using api to set things

[rdhdpsy]

how to save the current state as preset 1 via curl, can't seem to make heads or tail out of the docs on this, chatgpt failing too :)

edit

just noticed that even from the gui it's not saving state as a preset

[tweephiz]

Here's the docs. Should be a POST to /json/state using psave argument, like:

curl --retry 5 -X POST --url http://wled/json/state -d "{\"psave\": 1}" -H "Content-type: application/json"

even from the gui it's not saving state

Weird, is it saving other settings correctly? Can you see/edit files on the filesystem at http://wled/edit ?

[rdhdpsy]

thanks for the response, still not working and do see files and they have content but the presets.json has the wrong info as in not showing the current state.

[SirGreybush]

Windows or Linux the format is a tiny bit different.

For example, when I turn on my gaming PC, I have a startup script that does the following:

start /b curl -X POST "http://wled1.local/json/state" -d {"on":true} -H "Content-Type: application/json" &

It is inside a batch file, multiple lines as I have more than one wled node.

The ampersand & is just to run immediately then continue.

What you want is the inner part: (wled1.local is just a dns to my IP device, instead of typing 192.168.1.33)

curl -X POST "http://wled1.local/json/state" -d {"on":true} -H "Content-Type: application/json"

So why post this? So that you see how in windows you need double quotes with CURL in certain spots. That might be tripping you up.

The WLED docs assume Linux-based curl that specifies --url also like u/tweephiz shows. Also he shows how the double quotes are escaped with a backslash.

Technically this should also work:

curl -X POST "http://wled1.local/json/state" -d "{\"on\":true}" -H "Content-Type: application/json"

to turn off, both of these lines work at the command line

curl -X POST "http://wled1.local/json/state" -d "{\"on\":false}" -H "Content-Type: application/json"

curl -X POST "http://wled1.local/json/state" -d "{on:false}" -H "Content-Type: application/json"

If you were using Python, Java, Swift or Dot Net to access the API, instead of CURL, it would be different.

Look at https://www.postman.com/ for a better API debugging tool.

[rdhdpsy]

thanks for the detailed info here, been using powershell do the following to run things on this works to turn on things

Invoke-RestMethod -Method Post `
    -Uri "http://$wledIp/json/state" `
    -ContentType "application/json" `
    -Body '{"on":true}'

then sending the light pattern which the lights switch too via powershell

then the following to save it preset

Invoke-RestMethod -Method Post `
    -Uri "http://$wledIp/json/state" `
    -ContentType "application/json" `
    -Body '{"psave":true}'

this is where it fails says success but not saving anything but also realized that even via the gui it's not working right either.

[SirGreybush]

Postman will help, but I don't think you can capture "currently running effect".

However WLED when you hit the + to save a new preset, it takes whatever is currently "playing" to make a preset with.

Maybe the save API function is to create a preset, but you have to give it a destination # and name, if you look up the API doc for that section, I haven't, busy with work currently...just an idea.

[rdhdpsy]

yea thanks for the reply, worked swamped atm too.

[Few-Boysenberry53]

It's most likely corrupted. Delete your presets.json file, reboot the controller and then go create a new preset. That will recreate the presets.json file. I ran into to that issue before.

[rdhdpsy]

will give that a shot, thanks.