Modifying script for Google sheets

Question

To log sensor data to Google sheets using ESP32, I found a script online to accomplish that. However, I want to modify it so that I could have additional data fields logged. I don't know much about JavaScript but tried to add a new var and modify the code but it doesn't work. Here is the original script:

function doGet(e){
  Logger.log("--- doGet ---");
 
 var tag = "",
     value = "";
 
  try {
 
    // this helps during debuggin
    if (e == null){e={}; e.parameters = {tag:"test",value:"-1"};}
 
    tag = e.parameters.tag;
    value = e.parameters.value;
 
    // save the data to spreadsheet
    save_data(tag, value);
 
 
    return ContentService.createTextOutput("Wrote:\n  tag: " + tag + "\n  value: " + value);
 
  } catch(error) { 
    Logger.log(error);    
    return ContentService.createTextOutput("oops...." + error.message 
                                            + "\n" + new Date() 
                                            + "\ntag: " + tag +
                                            + "\nvalue: " + value);
  }  
}
 
// Method to save given data to a sheet
function save_data(tag, value){
  Logger.log("--- save_data ---"); 
 
 
  try {
    var dateTime = new Date();
 
    // Paste the URL of the Google Sheets starting from https thru /edit
    // For e.g.: https://docs.google.com/..../edit 
    var ss = SpreadsheetApp.openByUrl("https://docs.google.com/spreadsheets/d/1-3NY0nbnJgx_RHJeG6GckfVesUXBI5rgxmTJ40yX0vE/edit");
    var dataLoggerSheet = ss.getSheetByName("Datalogger");
 
 
    // Get last edited row from DataLogger sheet
    var row = dataLoggerSheet.getLastRow() + 1;
 
 
    // Start Populating the data
    dataLoggerSheet.getRange("A" + row).setValue(row -1); // ID
    dataLoggerSheet.getRange("B" + row).setValue(dateTime); // dateTime
    dataLoggerSheet.getRange("C" + row).setValue(tag); // tag
    dataLoggerSheet.getRange("D" + row).setValue(value); // value
 
 
    // Update summary sheet
    summarySheet.getRange("B1").setValue(dateTime); // Last modified date
    // summarySheet.getRange("B2").setValue(row - 1); // Count 
  }
 
  catch(error) {
    Logger.log(JSON.stringify(error));
  }
 
  Logger.log("--- save_data end---"); 
} 

Here is the version with my additions:

function doGet(e){
  Logger.log("--- doGet ---");
 
 var tag = "",
     value = "",
     tag2 = "",
     val2 = "";

  try {
 
    // this helps during debuggin
    if (e == null){e={}; e.parameters = {tag:"test",value:"-1", tag2: "test2", val2: "-1"};}
 
    tag = e.parameters.tag;
    value = e.parameters.value;
    tag2 = e.parameters.tag2;
    val2 = e.parameters.val2;
 
    // save the data to spreadsheet
    save_data(tag, value, tag2, val2);
 
 
    return ContentService.createTextOutput("Wrote:\n  tag: " + tag + "\n  value: " + value + "\n  tag2: " + tag2 + "\n  val2: " + val2);
 
  } catch(error) { 
    Logger.log(error);    
    return ContentService.createTextOutput("oops...." + error.message 
                                            + "\n" + new Date() 
                                            + "\ntag: " + tag
                                            + "\nvalue: " + value
                                            + "\n  tag2: " + tag2
                                            + "\n  val2: " + val2);
  }   
}
 
// Method to save given data to a sheet
function save_data(tag, value, tag2, val2){
  Logger.log("--- save_data ---"); 
 
 
  try {
    var dateTime = new Date();
 
    // Paste the URL of the Google Sheets starting from https thru /edit
    // For e.g.: https://docs.google.com/..../edit 
    var ss = SpreadsheetApp.openByUrl("https://docs.google.com/spreadsheets/d/1-3NY0nbnJgx_RHJeG6GckfVesUXBI5rgxmTJ40yX0vE/edit");
    var dataLoggerSheet = ss.getSheetByName("sht31_1");
 
 
    // Get last edited row from DataLogger sheet
    var row = dataLoggerSheet.getLastRow() + 1;
 
 
    // Start Populating the data
    dataLoggerSheet.getRange("A" + row).setValue(row -1); // ID
    dataLoggerSheet.getRange("B" + row).setValue(dateTime); // dateTime
    dataLoggerSheet.getRange("C" + row).setValue(tag); // tag
    dataLoggerSheet.getRange("D" + row).setValue(val); // value
    dataLoggerSheet.getRange("E" + row).setValue(tag2); // tag
    dataLoggerSheet.getRange("F" + row).setValue(val2); // value
 
 
    // Update summary sheet
    summarySheet.getRange("B1").setValue(dateTime); // Last modified date
    // summarySheet.getRange("B2").setValue(row - 1); // Count 
  }
 
  catch(error) {
    Logger.log(JSON.stringify(error));
  }
 
  Logger.log("--- save_data end---"); 
}

So when I send the data using a GET request, only values of original variables (tag and value) are posted to the google sheet. Could you please tell how can I fix it?

EDIT: I have tried making a GET request manually using Postman to test if the script works. Here is the request:

https://script.google.com/macros/s/AKfycbwibc1auwDUtlRPIkIpO53FM6DivTLLNscMjBPGOaeajcVkZb6i7LH6gwp2Lw8I174B/exec?tag=Temp&value=21.13&tag2=Humid&val2=47.87