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Caché Server Pages (CSP) is both an architecture and toolset used to build an interactive web applications with the InterSystems Data Platform.

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Question Manikandasubramani S · Jan 26, 2019

Binding of data property from Vue instance to Vue component using vuejs

Hi,

I have been trying to implement SPA using routing between two components in a CSP page. 

If i use the line which i commented the page views and gets data from the vue instance (when not using the <route-view> and other 2 vue route functions below).

since i need to implement routing i am using as below, now the property "selectedYear" is not getting data from vue instane and i am getting the below error as well.

I dont know whether i am going down the right path.

please see my code below and help me

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>Sample Report</title>
 

#Caché #CSP #JavaScript #Vue.js
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Article Alex Kogan · Jan 22, 2021 2m read

Embedded JavaScript trick – Markers allow use of < and >

This concept may be known to some, but I just found it very useful and I would like to share as it may help someone else.

If you are working with CSP or Zen you sometimes come across the need to use embedded JavaScript. Suppose you are working with some loops, which use < or > as shown in example below:

&js< 

               var test = document.getElementById('seTest');

               for (var i = 0; i < test.options.length; i++) {

                              // Do Something here with my test.options[i]...

               }             

>

Now, because we are using < inside this for loop Studio will

#Caché #CSP #HTML #JavaScript #ZEN
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Question Martin Staudigel · Jan 24, 2022

Returning Data from a %CSP.Page

Hello Community,

to return data from the OnPage() method of a %CSP.Page I used to simply write out the value of a %DynamicArray e.g. via

write tResponse.%ToJSON()

and return $$$OK afterwards.

Large objects bigger than 4MB result in an exception when trying to create return values using this way. What is best practice for returning values as JSON, especially if values exceeding the capcity of the %String class are to be expected? I saw that it is possible to write data to a file with e.g.:

set tmp = tResponse.%ToJSON("/opt/home/tmp/test_stream.txt")

Am I supposed to do this and afterwards

#InterSystems IRIS #CSP #JSON
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Article Muhammad Waseem · Jan 14, 2022 3m read

Plug and play DATASETS with ObjectScript Package Manager (ZPM)

With the release of InterSystems IRIS 2021.2 Preview and all-new LOAD DATA functionality dataset can by added with Objectscript Package Manager (ZPM) 

Medical Datasets contains following 12 datasets. For dataset tables and data details please visit ONLINE DEMO by using SuperUser | SYS 

ID Dataset Name Tables Licence
1 Synthetic Medical Data 11 Public Domain
2 Health Care Analytics - 1 8 Public Domain
3 Global Suicide Data 7 Public Domain
4 COVID-19 Polls1 7 CC-BY
5 Cancer Rates by U.S. State 2 Public Domain
6 Opioid Overdose Deaths 2 Public Domain
7 Heart Disease Prediction 1 Public Domain
8 Yellowpages medical services dataset 1 Public Domain
9 Hospital ratings 1 Public Domain
10 Heart Failure Prediction 1 (CC BY 4.0)
11 Diabetes Dataset 1 Public Domain
12 Chronic Kidney Disease 1 Public Domain
#InterSystems IRIS #Contest #CSP #InterSystems Package Manager (IPM)
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Article Henrique Dias · Aug 20, 2019 2m read

Dashboard IRIS History Monitor

Hi, everyone!


I want to share a personal project that started with a simple request at work: 

Is it's possible to know how many Caché licenses we are using? 

Reading other articles here in the community, I found this excellent article by  David Loveluck 


APM - Using the Caché History Monitor
https://community.intersystems.com/post/apm-using-cach%C3%A9-history-monitor

So, using David's article, I started using Caché History Monitor and to show all that information. 

When facing the question: Which cool tech should I use? 

My decision was CSP, simple and powerful, so the customer that I'm working for

#Caché #InterSystems IRIS #Open Exchange #Containerization #CSP #Dashboards #Docker #Monitoring #System Administration
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Article Semion Makarov · Jan 4, 2022 2m read

Email templating with CSP

Hi Devs!

Recently, I needed to create templates for newsletters.
I couldn't find any tools, so I decided to use the CSP (Caché Server Pages) to build the templates.

Let's figure out how to make a newsletter similar to Weekly OEX Digest.


Weekly OEX Digest

There are strict requirements for HTML email messages.
Basic requirements:

  1. The page should be static;
  2. You have to use inline styles for mailer compatibility (so much code);
  3. Use custom fonts, some images, etc., is not allowed

CSP is well suited for this task because it allows you to do the complete generation on the server-side and produce a

#InterSystems IRIS #CSP #ObjectScript
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Question James Westley-Farrell · Dec 7, 2021

Can't change content-type in REST response

I've never had a problem changing the content-type on a response using either %CSP.Page or %CSP.REST until now. No matter where I put the line to set the content-type to "application/json", it stubbornly emits a content-type of "text/html".

In OnPreHTTP: (I tried one at a time)
either
    do %response.SetHeader("content-type", "application/json") // didn't work
or
    set %response.ContentType = "text/plain" // didn't work

The same lines in OnProcessInput() didn't change the output content-type, either.

The class signature is 
Class HS.Local.VA.HS.DocRepo.Prefetch.Service.RESTService Extends (Ens.Busi

#HealthShare #CSP #REST API
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Question Oliver Wilms · Aug 22, 2021

Web Gateway Error "Invalid Request : Cannot identify application path"

I want to try SAM in AWS. I followed these steps:

docker pull store/intersystems/sam:1.0.0.115

git clone intersystems-community/sam: System Alerting and Monitoring (SAM) (github.com)

git clone https://github.com/intersystems-community/sam

tar zpxvf sam-<version>.tar.gz

tar zpxvf sam-1.0.0.115-unix.tar.gz

$ cd sam-<version>

cd /home/ec2-user/git/sam/sam-1.0.0.115-unix/

$ ./start.sh

In your browser, visit:
http://<ip-address-of-host-where-SAM-runs>:8080/api/sam/app/index.csp
You'll be prompted to login.You can use standard InterSystems IRIS credentials like _SYSTEM/SYS.

#InterSystems IRIS #CSP #System Alerting and Monitoring (SAM) #Web Gateway
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Article Chris Stewart · Apr 21, 2017 3m read

Let's write an Angular 1.x app with a Caché REST backend - start here

So, one day you're working away at WidgetsDirect, the leading supplier of widget and widget accessories, when your boss asks you to develop the new customer facing portal to allow the client base to access the next generation of Widgets..... and he wants you to use Angular 1.x to read into the department's Caché server.   

There's only one problem:  You've never used Angular, and don't know how to make it talk to Caché.

This guide is going to walk through the process of setting up a full Angular stack which communicates with a Caché backend using JSON over REST.  

This is a parent page for the

#Caché #Best Practices #Caché #Angular #JSON #REST API #Frontend #CSP
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Question Hoi Lai · Jun 26, 2020

How to disable the login prompt when csp session is expired and just return http status 401?

I am working on an angular applications and build a web application (Rest API) on IRIS for health, the web application uses a password authentication and setup with the default csp session time out (15 minutes). If the user make an REST API call from the angular application after the session expired, it displays a login prompt...is that anyway that we can disable the login prompt and just simply return http status 401?  When the angular application received the status 401, it can redirect to angular error page.

Thanks,

Hoi

#InterSystems IRIS for Health #Angular2 #CSP #REST API
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Question Kishan Vaja · Jul 1, 2021

How to add time slot and theater in Cinema Application

I want to add time slot and category metadata to complete my cinema application.

I am following the documentation of the cinema application "https://docs.intersystems.com/latest/csp/docbook/Doc.View.cls?KEY=TWEB2…" and in that,

I was trying to add theater and time slot. But I was not able to do that.

I was also trying to filter the records as per the ratings and category selection on the search bar. but this is showing some error.

I also want to know that how to add bootstrap in cps page?

Thank you

#Caché #CSP
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Question Michael Lei · Jun 28, 2021

uploading files with csp and webservice

Why do I upload files faster with webservice than with csp?

The soap protocol used by webservice has to go through http protocol. csp directly handles http, no xml encapsulation, so it should be faster.

After testing, for a 1M file, csp is about 0.1s slower. After the gateway connection to 1972, there is a stall of about 0.1s, not sure why.

Is there any way to make the file upload speed of csp faster than webservice?

webservice用的soap协议也得走http呀。csp直接处理http，少了xml的封装，按理来说应该更快。

经测试，1M的文件，csp慢了0.1s左右。在网关连接到1972后，有0.1s左右的停滞，不知道原因。

有什么办法能够使csp的文件上传速度比webservice快吗？

#Caché #CSP #SOAP
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Question Virginia Rogers · Apr 20, 2021

What determines the environment for $ZF(-1)?

Hello,

I'm using $ZF(-1) in a class method which will be invoked from a csp page.

What determines the environment of the spawned process?  If I use $ZF(-1,"echo hello world > output.txt"), the resulting file is owned by cacheusr:cacheusr.  However, when I use $ZF(-1,"printenv > output.txt"), the environment is from my personal unix account, no matter which Cache username I'm logged in under when running the web application.  

Thanks

#Caché #CSP
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Question Martin Staudigel · Apr 14, 2021

Fine tuning access permissions for CSP application

Hello,

fine tuning access permissions is a difficult issue in Caché, at least for me as it seems.More generally, I would be interested in how to find out which permission a user is missing when a permission violation is logged.In this specific case a user, created in (from my point of view) an identical way as on other instances, is not allowed to execute an operation within a CSP service on the messagebank (which however works on the other machines).Unfortunately, the message in the errorlog does not tell where exactly the access violation occurs, or what permission is missing.

#Caché #Access control #CSP #Security
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Question Krishnamuthu Venkatachalam · Mar 26, 2021

Access deepsee dashboard via delegated access

Dear Folks,

I have recently studied deepsee and developed few dashboards needed for our web app users. I am trying to embed them in our existing web app which uses angular with delegated user access. I need to embed the native IRIS dashboard into it. ( I can't use Highcharts or any other js tools). 

How do I setup the dashboards to work with delegated authentication (Without providing access to management portal or other parts) ? Also should I use the default csp/{Namespace}/_DeepSee.UserPortal.DashboardViewer.zen? or any other web application URL ?

Thanks

#InterSystems IRIS BI (DeepSee) #Analytics #Analyzer #Angular #Authentication #Access control #CSP #Dashboards
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Question Evgenii Ermolaev · Mar 25, 2021

Do I need to enable LDAP authentication for my Cache instance ot use LDAP auntentication in a single CPS application?

Currently, I am working on a CSP application that is supposed to generate reports. Users will have varying access to said reports. To achieve that, I plan to use LDAP (because it's used in other systems where those users already exist). Documentation does not provide enough information, so I'd like a clarification:
Do I need to enable LDAP authentication for the whole Cache instance to use LDAP authentication in a single CSP application in that instance?
We (as in me and my organization) use Cache Authentication for our instances, and one of the reasons to use LDAP for this system was to avoid

#Caché #Authentication #Access control #CSP #LDAP
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Question max simpson · Mar 21, 2021

How to cache REST Responses in IRIS?

Hi All,
I am implementing REST API's in IRIS using the below link as a guide. 
I chose this approach so i could have a single entry point for requests regardless of namespace

https://community.intersystems.com/post/restful-exception-handling 

a sample form the HIHLib.REST.Server class i am using is below. my question is does IRIS and CSP cache responses for requests to the CSP.REST class?
and if so what parameters or properties do i need to enable?

i notice the %CSP.Page class that %CSP.REST inherits from has an EXPIRES parameter that can be set, and %CSP.Response has a VaryByParam and Expires setti

#InterSystems IRIS #CSP #REST API
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Question Enzo Toscano · Mar 9, 2021

BinaryStream to file

First of all thank you for your time in reading this question and writing a response,

We would need some help,

What is the best method for save a %CSP.BinaryStream to a file?

Thank you in advance!! 

#Caché #CSP
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Question Markus Kogler · Jan 16, 2021

Remember Password feature in ZEN Application

Hi Community,

is there a possibility to implement a "remember password" feature in a ZEN Application?

In the management portal I added a web-application for a ZEN application with password authentification. I created an own login page, and now I want to implement a "remember password" feature (User should not have to login again after the session times out or when the browser window is closed).

#Caché #Authentication #CSP #ZEN
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Question Andy Coutinho · Feb 25, 2021

Catch closing tab/menu changing event.

Does anyone know how to get the closing tab/menu changing event in a CSP? I've tried the JS "OnBeforeUnload" already but it seems the browsers aren't allowing it anymore. I need to show a pop-up that holds the user if trying to get away before completing the stage.

#Caché #CSP #JavaScript
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Question Orlando Lagman · Jan 14, 2021

Saving image data from csp

I created a csp that will capture image data from a html canvas element.  I created a button element to save the contents as a dataURL string from jpeg and make a server call.

the string is too long

I would appreciate any suggestions in saving the data into the server, currently just a global.

#Caché #CSP
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Article Oliver Wilms · Oct 5, 2020 2m read

File Passthrough Feeder

IRIS Interoperability Productions formerly known as Ensemble are fun to work with. Yes, I really think my work is fun. I have seen File Passthrough Services and File Passthrough Operations come in handy. At one point we placed test messages in files, then we utilized a File Passthrough Service with Inbound File Adapter to send the contents of the file as a Stream to a File Passthrough Operation with Outbound TCP Adapter. The Operation pointed at a TCP service and sent the test messages.

Later I wanted to troubleshoot another service that received file contents as the body of HTTP requests.

#Ensemble #Contest #CSP #Interoperability #REST API #Testing
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