Hi Rui
I make a web page showing how many times a day 6 heating valves open and close. data must be saved per day, week month, that means i have 18 data fields on my webpage.
I use Async Web Server which I have learned in your amazing course but you only show how to update 1 data field. with
String processor (const String & var).
i have attached code that shows how i got it to work with more data fields …but 18 🙁
Maybe you have a better solution
Regards
Aage

(const String& var){
  Serial.println(var);
  if(var == "D1"){
          D1 = "2";
      return D1;
     }
if(var == "D2"){
          D2 = "45";
      return D2;
     }
     
  return String();
}