covid-vaccination-center-availability.py

import requests
import datetime
import pytz
import smtplib, ssl
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
import time

smtp_server = "smtp.gmail.com"
port = 587
context = ssl.create_default_context()
today_date = datetime.datetime.now(pytz.timezone('Asia/Kolkata'))
DATE_TO_SEARCH = "{:02d}-{:02d}-{}".format(today_date.day, today_date.month, today_date.year)

####### Config you need to set ##############

AGE_LIMIT_SEARCH = 18
PINCODE = 854301
TIME_INTERVAL_IN_MINUTES = 10

sender_email = ""
password = ""

if __name__ == '__main__':
    count = 1
    while 1 == 1:
        print("Fetching {}  ....".format(count))
        count = count + 1
        url = "https://cdn-api.co-vin.in/api/v2/appointment/sessions/public/calendarByPin?pincode={}&date={}".format(
            PINCODE, DATE_TO_SEARCH)
        headers = {
            'user-agent': "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36"
        }
        resp = requests.get(url, headers=headers)
        centers = resp.json()["centers"]
        available_centers = []
        for center in centers:
            sessions = center["sessions"]
            for session in sessions:
                if session["available_capacity"] > 0 and session['min_age_limit'] == AGE_LIMIT_SEARCH:
                    center_details = dict(
                        name=center['name'],
                        block_name=center['block_name'],
                        pincode=center['pincode'],
                        date=session['date'],
                        available_capacity=session['available_capacity'],
                        vaccine_name=session['vaccine']
                    )
                    available_centers.append(center_details)
        if len(available_centers) == 0:
            print("No availability from date {} and for age group more than {} in pincode {}".format(
                DATE_TO_SEARCH, AGE_LIMIT_SEARCH, PINCODE
            ))
            print("sleeping ...")
            time.sleep(TIME_INTERVAL_IN_MINUTES * 60)
            continue

        message = "Subject: Vaccination Centers Available\n"
        for available_center in available_centers:
            current_center = "Date : {}, PinCode : {}, Center Name : {}, Block Name : {}, capacity: {}, vaccine : {}\n".format(
                available_center['date'], available_center['pincode'], available_center['name'],
                available_center['block_name'],
                available_center['available_capacity'], available_center['vaccine_name']
            )
            message = message + current_center
        print(message)
        try:
            msg = MIMEMultipart()
            msg['From'] = sender_email
            msg['To'] = "[email protected]"
            msg['Subject'] = "Vaccination-Centers-Available"
            msg.attach(MIMEText(message, 'plain'))
            server = smtplib.SMTP(smtp_server, port)
            server.starttls(context=context)
            server.login(sender_email, password)
            server.sendmail(sender_email, "[email protected]", msg.as_string())
            print("Email Sent")
        except Exception as e:
            print("email sent error")
            print(e)
        finally:
            server.quit()
        print("sleeping ...")
        time.sleep(TIME_INTERVAL_IN_MINUTES * 60)

I have updated it at my repo, now this script can find available centers within a date range (today + next 10 days) within multiple pincodes.
As some metro cities have multiple pincodes.

Add user-agent header if getting 403 status code

Add user-agent header if getting 403 status code

Thanks @harshvladha