I tried using the HTTP library for Processing to send a POST to my Photon to turn on a web LED.
Doesn’t work. Do you have a working example? Is this even possible?
“Doesn’t work”… A bit vague don’t you think?
It’s also really not a particle related question (at all), but rather a processing one. You’re bound to find more support in one of their respective knowledge bases.
That said… Have a look at this, might help? https://github.com/runemadsen/HTTP-Requests-for-Processing/blob/master/README.md