I have a drawing canvas on some of my Wordpress' post pages, where users can draw on. Upon drawing, my JS code currently sends the user's drawing to a php file. This is where I store the array in JSON format in .txt files. Whenever the page is loaded by someone else, JS loads these JSON files on start, so you see other people's sketches and you can draw on it as well - where the txt files get altered etc etc.
But is it possible to use Wordpress' custom fields? So every post has their own variable where the drawing array is stored. I have no idea what type of custom field to use.. Or whether there is a plugin out there that might be helpful with helping me achieve what I want. Or maybe not a good idea at all to do it this way.
Thanks in advance.