I guess I'm not surprised that the circa 2014 tutorial may not work with DNN 9.6.1

Look for templates from Chris Hammond (christoc) and Will Strohl. I don't recall offhand if they have MVC examples.

Glad you got it to work later. Would you mind sharing your findings so that others can learn too?

Usually, this is a typo in the router, the API path being called by the client-side code, or missing method decorations in the API methods.

I found that the URL I was using was actually pointing to the installed version of the module. I thought I was following instructions properly by creating a new subfolder in DesktopModules that would be unique, and then I put my development files in a subfolder there. So I have DesktopModules/ETI/ProfileUpdate folder with my VS files in it.  When I installed the install.zip into DNN, it placed the install in DesktopModules/ProfileUpdate.  So I actually had two versions then, the development one and the installed one.

I got the HelloWorld URL to work by doing an install of the latest version of the project and all worked fine.

Later I discovered that the JSON call did not resolve to the full URL when I specified "/DesktopModules/ProfileUpdate/API/ModuleFields/GetFields?moduleID=123" and it was lacking the protocol and domain.  I then updated it to:

$.getJSON(
        location.origin + "/dotnetnuke" + "/DesktopModules/ProfileUpdate/API/ModuleFields/GetFields?moduleID=123",
       function (result) {
           var parsedTaskJSONObject = jQuery.parseJSON(result);
           console.log(parsedTaskJSONObject);             
        });

to get it to work, still knowing that I needed a proper solution if I was to deploy it.

I am now thinking that there must be a better way, since I simply want to create a module that allows an admin to set a value on some particular element of a user's Profile whenever that module is on a certain page. User goes to that page; that value gets set in their Profile.

Clint Patterson did an amazing job of putting that tutorial together, but as Joe says above, it is from 2014 and I find myself always wondering if things still work the same way as in the tutorial or if there is now a better way.

I tried Chris Hammond's video on creating and packaging a module (#11), but didn't find the coding detail that Clint had. I've just discovered his #14 video, so I am going to try that.

 

Thanks for the details.