varun160490 · June 9, 2021 06:07 · varun160490 · May 7, 2021 · shantanuroy4u · May 24, 2021
diff --git a/cowin_vaccination.js b/cowin_vaccination.js
 // This javascript code will alert you whenever some slot opens up on the given date within the given pincodes.
 // This script will run every 2 seconds and check for availability of slots.

 // Steps to use
 // 1. Update pincodes,age,district_id,vaccine & vaccine_date. 
 // 2. Login to https://selfregistration.cowin.gov.in/
 // 3. Right Click on the website
 // 4. Click on Inspect
 // 5. Switch to the Console Tab on the recently opened Inspect window
 // 6. Copy paste the contents of this entire file - cowin_vaccination.js
 // 7. Press Enter


 var sleepNow = (delay) => new Promise((resolve) => setTimeout(resolve, delay))
 var trialCounter = 1;

 // Change the pincodes as per your city
 var pincodes = [411001,411028,411057,410506,410501,411027,411017,411006,411033,411035,411041,412115,411044,411011,411027,411026,411001,411038,411018];

 // Change the age as per your requirement
 var age = 18; //45,18

 // Change the distric id as per the city you are living in
 var district_id = 363;

 // Change the vaccine as per your need. Check comments on how to get distric id. 
 var vaccine = "COVAXIN"; // COVISHIELD,COVAXIN

 // change the date to the date of slot booking
 var vaccine_date = "29-05-2021"; 

 // Enter dose = 1 for first dose, dose = 2 for second dose
 var dose = 1;

 function httpGet(theUrl)
 {
    var xmlHttp = new XMLHttpRequest();
    xmlHttp.open( "GET", theUrl, false ); // false for synchronous request
    xmlHttp.send( null );
    return xmlHttp.responseText;
 }

 async function fetchByDistrict() {
    console.log("Check: ", trialCounter++);
    url = "https://cdn-api.co-vin.in/api/v2/appointment/sessions/public/calendarByDistrict?district_id="+district_id+"&date="+vaccine_date;
    	
 	try {
 	  centers = JSON.parse(httpGet(url)).centers;
 	} catch(e) {
 	  console.log("error");
 	}
 			
 	for (i in centers) { 
 		center = centers[i];
 		 for (j in center.sessions) {
 			session = center.sessions[j];
 			//console.log(session);
 			
 			var available_capacity = 0;
 			if(dose==1)
 				available_capacity = session.available_capacity_dose1;
 			else if(dose==2)
 				available_capacity = session.available_capacity_dose2;
 				
 			if (session.min_age_limit == age && session.available_capacity > 0 && session.vaccine == vaccine && pincodes.includes(center.pincode)) {
 				console.log("Vaccines available at : ", center.pincode, center.name, session.available_capacity);
 				var audio = new Audio('https://media.geeksforgeeks.org/wp-content/uploads/20190531135120/beep.mp3');
 				audio.play();
 			}
        }	 
 	} 
 	await sleepNow(2000);
    fetchByDistrict();  
 }

 fetchByDistrict();
	// This javascript code will alert you whenever some slot opens up on the given date within the given pincodes.
	// This script will run every 2 seconds and check for availability of slots.

	// Steps to use
	// 1. Update pincodes,age,district_id,vaccine & vaccine_date.
	// 2. Login to https://selfregistration.cowin.gov.in/
	// 3. Right Click on the website
	// 4. Click on Inspect
	// 5. Switch to the Console Tab on the recently opened Inspect window
	// 6. Copy paste the contents of this entire file - cowin_vaccination.js
	// 7. Press Enter


	var sleepNow = (delay) => new Promise((resolve) => setTimeout(resolve, delay))
	var trialCounter = 1;

	// Change the pincodes as per your city
	var pincodes = [411001,411028,411057,410506,410501,411027,411017,411006,411033,411035,411041,412115,411044,411011,411027,411026,411001,411038,411018];

	// Change the age as per your requirement
	var age = 18; //45,18

	// Change the distric id as per the city you are living in
	var district_id = 363;

	// Change the vaccine as per your need. Check comments on how to get distric id.
	var vaccine = "COVAXIN"; // COVISHIELD,COVAXIN

	// change the date to the date of slot booking
	var vaccine_date = "29-05-2021";

	// Enter dose = 1 for first dose, dose = 2 for second dose
	var dose = 1;

	function httpGet(theUrl)
	{
	var xmlHttp = new XMLHttpRequest();
	xmlHttp.open( "GET", theUrl, false ); // false for synchronous request
	xmlHttp.send( null );
	return xmlHttp.responseText;
	}

	async function fetchByDistrict() {
	console.log("Check: ", trialCounter++);
	url = "https://cdn-api.co-vin.in/api/v2/appointment/sessions/public/calendarByDistrict?district_id="+district_id+"&date="+vaccine_date;

	try {
	centers = JSON.parse(httpGet(url)).centers;
	} catch(e) {
	console.log("error");
	}

	for (i in centers) {
	center = centers[i];
	for (j in center.sessions) {
	session = center.sessions[j];
	//console.log(session);

	var available_capacity = 0;
	if(dose==1)
	available_capacity = session.available_capacity_dose1;
	else if(dose==2)
	available_capacity = session.available_capacity_dose2;

	if (session.min_age_limit == age && session.available_capacity > 0 && session.vaccine == vaccine && pincodes.includes(center.pincode)) {
	console.log("Vaccines available at : ", center.pincode, center.name, session.available_capacity);
	var audio = new Audio('https://media.geeksforgeeks.org/wp-content/uploads/20190531135120/beep.mp3');
	audio.play();
	}
	}
	}
	await sleepNow(2000);
	fetchByDistrict();
	}

	fetchByDistrict();