Question Jack Huser · Oct 25, 2022

Security on TrakCare's Apache for CORS Policy

Hi everyone,

I have an issue when calling Trakcare's webservices using a web application.

The issue is that, the browser is blocking the queries because of the CORS Policy.

In fact, the browser is sending a first HTTP query OPTIONS called "preflight" (in Chrome's developers tools) and Apache server answers with no CORS Control Origin in Header (CORS header ‘Access-Control-Allow-Origin’ missing). So the query is blocked and does not reach the Webservices server (IRIS Interoperability).

#TrakCare #Red Hat Enterprise Linux (RHEL) #System Administration
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Article Jack Huser · Sep 13, 2021 6m read

Use $system.external Interface for Python

Since I saw many posts on Developer Community related to Python, and the very good articles and application written by @Eduard Lebedyuk I was wondering: "As a Object Script developer, why would I want to use an other  language in Object Script? If I ever need to execute something in Object Script, I would do it in Object Script!".

I thought those functionalities to use other languages in Object Script were made only for other languages developers who have to write Object Script code.

Recently I had to parse a huge CSV file : 1.7Gb and more than 5 millions lines.

#InterSystems IRIS #ObjectScript #Python
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Discussion Jack Huser · Jul 23, 2021

Performance when constructing a comma separated string

The goal is to construct a comma separated string, using a loop but the same way $listtostring(var,",") would do (i.e. "a,b,c,d,e,f,g,h" without starting or ending comma).

What is the best way to do it, concerning the readability of the code and its performances?

To do so, there are more than 5 methods, but in this example we will test 4 :

1) using a "if" in the loop

set str=""
for ... {
    if str'="" { set str = str_"," }
    set str=str_myval
}

2) using a set

set (str,sep)=""
for
#Caché #ObjectScript
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Question Jack Huser · Feb 10, 2021

Execute shell script command line with argument exceeding 256 chars

Hello everyone,

I have an issue with using "Open" function.

My goal is to execute a shell script with parameters like as:

/trak/FRXX/config/shells/transportIDE.sh "login|password|NOMUSUEL|PRENOM|NOMDENAISSANCE|1234567891320|199999999999999999999999|09%2099%2099%2099%2099|31%2F12%2F1999|242%20IMPASSE%20DES%20MACHINCHOOOOOOOOSE%20||99999|SAINT%20BIDULETRUC%20DE%20MACHINCHOSE|isc%24jhu|123456|123456798"" 2>&1"

But when some parameters are too long, I have a <NAMEADD> error.

#Caché #Code Snippet #Coding Guidelines
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