swagger-ui-401.user.js

// ==UserScript==
// @name         Swagger Auto-Login on 401 (Verbose)
// @namespace    http://tampermonkey.net/
// @version      1.3
// @description  Opens Swagger UI login dialog automatically if 401 Unauthorized response recieved
// @match        *://*/swagger*
// @grant        none
// ==/UserScript==

(function () {
    'use strict';

    console.info('[TM-Swagger401] Script initialized');

    function openAuthorizeDialog(retries = 10, delay = 500) {
        let attempts = 0;
        (function tryClick() {
            const btn = document.querySelector('.swagger-ui .auth-wrapper .authorize');
            if (btn) {
                btn.click();
            } else if (attempts++ < retries) {
                setTimeout(tryClick, delay);
            } else {
                console.error('[TM-Swagger401] Authorize button not found after retries');
            }
        })();
    }

    const originalFetch = window.fetch;
    window.fetch = async function (...args) {
        console.debug('[TM-Swagger401] fetch:', args);
        try {
            const res = await originalFetch.apply(this, args);
            if (res.status === 401) {
                console.warn(`[TM-Swagger401] 401 from fetch ${args[0]}`);
                openAuthorizeDialog();
            }
            return res;
        } catch (err) {
            console.error('[TM-Swagger401] fetch error:', err);
            throw err;
        }
    };
})();