Front-end web development is the practice of converting data to a graphical interface, through the use of HTML, CSS, and JavaScript, so that users can view and interact with that data.
This post is intended to guide you through the new JSON capabilities that we introduced in Caché 2016.1. JSON has emerged to a serialization format used in many places. The web started it, but nowadays it is utilized everywhere. We've got plenty to cover, so let's get started.
The goal of this post is to discuss working with Websockets in a Caché environment. We are going to have a quick discussion of what websockets are and then talk through an example chat application implemented on top of Websockets.
In this article I would like to present the RESTForms project - generic REST API backend for modern web applications.
The idea behind the project is simple -after I wrote several REST APIs I realized that generally, REST API consists of two parts:
Work with persistent classes
Custom business logic
And, while you'll have to write your own custom business logic, RESTForms provides all things related to working with persistent classes right out of the box. Use cases
You already have a data model in Caché and you want to expose some (or all) of the information in a form of REST API
You are developing a new Caché application and you want to provide a REST API
Suppose you have developed your own web app with InterSystems technologies stack and now want to perform a captcha validation on the client side in order to determine whether or not the user is human and make it safer. There are some modern frameworks to address the captcha issue, however most part of them needs internet access to generate codes and sometimes are complex to implement. Take this as basic example considering that image recognition has gotten too good. That's why you nowadays you tend to see more pattern recognition captchas than mere reading ones. (I.e.
CLM is a tool for localization/internationalization/adding multi-language support to a project based on InterSystems Caché.
Imagine that you have a ready project where all the content is in Russian, and you need to add an English localization to it. You wrap all your strings into resources, translate them into English and call the necessary resource for Russian or English when necessary. Nothing tricky, if you think about it. But what if there are lots of strings and there are mistakes in Russian (or English)? What if you need to localize in more than one language – say, ten? This is exactly the kind of project where you should use CLM. It will help you localize the entire content of your project into the necessary language and retain the possibility to correct entries.
InterSystems created this video as a high-level overview of OAuth 2.0 technology, geared toward developers looking to learn the basics of OAuth 2.0. It will teach you how OAuth 2.0 works, what roles are involved, what benefits it can provide, and how InterSystems Caché can be used with this technology.
I have a Cache classes with %TimeStamp (e.g. 2016-04-18 12:29:11) and %Date (eg. 64027) properties. And I have a javascript client app, which needs full CRUD over this properties.
But in javascript date/time are defined by ISO8601 (e.g. timestamp 2016-04-18T12:29:11Z, date 2016-04-18).
There have been a few use cases recently within InterSystems where we've needed to connect to Caché-based web services from PHP. The first of these was actually the Developer Community itself, which uses web services as part of Single Sign-On with other InterSystems sites/applications. The following example demonstrates how to connect to a Caché-based web service (particularly, the web service in the SAMPLES namespace) from PHP, using password authentication.
I'm curious to know what InterSystems clients are using for csp based web development methodology.
Are you doing tag based development, or class based development?
If you are using tag based development, what tools are you using to create the look and feel of your web pages? Are you using tools like Adobe Dreamweaver, or do your developers sit down and code HTML using plain editors like Notepad and Notepad++
Are you doing prototyping of web pages and then adding CSP tags, or are you just developing the finished csp page with no prototype?
I am configuring IIS to work with the CSP Gateway but I'm running into this error:
"The Module DLL 'C:\Inetpub\CSPGateway\CSPms.dll' could not be loaded due to a configuration problem. The current configuration only supports loading images built for a x86 processor architecture."
RESTful API Call From Cache to Particle.io Electron
Tom Fitzgibbon | Multidata | 212-967-6700 x537 | tom@mul.com
Summary: Simple Blink Tutorial for Particle.io Electron Device from Cache
Electron device is a tiny ARM processor ($40-$60) that connects to Particle’s world wide leased 2G/3G network (about $3/mo) and runs off an included LiPo battery. Using Cache’s %Net.HttpRequest you can send/receive data, control hardware and read sensors.
As web application gets more complex, more technologies are involved into the application development. Once it gets deployed in large scale the configuration gets more complex too. For sure one of the most difficult part of the story is the security. In a complex solution when independent servers are feeding single web pages with contents, it is indeed challenging to keep the integrity of such system. HTML5 introduced a (weak) security constraint, the Cross Origin Resource Sharing (CORS). This article tells how to enable CORS for CSP/ ZEN applications.
This question came on the Ensemble in Healthcare email list. It's a great question. I'm working on an answer, but am posting it here to get any other input. I'll also address the option of using %CSP.REST.
I have a %Net.Request object and I want to get a full URL of the request sent (preferably after all redirects, but even full initial one would be good). For example, I have the following method:
Let's pretend you are working on a project where you may be retrieving a URL for some purpose and you have the need to be easily able to parse apart that URL to get the various components that make up the URL.
Do you need to quickly build a web page to interact with your database?
Take a look at these two courses to learn how Zen Mojo can help you display collections and make your collections respond to user interactions.
Displaying Collections and Using the Zen Mojo Documentation
Learn the steps for displaying a collection of Caché data on a Zen Mojo page, find crucial information in the Zen Mojo documentation, and find sample code in the Widget Reference. Learn More.
I would like to write some code to parse a set of HTML pages from the internet in order to gather information from each web page.
All of the web pages are generated using a template, so the format of each of the web-pages is consistent with one-another and the information that I want to gather is always located in the same logical place within the page.
What is the best way to parse an html page in order to gather information at a specific place?
Can XML XPATH be used here? Does anyone have any examples of parsing HTML content?
Now, let’s say you can’t access the terminal or simply you just rather execute it from a web interface. In this article, I will show you how to execute terminal commands from a simple web page.
For example, in the image below you see how we execute $zv on a webpage:
Hello, our customer, large industrial company, is considering modernizing their old CSP application so it can run on multiple client device types, using responsive design.
They have a lot of experience with CSP and some ZEN.
They are new to REST and have some limited knowledge of javascript - perhaps not enough to the extent used by client framework.
Does anyone have a framework or a set of templates that you would be willing to share?
I am happy to share the news that Zen Mojo 1.1.2 has been released. This release includes a critical fix for Firefox that we had to get out as fast as possible. No other changes are included to allow easy upgrades. We recommend upgrading to this release if you are running on Zen Mojo 1.1.1.
All upcoming Caché and Ensemble releases will ship with Zen Mojo 1.1.2.
posted some weeks ago in the "old" ZEN Google Group, maybe someone here can help to understand how to properly setting up a csp applications and contributing from the build-in caché security mechanism.
I´ve created a webapplication and wan´t to add further security to it using the smp. But... first things first.
I have two Databases let´s say DB1-LOGIN and DB2-Application. Each of this DBs has a resource assigned. DB1-LOGIN has a resource %DB1-LOGIN which has a public permission of 'read'. DB2 has a resource as well %DB2-Application with no public access.
I have installed in Windows 10 the following: CACHE 2016, node.js v 4.4.7 and express .
- where can I get cache.node? The link in the Intersystmes documentation http://globalsdb.org/downloads/ doesn't work. I found cache0100.node and cache0120.node in my Cache instance's \bin directory. But I am not sure if I can use them or not.
- how to install cache.node ? Where do I place it exactly?
Can anyone recommend any tutorial or code example with installation instructions?
I'd like to have an array as a parameter for a SQL 'WHERE... IN' statement. The array would be modified in javascript on the browser. Here's a simplified example:
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