slack bot for Ikea items availability

ikea-slack-bot.js

var request = require('request');

const ITEM_URL = 'https://www.ikea.com/pl/pl/p/gubboen-fotel-bujany-wew-zew-bialy-00469035/';
const URL = 'https://iows.ikea.com/retail/iows/pl/pl/stores/204/availability/ART/00469035';
const SLACK = 'https://hooks.slack.com/services/X/Y/Z';

request({
    url: URL,
    method: 'GET',
    headers: {
        "accept": "application/vnd.ikea.iows+json;version=1.0",
        "accept-language": "pl-PL,pl;q=0.9,en-US;q=0.8,en;q=0.7",
        "cache-control": "no-cache",
        "consumer": "MAMMUT",
        "contract": "37249",
        "pragma": "no-cache",
        "sec-fetch-dest": "empty",
        "sec-fetch-mode": "cors",
        "sec-fetch-site": "same-site"
    }
}, function(error, response, body) {
    if (error) {
        console.error(error);
    }

    if (response.statusCode === 200) {
        const { StockAvailability: { RetailItemAvailability } } = JSON.parse(response.body);
        const { AvailableStock: { $: availableStock }, RestockDateTime: { $: restockDateTime } } = RetailItemAvailability;
        const isAvailable = parseInt(availableStock) > 0;

        let messageText = `${availableStock} sztuk, data nastepnej dostawy: ${restockDateTime}, produkt: ${ITEM_URL} dostepnosc: ${URL}`;

        if (isAvailable) {
            messageText = `JEST JUZ W SKLEPIE ${messageText}`;
        } else {
            messageText = `jeszcze nie ma w sklepie ${messageText}`;
        }

        const payload = {
            "channel": "@jakub.sadura",
            "username": "IkeaBot",
            "icon_emoji": ":dworak:",
            "text": messageText
        };

        //if (isAvailable) {
            request({
                url: SLACK,
                method: 'POST',
                body: JSON.stringify(payload),
                headers: {
                    'content-type': 'application/json'
                }
            }, function(err, rsp, body) {
                if (!err && rsp.statusCode == 200) {
                    console.log(body.name);
                } else {
                    console.log(rsp);
                }
            });
        //}
    }
});