Removing Google Analytics and Replacing it with a cookie free Javascript Geo Tracking app

<script type="text/javascript" src="https://ipinfo.io/json?callback=myCallback">

</script>

 function myCallback(post){
session = Math.random().toString(36).substring(2, 15) + Math.random().toString(36).substring(2, 15); //added 11-11 default session 

pg_name="whatever ur page name is";                  
country = post.country;
city =post.city;
ip_address = post.ip;

passVars(); //first run start script then run passvars javascript function to  pass vars to Lambda


        }  //end myCallback

function passVars() {

var date = new Date().toLocaleDateString('en-US');
var now = new Date().toLocaleTimeString();
var out = new Date().toLocaleTimeString();

   //then pass 5 objects... ses, hit2 etc to lambda and call event.ses inside lambda..note, this object must be called article
const article = { ses: session, city2: city, hit2: date, date2:pg_name, ip2:ip_address,country2:country, time2:now, time3:out };
    //call Lambda function here, this next line is the AWS api gateway call to the Lambda function
fetch("https://xxxx.execute-api.us-east-2.amazonaws.com/default/saveS3", {

    method: "POST",
    // Adding body or contents to send
    body: JSON.stringify(article),
    // Adding headers to the request
    headers: {
        "Content-type": "application/json; charset=UTF-8"
    }
})

}

const AWS = require('aws-sdk');
const fetch = require('node-fetch');
const s3 = new AWS.S3();

exports.handler = async (event) => {
       //first fetch ur current json file from s3 bucket
  const res = await fetch('https://xxxx.s3.us-east-2.amazonaws.com/tracker2.json');
  const json = await res.json();

  // then add a new record
        json.push({
          // get geo data, then pass vars into here from javascript file
            country: event.country2,
            session: event.ses,
            page_name: event.date2,
            hit: event.hit2,
            ip: event.ip2,
            time_in: event.time2,
            time_out: event.time3,
            event_name: event.city2

        });


   //then re write whole updated file back to s3 and it will overwrite existing file

  var params = {
      Bucket: 'xxxx',
         Key: 'tracker2.json',
         Body: JSON.stringify(json), //pass fetch result into body with update from push
         ContentType: 'json',
   };

   var s3Response = await s3.upload(params).promise();

};

[{"country":"Philippines","session":"j4w9nq38x4nl8v1fxy3ja","page_name":"Learn Java","hit":"11/22/2021","ip":"175.176.55.14","time_in":"7:52:35 PM","time_out":"7:52:35 PM"},{"country":"United States","session":"n0ja7c6z2vlec6tn7bd","page_name":"Learn Java","hit":"11/22/2021","ip":"66.249.66.130","time_in":"7:04:57 AM","time_out":"7:04:57 AM"}]