Download Stanford Dining Data

dining_download.user.js

// ==UserScript==
// @name         Download Stanford Dining Data
// @namespace    http://tampermonkey.net/
// @version      2024-10-12
// @description  try to take over the world!
// @author       You
// @match        https://rdeapp.stanford.edu/MyMealPlan/Transactions
// @icon         https://www.google.com/s2/favicons?sz=64&domain=stanford.edu
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    setTimeout(() => {
        const filters = document.querySelector('#tableID1_filter');

        if (filters) {

        const button = document.createElement("button");
        button.innerText = "Download";
        button.style = "margin-left: 1rem;";

        filters.appendChild(button);

        button.addEventListener('click', () => {
            const json = Array.from(document.querySelectorAll('#tableID1 tr'))
                .map(row => ({
                    date: row.querySelector('td:nth-of-type(1)')?.innerText,
                    location: row.querySelector('td:nth-of-type(2)')?.innerText,
                }))
                .filter(row => !!row.date && !!row.location);

            // Convert JSON to a string
            const jsonString = JSON.stringify(json, null, 2);

            // Create a Blob with the JSON data
            const blob = new Blob([jsonString], { type: 'application/json' });

            // Create a temporary URL for the Blob
            const url = URL.createObjectURL(blob);

            // Create a temporary anchor element for downloading
            const a = document.createElement('a');
            a.href = url;
            a.download = 'table_data.json';

            // Trigger the download
            document.body.appendChild(a);
            a.click();

            // Clean up
            document.body.removeChild(a);
            URL.revokeObjectURL(url);
        });
        }
    }, 100);
})();