Integrating frontend React applications with backend services like IRIS database via REST APIs can be a powerful way to build robust web applications. However, one common hurdle developers often encounter is the Cross-Origin Resource Sharing (CORS) issue, which can prevent the frontend from accessing resources on the backend due to security restrictions enforced by web browsers. In this article, we'll explore how to tackle CORS issues when integrating React web apps with IRIS backend services.

I am working on JSON and want to be prepared to handle large Objects. I try this code:

ClassMethod MaxLen() As %Status

{

set longStr=""

for i=1:1:$SYSTEM.SYS.MaxLocalLength() { set longStr = longStr_"x" }

write "Maximum string length = "_$LENGTH(longStr)

;

set longObject = {"a":(longStr),"b":(longStr)}

set file=##class(%File).%New("/tmp/longObjectFile.txt")

do file.Open("WSN")

do longObject.%ToJSON(file)

do file.Close()

;

do file.Open("RS")

Hi,

I would like to ask whether there is some option to stop auto-formatting when I compile. The code is sometimes well formatted but the auto-formatter does not work correctly in some situations. I am talking about the compilation in the Studio editor in this image, not about Visual Studio Code.

Thank you in advance,

Alin C Soare.

Hello. I was asked to base64-encode files such as Word documents (which contain images) and then post them to a Jira server. I found code to base64 encode a file here:

https://community.intersystems.com/post/encoding-base64-stream-chunk-siz...

It seemed to work, but when someone tried to open the Word document, the images inside could not be displayed.

In this article we are going to see how we can use the WhatsApp instant messaging service from InterSystems IRIS to send messages to different recipients. To do this we must create and configure an account in Meta and configure a Business Operation to send the messages we want.

Let's look at each of these steps in more detail.

Setting up an account on Meta

This is possibly the most complicated point of the entire configuration, since we will have to configure a series of accounts until we can have the messaging functionality.

I am actually new to IRIS, and we are DevOps/PowerShell/Ansible team. We want to achieve certain administration tasks like updating Memory, Heap size, Lock size etc., in Management Portal through PowerShell. Is there any way i can achieve this without out logging in into Management portal. Off course, we have namespace, user id and password details. We have installed ODBC drive and able to update tables in the IRIS database.

InterSystems FAQ rubric

The procedure for uploading/downloading from an FTP server is as follows.

1. Upload the image file to the FTP server

In Index types, I can see "Extent Index", Please tell me in detail about it

Hello,

With my team, we're evaluating the different streams existing in order to find good pratices for our project using InterSystems IRIS. In doing so, we found that there exists different forms of the same stream with the %Stream.FileBinary and %Stream.FileBinaryGzip classes. We think that the %Stream.FileBinaryGzip takes less space to be stored, but is there other diferences between these two classes and what would you recomend to use ? Is it the same thing for %Stream.FileCharacter and %Stream.FileCharacterGzip ?

Thanks for your help,

Hy Friends,

I need some help, how to calculate date and time in different columns ?

Does Anyone could help me ?

Thank you

Best Regards,

Steven Henry

Collision Theory Confirmed

I would dearly love to avoid manually creating a SEF or XSD file to get the X12 832 (4010) schema into IRIS, but I have been hard pressed to find either downloadable resources or commercial options. The typical recommendation, edi-dev, seems to just do tooling that will help create SEF files, but no longer sells actual SEF files.

Anybody got any good resources that might have these schema files?

Thanks for any help!

Cordially,

Jonathan

Let's say I have an InterSystems IRIS instance with 6 Namespaces:

• Foo1
• Foo2
• Foo3
• Foo4
• Foo5
• Bar

And the number of Foo# namespaces can increase at any time for a number of reasons. I need to ensure that they all have identical configuration globals stored in a DB called CONFIG, so I do the following in my configuration file:

[Map.%ALL]
Global_SYS=%DEFAULTDB
Global_SYS("CommonConfig")=CONFIG
Global_SYS("CommonOtherSettings")=CONFIG
Global_SourceControl=CONFIG

Recently I wanted to get a list of all cached queries and their texts. Here's how to do that.

First create an SQL Procedure returning Cache Query text from a Cached Query routine name:

Class test.CQ
{

/// SELECT test.CQ_GetText()
ClassMethod GetText(routine As %String) As %String [ CodeMode = expression, SqlProc ]
{
##class(%SQLCatalog).GetCachedQueryInfo(routine)
}

}

And after that you can execute this query: