Article
Henrique Dias · Apr 20, 2021 2m read
ZPM Explorer

Hi Community,

@José Roberto Pereira and I want to introduce ZPM Explorer, our graphic interface to explorer the greats applications that we have inside InterSystems Package Manager.

The idea

ZPM Explorer's idea is to make it easier for people to find out what ZPM offers. Every week, every day, a new app joins the ZPM world, so why not help developers and non-developers take advantage of this incredible world?!

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Hi,

If I test the Native api for Node.js from the documentation, I noticed (if I'm correct) all methods and calls are synchronous. By default due to the nature of Node.js, there is only one thread of execution and normally all JavaScript methods and all calls should be asynchronous and use either a callback function (the "old way") or promises or the async/await contruct to return their result, e.g.:

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I'd like to announce the release of something really rather interesting - revolutionary in fact. That may sound like hyperbole, but I don't think you'll have seen anything quite like this, or even thought it possible!

We've pushed out a new JavaScript/Node.js module named glsdb which you can read all about here in detail:

https://github.com/robtweed/glsdb

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Hi everyone!

I am recruiting on a fully remote Intersystems Developer. This role will be a long term contract to begin with high likelihood of extensions or conversion permanent. Please check out the job description down below and feel free to send me an email with your resume: Spencer.Frey@insightglobal.com

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I have a few Radio buttons, some of which have to have the same value. I need to know which one the user have selected, so I am using text, however it does not work well so far.

Example:
I have 4 Radio buttons: Apple, Pear, Lemon and Orange, with values: Apple, Pear have Value 1, and Lemon and Orange have Value of 2
(this unfortunatelly cannot be changed for this particular application)

I need to figure out that the user picked specifically Apple, so I am using text as follows:

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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

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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

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or "So you just got yelled at by your boss, for sending him an unformatted Hello World webpage"

Our previous lesson ended with us serving a Message value obtained from a Caché REST service to the client, using Angular as a runtime. While there is a lot of moving parts involved in this process, the page is not especially exciting at the moment. Before we can start adding new features, we should take a step back and review our tools.

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I wrote a step by step tutorial in the qewd-howtos repository how you can write state of the art multi-page web apps with Node.js using a QEWD-Up WebSocket/REST api back-end integrated with a mainstream web framework like NuxtJS & Vue.js.

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Hi All,

I have created a REST class in which have the Parameter HandleCorsRequest = 1;

I can able to access the API using Postman, but not with my web application. It throws the below error.

Access to XMLHttpRequest at 'http://localhost:52773/IrisVSCode/app/test' from origin 'null' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.

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Question
Syed M · Jul 27, 2021
Method Call

Hi all,
We have a session values in a cache method and need to get those values in a client method (JavaScript).

Eg :
ClassMethod Method1()
{
Set %session.Data("Param1")="Data 1"
}

ClientMethod onloadHandler [Language = javascript]
{
var ret = zenPage.getSessionValues();
}

ClassMethod getSessionValues() As %String [zenMethod]
{
Set Data = $G(%session.Data("Param1"))
Quit Data
}

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Article
Robert Cemper · Feb 8, 2019 2m read
Client for WebSockets based on Node.js

WebSockets as a communication technology wins increasing importance.
In the SAMPLES namespace, you find a nice example for running a WebSocket Server.
There is also a useful example for a Browser Client. JavaScript does most of the work.

My point is:
How to consume the output of a WebSocket Server in your application?

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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.

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Announcement
Nikita Savchenko · Jan 19, 2017
Caché WebTerminal v4 Release

Greetings, InterSystems community!

I am pleased to announce that the web terminal project, Caché WebTerminal version 4 gets its release! After long period of enhancing this web application from 2013, it came to the version 4, which features major stability and security improvements, intelligent autocomplete and syntax highlighting, convenient SQL mode and a lot of other useful features.

The goal of this article is to spread the knowledge about this project over the InterSystems community.

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At the heart of IRIS and Cache is a very interesting database architecture that we, at M/Gateway Developments, refer to as "Global Storage". If you ever wanted to know more about the fundamentals and capabilities of this underlying database, you might want to read a major analysis we've put together:

https://github.com/robtweed/global_storage

Amongst other things you'll discover that:

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Article
Lily Taub · Mar 19, 2019 9m read
A Tutorial On WebSockets

Intro

Most server-client communication on the web is based on a request and response structure. The client sends a request to the server and the server responds to this request. The WebSocket protocol provides a two-way channel of communication between a server and client, allowing servers to send messages to clients without first receiving a request. For more information on the WebSocket protocol and its implementation in InterSystems IRIS, see the links below.

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