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Index

Part 1

  • Introducing Flask: a quick review of the Flask Docs, where you will find all the information you need for this tutorial;
  • Connecting to InterSystems IRIS: a detailed step-by-step of how to use SQLAlchemy to connect to an IRIS instance;

Part 2

  • A discussion about this kind of implementation: why we should use it and situations where it is applicable.
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Web Crawling is a technique used to extract root and related content (HTML, Videos, Images, etc.) from websites to your local disk. This is allows you apply NLP to analyze the content and get important insights. This article detail how to do web crawling and NLP.

To do web crawling you can choose a tool in Java or Python. In my case I'm using Crawler4J. (https://github.com/yasserg/crawler4j).

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Question
· Oct 21, 2019
How to send a file via JSON

I have a text file that I pick up in a Business Service and need to send it to our vendor via JSON. I assumed (probably wrongly) that I could just create a RESTful Business Operation, plug in the server IP and URL as well as complete some of the other fields on the BO to send the file. When I do this, I get the following error:

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This tells me that there is no timezone offset on this table/field:

Select TOP 1 GETDATE() as Now, TimeCreated FROM ens.messageheader ORDER BY TimeCreated DESC;
Now TimeCreated
------------------- -------------------
2016-10-18 16:16:49 2016-10-18 16:16:31
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Question
· Apr 4, 2019
Application ACK not working

I trying to get ACK back from the destination to the sending system.

I configured the Business Services to Ack Mode Application but sending system is getting Ensemble generated ACK [7] not destination ACK [9].

This is Ensemble 2018.1.1.312.0.

Ultimately I would like a NACK back when I have a Business Rule that blocks a messages from sending to Business Operations but currently [5] is an ACK |AA

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Question
· Nov 18, 2019
Cache vs IRIS install

Has the Cache install been replaced with IRIS? Sorry if this is a silly question. I remember downloading Cache before and using Cache studio. I can't seem to find a download for that anymore, just IRIS? I did grab that and I'm able to connect Studio to what I need.

If there is still a Cache download, where can I find it?

Thanks!

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Hello everyone,

Im just wondering if there is any possibility to "Listen" to a cache DB? We have our cache DB somewhere else provided by a different company, we are provided the interface to connect to that cache DB so we can extract the cache DB every night.

Im just curious if theres a way to "listen" to the cache DB, so if theres any changes on the table in the cache DB, I could make a trigger to extract the table again.

I know i could just set my ETL every hour or so... but that would extract all the tables in cache DB.

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When we are at the starting stage of BI project development, we must remember that it is crucial to select the right tool for its implementation. Today we want to show you how one of the principal functionality of dashboards is implemented in different BI systems. Let's talk about drill down from both points of view: the dashboard development, and the convenience and clarity for the end user. We will touch on the applications of this technology in IRIS BI, Power BI and Tableau.

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Hi All,

It must be the groundhog days but I can't solve something that I know I've done before. I have a legacy CSP page on a version of Cache without JSON and just pure Cache.

I need a CSP page that takes a .xlsx file, manipulates the file (in COS) and then returns a new manipulated file.

My CSP Page gets the file fine, the problem is then returning the response with the new file as an attachment. I don't want to pipe to a new csp page with a different content-type so was sure I can set %response.Headers etc to get the reply stream I want.

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I am currently working on an Upgrade to HealthShare 2019.1.1. As described in the steps once the upgrade was complete to run $system.OBJ.Upgrade(). When I run $system.OBJ.Upgrade() , it is not finding any classes to update. However I am getting an Error 5116 on one of my Productions...

Class dictionary version for '%1' is out of date, please run upgrade utility $system.OBJ.Upgrade()

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1.Background

1.1 I met a few project that their interface servers were crashed. Cutoms wanted resume server as fast as we can. their servers are running at lan,and they can't use git,there are some namesapce in the server running different service,and usualy there is only one server.

1.2 In the message,it has property in type of characterstream,as you know,the message search page doesn't support filtering with property of characterstream,so it's so hard to find the messge you want.

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Article
· Jun 10, 2019 2m read
GitHub now supports ObjectScript

Hey developers,

I have great news for you. A few days ago, GitHub was updated with the latest version of linguist project, which is being used to recognize source code types in repositories. It helps to determine which programming language had been used in every file of the repository. Repository statistics section shows the results of this module work.

Also, you can search across all available GitHub repositories for any chosen language.

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Question
· Mar 2, 2019
Parent/Child Vs One/Many

Hi

Just curious to know about the pros and cons of Parent/Child Vs One/Many.

We do use a bit of both.
One big reason we use Parent child is we feel if we delete one global, it gets rid of all child data too and all parent child data is stored in one global. Much easier to manage.

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Hello

I made for fun a bash script that creates csv files from a %GOGEN exported file.
%GOGEN, the utility for exporting globals for Cache 5.xx

First I thought it would be very simply with bash, but ...
- if I want a header in the csv file
- if you export with GOGEN more globals together not only one
- if I want a csv file for every global/indexes has the global ..

The simply bash script goes up 100 lines of code. If I will start again with this, I would use Python or Go, not bash.

Example:

For a EXPORTED.GLO file

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Question
· Jan 3, 2019
n00b questions

Hello,

I have some beginner questions as I am working through the InterSystems Cache learning path:

- Where I work, we us Cache, but we often learning about and train on MUMPS. No one really talks about or mentions MUMPS here, but my understanding is that ObjectScript is basically MUMPS plus whatever new things InterSystems put on top of it. Is that a fair assessment?

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Article
· Feb 8, 2021 2m read
Websocket Client Embedded Python

This is a demo to make use of a simple WebSocket Client with Embedded Python in IRIS.

How to Test it

  • Run an Iris Session in Docker
  • Select your WebSocket Echo Server
  • Enter the text you want to send or generate it
  • Send it and see the result
$ docker-compose exec iris iris session iris "##class(rccpy.WSockPy).Run()"

*** Welcome to WebSocket Embedded Python Demo ***

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