a.txt

hey everyone


const fs = require("fs");
const express = require("express");

function callbackfn(err, data) {
  console.log(data);
}
fs.readFile("a.txt", "utf-8", callbackfn);











function handleFirstRequest(req, res) {
  console.log(req.headers);
  var con = req.headers.con;
  //var coun = req.query.calc; // Retrieve the counter value from query parameters
  let answ = "the ok sum is " + calSum(con) + " ok mm"; // Use the retrieved counter value
  console.log(req.query.c2);
  res.send(` ${answ}`);
}




// 2) using headers
function handleFirstRequest(req, res) {
  //console.log(req.headers);
  console.log(req.body);
  var con = req.body.con;
  //var coun = req.query.calc; // Retrieve the counter value from query parameters
  let answ = "the ok sum is " + calSum(con) + " ok mm"; // Use the retrieved counter value
  //console.log(req.query.c2);
  res.send(` ${answ}`);
}