Alex, if you code it as an instance method (private or public) then you won't be able to call it from a classmethod (private or public) unless the caller has (or creates) an instance of its class. In other words, the decision about whether to code an instance method or a classmethod is surely independent of the decision about whether to mark that method private or public, no?
Using my DC mod superpowers I changed this post from a Question into an Article.
The page at http://www.georgejames.com/ws/ looks like this:
Use the link I've highlighted.
You may also need some of the Hints & Tips entries, and/or Patches entries.
If you get stuck I suggest you contact me directly, using the "John Murray" link near the top of that page.
Brian, if you don't mind using 20-year-old software, the link in my previous reply goes to a page from where I think MSM-Workstation can still be downloaded.
I have removed the "Developer Community FAQ" tag from this post. Please do not use this tag.
What sort of webserver is at http://xyzx.x.edu ?
How was it set up and configured to use CSP Web Gateway?
I suggest you contact InterSystems Support (a.k.a WRC) for help resolving your issue.
No, it's not possible to do this with Caché.
Some old-timers (like myself) may recall MSM-Workstation, which could do this kind of thing.
That'll be the problem, because /api/atelier is how Atelier talks to the server.
OK, I've just seen your version info in a comment on another answer.
Given you're using accessing port 80 on server xyz.x.edu I assume a regular webserver (e.g. IIS or Apache) has been set up on that server and the CSP Web Gateway added to it, then configured to connect to an InterSystems instance (perhaps on the same server, or perhaps elsewhere).
In that case, is your webserver set up to dispatch /api/atelier to the 2017.1 instance?
What is the $ZVERSION string of the remote server?
So does the following URL (or similar) give you access to Portal on the remote server?
Try port 57772.
In other words, use the same port number as you use when accessing InterSystems Management Portal.
Yes, that's what I mean.
Well, the %Z* names were safe from overwrite by InterSystems, until they came out with the %ZEN package 
Thanks Nicole. I'll watch out for it.
A CACHE.DAT database file can be mounted, read and modified by any instance of Caché, including one running "locally", by which I assume you mean "on your workstation".
Congratulations to the Atelier team for releasing 1.1. However I'm still disappointed that suggestions #2 and #3 which I made more than 18 months ago haven't (yet) been taken up. IMO they'd significantly improve the usability of part of the Atelier Explorer (AE).
In which case, please mark one of the Answers as "accepted". This helps the Developer Community spot questions that haven't yet been answered to the satisfaction of the OP.
I don't know of any publicly-accessible InterSystems servers you could point your Atelier at. You probably need to set up your own. It must be version 2016.2 or later.
I also have a hunch that if your webserver is prepared to serve HTTP then it may be sufficient to make some server-side settings in Portal on your Caché / Ensemble server, as follows.
The settings are WebServerName, WebServerPort, and WebServerURLPrefix. These can be found in the Startup Settings ([System Administration] > [Configuration] > [Additional Settings] > [Startup Settings])
Doing this may mean you don't need to get each Studio user to change their settings. But it seems possible the server-side settings won't be able to make Studios use HTTPS for templates and add-ins rather than HTTP.
For the record, I checked back through the old Studio versions I have access to. This setting first appeared in 2009.1.
Each Cache instance on your PC can run its Telnet service on a different port. Set it here:
It shouldn't matter to you. I suggest you just ignore results that begin with "^"
As noted by Keith Avery in his comment, the ListAll classmethod of %SYS.Namespace may also include implicit namespaces. This is mentioned in the class doc. I haven't verified, but I guess that you may get different results from ListAll() if you run it once immediately after Cache startup and again after Portal has been used to change namespace definitions (e.g. mappings).
ListAll() is implemented using calls to the undocumented $ZUTIL(90) function. I dug up some WRC information we received in 2010 about a change in behaviour in that function starting with Caché 2010.2. The summary was:
SML1081 - Support single namespace activation and reduce usage of mapping memory.
What is your Caché version?
w $zv
I strongly recommend you contact InterSystems Support (a.k.a. WRC) for assistance. See https://www.intersystems.com/support-learning/support/ for details.
Maybe this post will help you:
https://community.intersystems.com/post/configuring-cach%C3%A9-client-a…
Per Michelle's answer, moving up to the 1.1 beta may be worthwhile for you. See http://docs.intersystems.com/documentation/atelier/UpdateNotes-1.1.html for what it currently includes, plus instructions on how to get it.
There are two versions of Atelier currently available. Are you using 1.0 or the 1.1 Beta?