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#ObjectScript

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InterSystems ObjectScript is a scripting language to operate with data using any data model of InterSystems Data Platform (Objects, Relational, Key-Value, Document, Globals) and to develop business logic for serverside applications on InterSystems Data Platform.

Documentation.

How do we trigger a BPL Business Process on a time schedule?

We are building a production that takes a steady stream of (HL7) lab results messages, processes them and stores them in a temporary database table. At scheduled points during the day (eg 0800, 1300, 1600) the database is queried and messages sent on to the downstream system. Aiming that the Processes to be implemented in BPL if possible - but we are having trouble triggering code in a BPL as a scheduled job.

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I have received 2 errors while publishing Patient data to repository. Message viewer displays like below and the Application log found bold content.

Could you please help me on this to resolve the errors.

An error occurred with the web application.
It has been logged to system error log (System Operation>System Logs>Application Error Log).

"<METHOD DOES NOT EXIST>OnPage+42^EnsPortal.MessageContents.1 *%Id,HS.FHIRServer.API.Data.Request : CSP Error"

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Question
· Nov 20, 2023
Working with Named Pipes

While creating my latest examples for the JavaContest I faced the need
to communicate with my code from a program in IRIS to my Java code.

Communication with |CPIPE| worked as READ or WRITE but not both?
In the Documentation Named PIPEs are explained rather shortly.
"Once open, a pipe acts like an ordinary device." Not so precise.
I failed to achieve my expected READ/WRITE as TCP would offer.

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Question
· Nov 17, 2023
Testing OAuth2

I am attempting to setup my first OAuth2 client, as we are adventuring into the realm of making FHIR API calls to our EMR from HealthShare Health Connect.

I have gone through and set up the Issuer Endpoint, and Client Configuration but now I want to test it and verify that the setup is correct. When I setup the Client Configuration, it would not allow me to use Discovery as it was saying I needed a "Client secret" but was not given one. So I set it up manually, thinking I hit all the information correctly.

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Hi community members!

Recently a customer ask me about a problem that detected when they were trying to send a post call to an external HTTP service, this service has changed and now it redirects to another URL, so they have setted to true the FollowRedirect parameter (setted to false for POST calls by default), what is the problem? They are sending a custom header in the post call and after the redirection this value is deleted.

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Hi everyone,

today I'm asking your help with an issue related to the response messages sent from my production to a client software, such as Postman or SoapUI.

Issue

In the last few days I've been unable to view the responses received from my production in Postman, even if I was able to do so earlier. I'm sending the request to a remote server reachable via a Putty tunnel.

Postman Test

I'm currently testing this simple POST message:

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We are running Batch job in scheduled task and the messages are picking in single session and it is not easy to trace the record.

I used the Set ..%SessionId= "" at before sending the message to BP but I see the session Id is '1' created for each message.

Is there anyother way to create new session for each message sending to BP?

Thanks,

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I am making a POST request to an API. In the case of an error, I don't know what parameters the response JSON will contain (they will change depending on the error). I am converting the response stream to an object but then I need a way to loop through all the properties and access their values. The following code is making the POST request, reading the response, and trying to add all the error messages to an array. But I can't iterate over the properties of the tProxy.errors object because it is a %ZEN.proxyObject. Is there a better way to do this?

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This applies to embedded and dynamic SQL queries in Caché ObjectScript. If I attempt to terminate the process via Management Portal, nothing happens. Neither does Ctrl C nor closing the terminal window in which my program is running, nor setting a stop flag in a global which is read by the program on each loop iteration. The only way to stop the query appears to be restarting the Caché server (which is running locally on my PC).

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I am currently debugging a piece of code relying heavily on macros. I am using breaks in the method to then check the values of macros and object properties as I go. However, any time I invoke a macro within a break I get an error. To get around this I am converting the macro calls into the underlying code. Some of these macros have messy translations and this is somewhat time consuming. Is there an easier way to access macros from within a break?

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Currently I have a program that is going to be used to compare global nodes between namespaces. Using nested FOR statements I am stepping through global nodes and comparing between the namespaces, if the global values are different I then parse the node comparing each delimited segment.

This is working.

I want to now be able to set what global I am in as a variable to expand on this concept.

Program architecture

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Question
· Sep 12, 2023
Scoping OID / OREF map

It's a feature of ObjectScript (perhaps widely known, perhaps not) that if you open the same object ID multiple times, you end up with the same OREF. For example:

USER>set obj1 = ##class(Sample.Person).%OpenId(1)
 
USER>set obj2 = ##class(Sample.Person).%OpenId(1)

USER>w obj1,!,obj2
1@Sample.Person
1@Sample.Person

Generally speaking, this is an important feature - you won't end up accidentally modifying the same record via multiple paths and losing some of the changes.

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on red hat, but I would also be interested in a wider answer.

after running a benchmark for 40 minutes, I have been asked if any rollbacks occurred in that time. Rollbacks from SQL or objects.

The application does not record this, so I am looking for a system level record.

The journal entries do the necessary reverse sets and commit just like any transaction. So i don't think i can detect them there.

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Hello,
as i'm trying to develop a operation and its methods (SQL adapter), I'm running into issues when i run my test class.
I have the class i want to test in the very same folder as my test class.
I followed the tutorial in the documentation.
When i run the test class, i get the following message error :

LogStateStatus:0::ERREUR #5002: Erreur Cache: <METHOD DOES NOT EXIST>zTestAdd+1^unitTests.testMyClass.1 *myMethod,Package.BO.MyClass

Here is my test class (heavily inspired bythe documentation :-) :

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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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Question
· Aug 17, 2023
ICMP/Ping with ObjectScript

Is it possible to "Ping" a remote host in IRIS for Health using ObjectScript? We host hundreds of TCP connections over hundreds of VPNs. I'm working on a project that would make it nice to have way to ping remove clients over the VPN to monitor connectivity and keep the tunnels alive.

Another thought/method would be to make an OS system call (AWS Linux), but I don't see a way to do that either.

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