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· May 13, 2021
Shout out to the Dev Community !

Hello All,

Just wanted to acknowledge the fact that this community has become a great resource for help. I have had many wonderful people helping me out with my questions in last couple of weeks. Thank you to all of you :)

Regards,

Utsavi

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Hi Developers!

This is the digest of new solutions and applications submitted to InterSystems OpenExchange in August 2019!

ToolBox-4-Iris by Richard Zimmermann

API for InterSystems IRIS with a collection of handy and useful tools

iris-history-monitor by Henrique Gonçalves Dias

IRIS History Monitor - monitoring visualization tool for InterSystems IRIS

Nested Set Model by Nikolay Soloviev

Nested Set Model implementation for ObjectScript

SOLID Design with ObjectScript by Sourabh Sethi

Training and Codeset of SOLID Design in ObjectScript

Samples-ObjectScript by Joel Solon

ObjectScript samples for use with the ObjectScript tutorial. Meant for use with InterSystems IRIS Data Platform.

Object Synchronization by Jose Tomas Salvador

Sample project to play with IRIS Object Synchronization feature

Https-Proxy-IRIS-Docker by Guillaume Rongier

Sample of an Https proxy for Intersystems Iris with docker

iris-webgateway-example by Dmitry Maslennikov

Example of containerised IRIS with separate Apache and WebGateway

iris-mirror-with-docker by Dmitry Maslennikov

Docker compose environment with demo IRIS configured with Mirroring

Fast & Informative WEB API/Proxy by Sourabh Sethi

Informative and Fast WEB API VIA ObjectScript and Ensemble/HealthShare

PivotSubscriptions by Peter Steiwer

Subscribe to Pivot Tables in InterSystems IRIS Business Intelligence to receive scheduled emails

ObjectScript Package Manager by Evgeny Shvarov

Package Manager for InterSystems IRIS

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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?

What is the best practice to have CreatedAt filled automatically during creation and LastUpdated on every successful save (guess it could be in %OnSave)?

Please share your experience /thoughts?

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We have a scenario where we use the best practice article of a BP and DTL to split up HL7 messages mainly ORUS

https://community.intersystems.com/post/splitting-oru-messages-using-obj...

It is really useful but we have this code in many places that we are trying to consolidate it in one place.

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RabbitMQ is a message broker that allows producers (those who send a data message) and consumers (those who receive a data message) to establish asynchronous, real-time, and high-performance massive data flows. RabbitMQ supports AMQP (Advanced Message Queuing Protocol), an open standard application layer protocol.
The main reasons to employ RabbitMQ include the following:

  • You can improve the performance of the applications using an asynchronous approach.
  • It lets you decouple and reduce dependencies between services, microservices, and applications with the help of a data message mediator, meaning that there is no need for producers and consumers of exchanged data to know each other.
  • It allows the long-running processing of sent data (with the results) to be delivered after utilizing a response queue.
  • It helps you migrate from monolithic to microservices, where microservices exchange data via Rabbit in a decoupled and asynchronous way.
  • It offers reliability and resilience by making it possible for messages to be stored and forwarded. A message can be delivered multiple times until it is processed.
  • Message queueing is the key to scaling your application. As the workload increases, you will only have to add more workers to handle the queues faster.
  • It works well with data streaming applications.
  • It is beneficial for IoT applications.
  • It is a must for Bots’ communication.

Open Exchange app
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Ok, I am attempting to clarify the required use of the RESIZE command, when you have a UNIVERSE or a UNIDATA DB attached to Cache. Traditional UNIVERSE / UNIDATA databases 'require' that hashed files be re-sized according to historic use, to prevent file overflow (aka. performance issues). It is not clear if that requirement is fully eliminated by attaching one of these databases to Cache. It is clear that, if you do not allocate 'enough' space on Cache for the database 'as a whole', that is a problem.

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Hey Developers,

Watch this video to learn how to use InterSystems IRIS Cloud IntegratedML:

⏯ InterSystems IRIS Cloud IntegratedML @ Global Summit 2022

https://www.youtube.com/embed/Q_FysO-_SJE
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Hi -- at a customer site we have 8 Access Gateways, with a couple of different load balancers that decide which projects go to which subset of AGs.

We're about to go live with a project that uses a subscription, and we have that subscription pointing to one of the AGs. What if that AG goes down? The project is dead until the AG is back up. The subscription forces us to pick an AG that's registered in the Gateway Registry -- I don't see a way to get a cluster or load balancer address in there.

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When posting content there's got to be a better way to insert a screen shot. Saving to a file and then uploading is very primative plus the content isn't display in-line as one would expect these days. I don't want to "view a document" I want to see the image in-line.

Confluence does a really good job with this. Can we emulate this behavior?

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There are numerous excellent tools available for testing your REST APIs, especially when they are live. Postman, various web browser extensions, and even custom ObjectScript written with %Net.HttpRequest objects can get the job done. However, it is often difficult to test just the REST API without inadvertently involving the authentication scheme, the web application configuration, or even network connectivity. Those are a lot of hoops to jump through just to test the code within your dispatch class. The good news is that if we take our time to understand the inner workings of the %CSP.REST class, we will find an alternative option suited for testing only the contents of the dispatch class. We can set up the request and response objects to invoke the methods directly.

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While starting with Intersystems IRIS or Cache, developers often encounter three core concepts: Dynamic Objects, Globals & Relational Table. Each has its role in building scalable and maintainable solutions. In this article, we'll walk through practical code examples, highlight best practices, and show how these concepts tie together.

1. Working with Dynamic Objects:

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Hello,

Is there a single ObjectScript operator or method to concatenate two %DynamicArrays?

I'm looking for something that will do the following:

set arr1 = [ 1, 2, 3 ]
set arr2 = [ 4, 5, 6 ]
set arrcombined = arr1.%Concatenate(arr2)

or 

set arrcombined arr1_arr2

With end result:

zw arrcombined
arr1=[1,2,3,4,5,6]  ; <DYNAMIC ARRAY>

I can iterate and %Pop over the 2nd array and %Push each popped entry to the 1st array, but I was looking for something more succinct.

Thanks in advance.

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Article
· Jan 28, 2024 3m read
Fhir-HepatitisC-Predict

Processing FHIR resources with FHIR SQL BUILDER to predict the probability of developing hepatitis C disease

With the development of technology, the medical industry is also constantly advancing, and humans often pay more attention to their own health,
By learning and processing datasets through computers, diseases can be predicted.

Pre condition: Ability to use FHIR and ML
Firstly, our dataset is obtained from kaggle and transformed into FHIR resources based on patient gender, age, ALP or ALT, and imported into the FHIR resource repository

Open Exchange app
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Question
· Jan 24, 2024
Request LDAP

Hello,

I need to make an LDAP query to retrieve information about a specific team of employees. I have a custom service that instantiates a message of type EnsLib.LDAP.Message.Search with a filter matching the search and redirects it to an operation of type EnsLib.LDAP.Operation.Standard. I didn't get any errors, but I didn't get any results either. So I created an operation that inherits from EnsLib.LDAP.Operation.Standard and I overloaded the method to retrieve something. I get this:

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Hi Community,

Immerse yourself in our fresh video on InterSystems Developers YouTube:

⏯ Data Fabric Demystified - Patterns and Examples @ Global Summit 2023

https://www.youtube.com/embed/7t7ntrAnQxY
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Question
· Dec 4, 2023
Custom Application Metric

I made a custom application metric, imported it to the USER namespace and used:

set status = ##class(SYS.Monitor.SAM.Config).Add.ApplicationClass("historymonitor.errorSensor", "USER")

to add it. When I do 'w status' it returns 1 so it is added but I still can't see the custom metric in the api/monitor/metrics endpoint. Even though I added %DB_USER in the application roles for api/monitor.

Does anyone know where the problem might be that the metrics endpoint still doesn't show my metric?

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Hey Developers,

Watch this video to learn how an InterSystems partner based in Ostfildern, Germany, made a simple switch to InterSystems IRIS and rolled it out to 2,500 end-users by using the in-place conversion:

⏯ Migrating to InterSystems IRIS Made Easy @ Global Summit 2023

https://www.youtube.com/embed/uK-g5nobLr8
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Hi there,

I want to use regex in my code, and I saw that the %Regex.Matcher class contains a property "OperationLimit" that you can also set to a number of steps that the regex engine should take maximum in analysing a given string. So far so good.

I tried to set the property with the function OperationLimitSet() to a silly value like 3. In 3 steps only very few regex should be executed, right? But what I found is that my regex always comes up with a solution. Here is what I did:

First I initialised my %Regex.Matcher.

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If you hold the InterSystems HL7 Interface Specialist certification, you can potentially get recertified and have your certification expiration date extended by five years by beta testing our new InterSystems HL7 Interface Specialist Recertification project. The project includes hands-on exercises to validate core skills for developers who use InterSystems products to build and test HL7 v2.x productions.

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I'm trying to track down documentation on how HealthShare + HSPI prioritizes patient demographics that are returned in various scenarios. I've done some experimenting but was looking for some confirmation.

1. HSPI - It's my understanding that trusted tiers and aging factors only impact the HSPI management UI experience. That they are not incorporated into patient search response. Can someone confirm this?

2. Patient Search Response (Clinical Viewer, PDQ, XCPD, FHIR) - Only Registry demographics are used. Nothing from HSPI or Patient SDA.

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