Steam Bot

const SteamUser = require("steam-user");
const client = new SteamUser();
const SteamTotp = require("steam-totp");
const code = SteamTotp.generateAuthCode("xgYJ7Ui+xI8i24T4sFNaHPZACv0=");
const SteamCommunity = require("steamcommunity");
const community = new SteamCommunity();
const TradeOfferManager = require("steam-tradeoffer-manager");
const fs = require("fs");

const logOnOptions = {
    accountName: "kostickamiki2",
    password: "Kosti898",
    twoFactorCode: SteamTotp.generateAuthCode("xgYJ7Ui+xI8i24T4sFNaHPZACv0=")
};

client.setOption("promptSteamGuardCode", false);
const offers = new TradeOfferManager({
    "steam": client,
    "domain": "-",
    "language": "en",
    "pollInterval": 1000 * 10,
    "cancelTime": 1000 * 60 * 3
});

client.logOn(logOnOptions);

client.on("loggedOn", () => {
    console.log("Succesfully logged on.");
    client.setPersona(SteamUser.Steam.EPersonaState.Online);
    client.gamesPlayed(["idling games", 440]);
});

client.on("friendMessage", (sender, msg) => {
    if (msg === "!help") {
        client.chatMessage(sender, "List of commands: !trade !donate");
    } else if (msg === "!trade") {
        client.chatMessage(sender, "Offers card sets for PUBG or CS:GO items but he must have profit.");
    } else if (msg === "!donate") {
        client.chatMessage(sender, "You can send the gift of a bot which automatically accepts.");
    } else {
        client.chatMessage(sender, "Use !help to see how this bot works.");
    }
});

client.on("friendRelationship", (sender, rel) => {
    if (rel === 2) {
        client.addFriend(sender);
        client.chatMessage(sender, "Welcome in my friends list!");
        console.log("Friend accepted.");
    }
});

client.on("steamGuard", function(domain, callback, lastCodeWrong) {
    console.log("Needing steamguard code processing...");
    setTimeout(function() {
        var code = SteamTotp.generateAuthCode("xgYJ7Ui+xI8i24T4sFNaHPZACv0=");
        callback(code);
    }, 30 * 1000);
});

client.on("webSession", function(sessionID, cookies) {
    offers.setCookies(cookies, function(err) {
        if (err) {
            console.log("Unable to set trade offer cookies: " + err);
            setTimeout(function() {
                client.webLogOn();
            }, 1000);
        } else {
            console.log("Trade offer cookies set. API Key: " + offers.apiKey);
        }
    });
});

fs.readFile("polldata_.json", function(err, data) {
    if (!err) {
        offers.pollData = JSON.parse(data);
    }
});

offers.on("pollFailure", function(err) {
    console.log("Error polling for trade offers: " + err);
    setInterval(function() {
        offers.doPoll();
    }, 10000);
});

offers.on("pollData", function(pollData) {
    console.log("poll");
    fs.writeFile("polldata_.json", JSON.stringify(pollData));
});

offers.on("newOffer", function(offer) {
    if (offer.itemsToGive.length == 0) {
        offer.getUserDetails(function(err, me, their) {
            if ((!err) && (me.escrowDays == 0) && (their.escrowDays == 0)) {
                offer.accept(function(er, status) {
                    if (!err) {
                        console.log("Offer accepted | status ", status);
                    }
                });
            }
        });
    }
});