
    ^mygbl(235)="test66,62" and ^mygbl(912)="test118,78"
    """
    for  i in irispy.node('^mygbl'):
        print(i, gbl_node.

Hello Community,

This article aims to walk you through the process of setting up and utilizing the Flexible Python Runtime Feature for embedded Python. Prior to version 2024.2, Intersystems IRIS installer included a preinstalled version of Python, You can find the Python libraries and application files located in the \lib\python directory within your IRIS installation folder (for example, C:\InterSystems\IRIS20242\lib\python).

However, starting with version 2024.2, the IRIS installer no longer includes Python installation by default.

Hello Community,

I got the PROTECT error while running functions. But, I could able to call the classmethods and methods in class definition with classMethodObject, classMethodValue etc.. from python. without any errors
python code

irispy.functionString('fnString','IRISPython',14)
irispy.function('fnString','IRISPython',14)

raise RuntimeError(error_message)
RuntimeError: <PROTECT> *Function not allowed

IRISPython.mac
fnString(fn1) public {
  quit "Hello "_fn1
}

​

Hello Community

I have previously experimented with embedded Python in IRIS; however, I have not yet had the opportunity to implement IRIS using native Python. In this article, I aim to outline the steps I took to begin learning and implementing IRIS within the Python source. I would also like thank to @Guillaume Rongier and @LuisAngel.PérezRamos for their help in resolving the issues I encountered during my recent PIP installation of IRIS in Python, which ultimately enabled it to function properly.

Let's begin to write IRIS in python.

Hello community,

How to install the iris  package installer for Python (pip) in python and import iris package in python source code. 

import iris
class Solution():
    iris.connection()

thanks!

Hello Community,

How to convert the IRIS %DynamicArray into python list. I got " <THROW>TestDyncArray+1^MyLearn.Pyth.NewClass1.1 *%Exception.PythonException <PYTHON EXCEPTION> 246 <class 'AttributeError'>: <unknown exception data>" error when passing array values to python class.

ClassMethod TestDyncArray()
{
	Do ..DyncArrayInPy([1,2,3,4])
}

ClassMethod DyncArrayInPy(numbers) [ Language = python ]
{
	import iris
	print(type(numbers)) ;<class 'iris.%Library.DynamicArray'> need to be a <class 'list'>
	for num in numbers:
		print(num)
}

Thanks!

Hello Community,

As per the Build index documentation "If you use BUILD INDEX on a live system, the index is temporarily labeled as not selectable, meaning that queries cannot use the index while it is being built. Note that this will impact the performance of queries that use the index." Is this  hiding/not selectable is only applicable for BUILD INDEX or it supports class level %BuildIndices as well. as far as my analysis both syntax setting this setting  SetMapSelectability. 

Thanks!

Hello Community,

I've seen two cached queries are generated while executing a query. So, Why the additional query is generated and what is the use of it. 

Hello Community,

I'm unable see the FHIR SQL builder /csp/fhirsql and /csp/fhirsql/api/ui endpoints in web application to access the FHIR SQL builder. I'm using community edition 2024.1 and it contains the "FHIR SQL Builder".

Hello Community,

I've configured a FHIR Server in FHIR Configuration "/csp/healthshare/learn1/fhir/r4 " and I enabled a JWT Authentication for this web application. I've invoked this url http://localhost:52773/csp/healthshare/learn1/fhir/r4/login with basic auth get the JWT token. Now I use the access token as a "Bearer" for GET the patient resource. But I got 401Unauthorized error. Anyway I can get the patient resource with basic auth. I tired assign with %ALL role for testing as well. Did I miss any additional configuration in "FHIR Server Configuration"

Hello Community

I'm unable to view the  HL7 message field in the Business rules of the latest version of IRIS while tying HL7. syntax

ex: HL7.{PID:PatientName().givenname}

Latest Rule editor

Old Rule editor

Hello Community,

I'm trying to execute the FHIR R4 profile validation and got the below error. How to fix this below error

http://localhost:52773/csp/healthshare/learn1/fhir/r4/Patient/$validate?profile=http://examples.com/fhir/StructureDefinition/aktestpatient|4.0.1

The InterSystems documentation new look is pretty awesome. The integrated pervious release documentation are single page is really useful.

Dark mode and collapse the side bar option is cool!

Hello Community,

I'm trying to load a file by execute this LOAD DATA SQL command in both studio and SQL-SMP I got the below error.

///sample executed queries
ClassMethod ExecutedQueries()
{
    /// executed queries - 1
 LOAD DATA FROM FILE 'C:\\FHIRFILE\mycont.csv' COLUMNS ( C_COUNTRY VARCHAR ( 40 ) , C_CODE VARCHAR ( 20 ) ) INTO SAMPLE . COUNTRIES ( COUNTRY , CODE ) VALUES ( C_COUNTRY , C_CODE )
    /// executed queries - 2
LOAD DATA FROM FILE 'C:\FHIRFILE\mycont.csv' INTO SAMPLE . COUNTRIES ( COUNTRY , CODE )
    
}

sample data

Hello Community,

I'm executing the same query with same  column name but in different case. An unique cached query generated while query executed first time. The query preparser only normalize the keywords and send to the SQL engine generates the Hash. Eventually use the cached query next use.

Now my question, The hash values are same for both of the queries. Then why it creates two cached queries.

Query1: select * from MyLearn.Test where Name['Kev1'

Query2: select * from MyLearn.Test where NamE['Kev1'

Thanks!

Hello Community,

I just go through the IRIS latest documentation and I found the openAPI property is  "x-ISC_DispatchParent" was mentioned in sample swagger and its the actual property used in spec-first approach. However in some place the property was mentioned like "x-ISC_DispParent"  and bit discrepant
/confused. So, Just want to ensure Is this is an issue in documentation?

Thanks.

Ashok.

Hello Community,

The process private global doesn't impact the $storage. But, Why the value has decreases at first time of initialization. 

Just want to ensure about it.

Hello Community,

Generally we could insert the stream object through SQL for stream properties and insert the list values for list of %String property. So, Is there any way to achieve this insert for the list of objects property( ex: Property CodeTable As list of Sample.CodeTable) via SQL?