Nodejs Jabberwacky chatbot

Jabberwacky.js

#!/usr/bin/env node
// usage: ./jabberwacky.js "Hello sir"
var fs = require('fs');
var cheerio = require('cheerio');
var arg = process.argv;
var fetch = require('node-fetch');
var search = arg.slice(2,arg.length).join(' ').replace(/Curvebot1?/,'');

var previous = fs.readFileSync('./conv.txt');
var def = {
  asbotname: 'jabberwacky',
  reaction: '',
  vText8: '',
  vText7: '',
  vText6: '',
  vText5: '',
  vtext4: '',
  vText3: '',
  vText2: '',
  vText1: '',
  adcolor:0,
  sortorder:1,
  function: '',
  prevref: '',
  lineref: '!01',
  vText1uni: '',
  vText1: '',
  islearning:1,
  emotion: '',
  sub: '  Say it!',
  speechtest: 1,
  headers: null,
}
var context = previous.length ? JSON.parse(previous) : def;
context.vText1 = context.vText1uni = search;

var header = context.headers ? {
  Host: "www.jabberwacky.com",
  Origin: "http://jabberwacky.com",
  Connection: 'keep-alive',
  AcceptLanguage: 'en-US',
  Accept: 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
  Referer: "http://www.jabberwacky.com/",
  Cookie:context.headers}
   : {};

header["Content-Type"] = "application/x-www-form-urlencoded";
delete context.headers;

//console.log('Using Cookie:', header);
var form = Object.keys(context).map(k => { return `${encodeURIComponent(k)}=${encodeURIComponent(context[k])}`}).join('&');

fetch('http://jabberwacky.com/',{ headers:header, method: 'POST', body:form}).then(res => {
  //console.log(res);
    res.text().then(r => {
      //console.log(res.headers);
    var headers = res.headers.get('set-cookie'); ///Is array :( get return only first
    var moreHeaders = res.headers._headers['set-cookie'];
    headers = moreHeaders.map(e => e.split(';')[0]).join('; ');
    //console.log(headers,'<<<<<<<<<');
    var $ = cheerio.load(r);
    var formInputs = $('form').first().find('input');
    var extracted = {};
    formInputs.each((i,el)=>{
      extracted[$(el).attr('name')] = $(el).attr('value');
    });
    extracted.headers = headers;
    //console.log(extracted);
    fs.writeFileSync('./conv.txt',JSON.stringify(extracted));
    //debugger;
    process.stdout.write(extracted.vText2);
    process.exit(0);
  });
},err => console.log(err));