1. // ==UserScript==
2. // @name Auto Fetch
3. // @namespace anonDeveloper
4. // @description This script will automagically blah blah blah
5. // @include https://ais.usvisa-info.com/en-ca/niv/schedule/*/appointment
6. // @require https://code.jquery.com/jquery-3.6.0.min.js
7.  
8. // ==/UserScript==
9.  
10. console.log('Hello From Auto Fetcher!');
11.  
12.  
13.  
14. async function ajax() {
15.         console.log('Getting all available dates...');
16.   let found = false;
17.           for (let i = 0; i < 10000000; i++) {
18.         if (found) {
19.           break;
20.         }
21.      
22.         let href = $(location).attr('href');
23.         const aprtId = href.split("/")[6];
24.  
25.        
26.         // sending ais-usvisa to get the available dates
27.        
28.         let appointmentUrl = 'https://ais.usvisa-info.com/en-ca/niv/schedule/' + aprtId + '/appointment/days/95.json?appointments[expedite]=false';
29.         // 95.json refers to Vancouver, 89.json is Calgary
30.         console.log(`Sending ${i} request to appointment Url: ${appointmentUrl}`);
31.         $.ajax ({
32.           type:       'GET',
33.           url:         appointmentUrl,
34.           dataType:   'JSON',
35.           success:    function (apiJson) {
36.            
37.             for (let i = 0; i <= 5; i++) {
38.               let availableDate = new Date(apiJson[i].date);
39.               console.log(`Current time ${new Date()}, the ${i}th available date is: " ${availableDate}`);
40.              
41.               var current = new Date();
42.               var tar1 = new Date("2022-09-24");
43.               var tar2 = new Date("2022-10-15");
44.               var tar3 = new Date("2022-11-07");
45.              
46.               if (availableDate <= tar1 || tar2 <= availableDate && availableDate <= tar3) {
47.                 const audio = new Audio("https://cdn.freesound.org/previews/91/91926_7037-lq.mp3");
48.                                                         audio.play();
49.                 alert(`Congratulations! Found a target date ${availableDate}`);
50.                 found = true;
51.                 break;
52.               } else {
53.                 console.log("No target date found, continue.");
54.               }
55.             }
56.           }  // success
57.         }); // ajax
58.      
59.         console.log(`Waiting ${60} seconds...`);
60.         await sleep(60000);
61.        
62.        
63.     }
64.     console.log('Done');
65. }
66.  
67. $(document).ready(function() {
68.   console.log('Ready...');
69.   ajax();
70.  
71. });
72.  
73.  
74.  
75. function sleep(ms) {
76.     return new Promise(resolve => setTimeout(resolve, ms));
77. }
78.  
79.