I have a web page that controls and inputs switch states into a database.
I confirm this works.
There is a php program to read the switch states from the database via a Get command and send this data in a json format to a remote microprocessor.
As I sit behind a Nat an ESP32 periodically calls in to Get those switch states and changes processor pin states accordingly for control.
From experience interrogating the Json data at microprocessor level and changing the pin status also works.