bot.js

const SteamUser = require('steam-user');
const SteamTotp = require('steam-totp');
const SteamCommunity = require('steamcommunity');
const TradeOfferManager = require('steam-tradeoffer-manager');
const config = require('./config.json');

const client = new SteamUser();
const community = new SteamCommunity();
const manager = new TradeOfferManager ({
	steam: client,
	community: community,
	language: 'en'
});

const logOnOptions = {
	accountName: config.username,
	password: config.password,
	twoFactorCode: SteamTotp.generateAuthCode(config.sharedSecret)
};

client.logOn(logOnOptions);

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

client.on("friendMessage", function(steamID, message) {
	if (message == "!help") {
		client.chatMessage(steamID, config.helpResponse);
	}
});

client.on('webSession', (sessionid, cookies) => {
	manager.setCookies(cookies);

	community.setCookies(cookies);
	community.startConfirmationChecker(10000, config.identitySecret);
});

function acceptOffer(offer) {
	offer.accept((err) => {
		community.checkConfirmations();
		console.log("We Accepted an offer");
		if (err) console.log("There was an error accepting the offer.");
	});
}

function declineOffer(offer) {
	offer.decline((err) => {
		console.log("We Declined an offer");
		if (err) console.log("There was an error declining the offer.");
	});
}