Issues with HTTP API Calls

[ciaranmullaney]

Hi everyone,

I’m currently working on a project that involves triggering scenes and controlling DMX fixtures in QLC+ using HTTP API calls. While the Web Interface (at http://<IP>:9999) works fine and I can use the Virtual Console buttons from the browser, I’ve run into issues with HTTP commands such as /api/functions and /run_scene.

Here’s what I’ve tried:
1. Enabled the Web Interface in QLC+ Network Settings.
2. Verified that the Web Interface loads successfully on the same computer and other devices on the network.
3. Attempted to call the following endpoints:
• http://<IP>:9999/api/functions – Results in a 404 error.
• http://<IP>:9999/run_scene?scene_name=Blue – Also results in a 404 error.
4. I tested port 9999 using other tools (e.g., telnet), and the Web Interface itself is accessible without issues.

My setup:
• QLC+ Version: 4.13
• Platform: Windows 11
• Web Interface Enabled: Yes


I’ve also tried different project files and restarted QLC+ to ensure the scenes are loaded properly. The test page provided with the QLC+ Web Interface (which uses WebSockets) works as expected, but the HTTP endpoints seem to be non-functional.

So, my questions are:
1. Are HTTP API calls (e.g., /api/functions, /run_scene) supported in the latest version of QLC+?
2. If yes, is there any additional configuration required to enable them?
3. Are there alternative ways to trigger scenes using HTTP or similar protocols?

Any guidance or clarification would be greatly appreciated. I want to confirm if I’m missing something or if the HTTP functionality is not implemented.

Thanks in advance for your help!

[mcallegari]

Escuse me but what are you talking about??
There's no such /api/functions or run_scene. Where did you get that from?
The official web API is documented here
https://docs.qlcplus.org/v4/advanced/web-interface
and test page is here
https://www.qlcplus.org/Test_Web_API.html

What you describe has not been implemented by this project. So I'm wondering who directed to something that we cannot support here...

[sbenejam]

Massimo, maybe he asked to ChatGPT an get wrong responses.

[ciaranmullaney]

Massimo, maybe he asked to ChatGPT an get wrong responses.

This is exactly what happened! I've worked out another route to do what I need. There are some great features of this software and learning something new every time I use it!

[mcallegari]

So you're basically telling us that you asked an AI for something, didn't verify the answer, came straight here to request support and abused of our time.
Guys...brain ON, chatGPT OFF please

[sbenejam]

Massimo, some new generation tech guys ask everything to ChatGPT. Sometimes the responses works but sometimes not. I used ChatGPT for specific cases and I get good responses many times the code proposed by AI don't work.
Claran please RTFM.

[mcallegari]

Santiago, I use it too, but I always verify the answer which most of the times is disappointing and needs to be fixed.
In general it saves time for specific tasks (especially for developers) but 90% of the times you need 3-4 iterations to get a response that makes sense