Is it possible to create a QR code that reads a URL with some parameters in POST?
Ex. QR code with GET URL: http://mysite.com?cod=2
Ex. QR code with POST URL [cod] = 2: http://mysite.com
No.
A QR code can only contain text - not instructions.
What you can do is have a script on your server that converts GET to POST , although I cannot understand why you wanted it.
GET
POST