Question getting stuck at sending trades in loop

[chnel]

Hi, i've been trying to send trade offers in loop every time it blows.

 

Here is what im doing in theory:

 

im reading some valuables from local text file such as my items assetid, tradelinks and market hash name of item that i want to add trade.

then im creating offers in loop and sending them. i tried to sleep in loop and so many things every time it gives error.

 

in code : 

var SteamUser = require('steam-user');
var SteamCommunity = require('steamcommunity');
var SteamTotp = require('steam-totp');
var TradeOfferManager = require('steam-tradeoffer-manager');
var fs = require('fs');
var client = new SteamUser();
var manager = new TradeOfferManager({	"steam": client, 	"domain": "google.com","language": "en" });
var community = new SteamCommunity();
// Steam logon options
var logOnOptions = {	"accountName": "***",	"password": "****",	"twoFactorCode": SteamTotp.getAuthCode("sharedSecret")};
var lineReader = require('readline').createInterface({  input: require('fs').createReadStream('trd.txt')});
var lines=[];
var i,text,q;
var itmName,myitmid;
i = 0;
q=0;
// so far so good
lineReader.on('line', function (line) {lines[i]=line;console.log(i+". trd :"+lines[i]);i++;});
lineReader2 = require('readline').createInterface({  input: require('fs').createReadStream('nm.txt')});
lineReader2.on('line',function (line2){	itmName =line2;	console.log("itmName :"+itmName);});
lineReader3 = require('readline').createInterface({  input: require('fs').createReadStream('myitm.txt')});
lineReader3.on('line',function (line3){	myitmid =line3;console.log("myitmid :"+myitmid);});
//end reading
if (fs.existsSync('polldata.json')) {	manager.pollData = JSON.parse(fs.readFileSync('polldata.json'));}
client.logOn(logOnOptions);
client.on('loggedOn', function() {	console.log("Logged into Steam");});
client.on('webSession', function(sessionID, cookies) //right here it begins
{
  for(q = 0; q<lines.length-1;q++)//creating loop
  {
    manager.setCookies(cookies, function(err)
    {
      console.log("//////////");
      console.log("q : "+q);
      console.log(lines[q]);
      console.log("\\\\\\\\\\");
//used this because it reads all links but tries to send just lastone
      if (err){console.log(err);process.exit(1);return;}
      var linqs = getstID(lines[q]);//getting the userid from tradelink
      cItmId = getInv(linqs);//getting asset id of item
      if(cItmId !== false && cItmId !== "undefined")//checking the value before send offer
      {
      sndTrade(myitmid,cItmId,lines[q]);
      }
      else
      {
      console.log("false");
      }
    });
    community.setCookies(cookies);
  }
});
manager.on('sentOfferChanged', function(offer, oldState){console.log(`Offer #${offer.id} changed: ${TradeOfferManager.ETradeOfferState[oldState]} -> ${TradeOfferManager.ETradeOfferState[offer.state]}`);});
manager.on('pollData', function(pollData){fs.writeFile('polldata.json', JSON.stringify(pollData));});
function getstID(st)//that function gets the userid from tradelink
{
  var ll = st.substring(st.indexOf("=")+1,st.indexOf("&"));
  ll = "[U:1:"+ll+"]";
  return ll;
}
function getInv(sTeamID)//that func returns the assetid
{
  manager.loadUserInventory(sTeamID,730,2,false,function(err,inventory)
  {
    console.log("envanter yükleniyor");
    if(err)
    {
      console.log("[WARNING]: Couldn't load inventory of " + sTeamID + "!");
    }
    else
    {
      console.log(sTeamID+"envanteri yüklendi");
      for (var p = 0;p<inventory.length;p++)
      {
        if(inventory[p].market_hash_name == itmName)
        {
          console.log("item bulundu");
          return inventory[p].assetid;
        }
        else
        {
          console.log(sTeamID+"Item bulunamadı");
          return false;
        }
      }
    }
  })
}
function sndTrade(mnItm,cItm,trdLink)//that creates the offer.
{
    var offer = manager.createOffer(trdLink);
    offer.addMyItem({"assetid":mnItm,"appid":730,"contextid":2});
    offer.addTheirItem({"assetid":cItm,"appid":730,"contextid":2});
    offer.send(function(err,status)
    {
      if (err) {console.log(err);return;}
      if (status == "pending"){console.log("offer #${offer.id} sent, but reqires confirmation.");}
    });
}

i've tried without/with functions, tried to log every value to check up.