Neopets: Shop Stock Pricer

Neopets: Shop Stock Pricer.user.js

// ==UserScript==
// @name         Neopets: Shop Stock Pricer
// @namespace    http://lince.somnolescent.net
// @version      0.2
// @description  This script lets you scrape JellyNeo for prices on the shop stock page. Does not auto-submit or otherwise automate activities, though it does send a bunch of search requests to JN when run. Use at your own risk.
// @author       metalynx
// @match        http://www.neopets.com/market.phtml?order_by=id*
// @match        http://www.neopets.com/market.phtml?type=your*
// @icon         https://www.google.com/s2/favicons?domain=neopets.com
// @require      https://cdn.jsdelivr.net/npm/axios@~0.21.1/dist/axios.min.js
// @require      https://cdn.jsdelivr.net/npm/axios-userscript-adapter@~0.1.2/dist/axiosGmxhrAdapter.min.js
// @grant        GM.xmlHttpRequest
// @grant        GM_setValue
// ==/UserScript==

(function() {
    'use strict';

    let offset = -5 // increase/decrease prices a fixed amount
    let minprice = 1

    console.log(axios.defaults.adapter);
    axios.defaults.adapter = axiosGmxhrAdapter;

    let forms = document.getElementsByTagName('form')
    for (let i = 0; i < forms.length; i++) {
        if ((forms[i].action) == 'http://www.neopets.com/process_market.phtml') {
            var form = forms[i];
            break
        }
    }

    var node = document.createElement('a')
    node.href = '#autoprice'
    node.setAttribute('id', 'autoprice')
    var textnode = document.createTextNode(" >>")
    node.appendChild(textnode);

    form.getElementsByTagName('td')[4].appendChild(node);

    node.onclick = function(){
        document.getElementById("autoprice").remove()

        let rows = form.getElementsByTagName('tr')

        for (let i = 1; rows.length - 1; i++) { // index is set to 1 to skip the header row "Name", goes to the index just before the bottom Update/Remove All row
            let item = rows[i].getElementsByTagName('b')[0].innerHTML
            let pricebox = rows[i].getElementsByTagName('input')[2]

            //console.log(item + ' is currently set to ' + pricebox.value + ' NP')

            axios.get('https://items.jellyneo.net/search/?name=' + item.replace(' ', '+') + '&name_type=3').then(res => {
                let parser = new DOMParser()
                let doc = parser.parseFromString(res.data, 'text/html')

                let links = doc.getElementsByTagName('a')
                let price = 0

                for (let i = 1; i < links.length - 1; i++) {
                    if (links[i].className == 'price-history-link') {
                        price = parseInt(links[i].innerHTML.replace(',', '').replace(' NP', ''))
                        break
                    }
                }

                console.log('JN PRICE: ' + price + ' NP (' + item + ')')

                pricebox.setAttribute('value', Math.max(minprice, price += offset))
            });
        }
    }

})();

I also had this issue and after a little digging, I found that the script had added the URLs for the shop stock pages into user excludes for some reason in Tampermonkey's settings. I'd check that and remove any URLs out of the User Excludes section, if there are any.

It has something to do with the error on the side I think. Axios is not defined?

Has something to do with these two lines:
console.log(axios.defaults.adapter);
axios.defaults.adapter = axiosGmxhrAdapter;

I saw that error while digging, but I believe that error appears in Tampermonkey because axios is defined when the script actually runs, not in that window where it's being inspected. There are 2 @require js libraries pointing to axios code at the top, and they seem to be operational.

Just my experience, but I still have the axios error shown, but by emptying my user excludes for the script and preventing automatic updates, it has worked just fine for me.

Figured it out. I'm dumb.
Not only do you have to change http to https in lines 7 and 8, you also have to do it in line 27.