Business services are powerful components that pull data in from external sources. In most cases, pre-built components do the job, but sometimes you need to code custom business services. There are a few best practices to keep in mind when doing this:

Introduction

Nowadays, there is a lot of applications that are using Open Authorization framework (OAuth) to access resources from all kinds of services in a secure, reliable and efficient manner. InterSystems IRIS is already compatible with OAuth 2.0 framework, in fact, there is a great article in the community regarding OAuth 2.0 and InterSystems IRIS in the following link here.

Last time we launched an IRIS application in the Google Cloud using its GKE service.

And, although creating a cluster manually (or through gcloud) is easy, the modern Infrastructure-as-Code (IaC) approach advises that the description of the Kubernetes cluster should be stored in the repository as code as well. How to write this code is determined by the tool that’s used for IaC.

In the case of Google Cloud, there are several options, among them Deployment Manager and Terraform. Opinions are divided as to which is better: if you want to learn more, read this Reddit thread Opinions on Terraform vs. Deployment Manager? and the Medium article Comparing GCP Deployment Manager and Terraform.

%objlasterror is a useful reference to the last error.

Every time $$$ERROR is called, %objlasterror is set to a result of this call.

It's important in cases where you want to convert exception to status:

Try {
   //  quality code
} Catch ex {
   Set sc = $g(%objlasterror, $$$OK)
   Set sc = $$$ADDSC(sc, ex.AsStatus())
}

Because AsStatus calls $$$ERROR under the wraps, the order is important, first you need to get %objlasterror and convert exception after that.

Someone, please point me to the location of the cache ODBC drivers, as I only found IRIS ODBC drivers.

Hi,

I was looking at the ENSDEMO namespace in our Ensemble server. In the class Demo.REST.DirectoryOperation, there is a line that uses the macro $$$URLENCODE. I would like to know exactly what does this macro $$$URLENCODE() do. Specifically what value does it. Unfortunately, I can't find anything about this macro in the Ensemble Documentation.

I am tasked with using CACHE to insert data retrieved from a CACHE data base and insert it into an sql database. The columns in the sql table that I am trying to insert data into have names that contain underscores such as "ACCESSION_DATE" I found a utility in CACHE to connect to the sql data base and perform inserts. I have the data I need to insert. I need to pass the data into the sql utility referencing the column names.

I tried using indirection to set the data into underscored variables, but that isn't allowed in cache object script.

I am trying to achieve this in cache objects I am using 2014.1 here is the original code in C# and would like to convert this to cache

here is my code first c# and cache follows

Developers,

I am working with a CSP page with among other fields a checkbox.

Based on the checkbox I want to populate a drop-down box with specific options with a server side method using &html<....>.

I have the status of the checkbox in a javascript var.

Can I access this var or maybe the checkbox setting in the server side method?

Basically how do I know the status of the checkbox to populate the drop-down box correctly?

Any suggestions are appreciated!

Jacques

Starting with 2017.1, InterSystems is adding Ubuntu (64-bit) as a third linux server platform. Prior to 2017.1 Ubuntu was already available as a development platform and customers could use InterSystems distributions build for SUSE to run on Ubuntu. As a result there are a few license key implications for 64-bit linux versions starting with Caché and Ensemble 2017.1:

a) Customers using RedHat will observe no changes

b) Customers using InterSystems products⁽¹⁾ for SUSE on SUSE will need new license keys (no charge)

Below are the output messages when Cache start.

Allocated 178MB shared memory: 1MB global buffers, 26MB routine buffers

I try to configure the global buffer size by [System] -> [Configuration] -> [Memory and Startup] from SMP,

but it seems like the changes does not apply to the global buffer.

Thanks for your help.

Recently I was asked by a customer with this question. In MS SQL Server, there is a function called host_name() that will return the work station name.

Here is how I would do it in Caché :

With default SQL schema name, in my case SQLUser in SQL (which is equivalent as User in Caché class definition), I have a class called User.dummy, I added a classmethod called hostname and expose it as SQL function host_name:

In this article, I will show how you can easily containerize .Net/Java Gateways.

For our example, we will develop an Integration with Apache Kafka.

And to interoperate with Java/.Net code we will use PEX .

Architecture

Our solution will run completely in docker and look like this:

Hello guys,

I want to be able to export a range of messages from my production (from within a specific date interval), but while digging into intersystems documentation, it isn't giving me any details on how to perform this task.

It teases me saying "Ensemble provides a Message Viewer page for HL7. You can use this page to display, transform, and export HL7 messages (either external files or messages from the Ensemble message archives).", but then there are no signs of further information.