Vaccination Bot , Notifies you about the availability of Vaccine for the particular district on telegram . Reference taken from https://github.com/RAvengineer/vad-bot , by @RAvengineer

Vaccination Bot

from requests import get, post
from time import sleep
from datetime import datetime
from random import randint

API_SETU_URL = "https://cdn-api.co-vin.in/api/v2/"
APPOINTMENTS_AVAILABILITY = "appointment/sessions/public/"
CALENDAR_DISTRICT = "calendarByDistrict"
CALENDAR_PINCODE = "calendarByPin"
API_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 Edg/90.0.818.51"
}
PINCODE = 0
DISTRICT_ID = "" ,# Enter Your District Id from "https://github.com/bhattbhavesh91/cowin-vaccination-slot-availability/blob/main/district_mapping.csv"
bot_token = "1892929544:AAHp_ls9b5WeaAqNjONi3IwHmDJMiQqp-J8"
bot_chatID = "XXXX"   # enter bot your telegram chat ID  


def fetchCalendarByDistrict(district_id: str, date: datetime) -> dict:
    params = {"district_id": district_id, "date": date.strftime("%d-%m-%Y")}
    resp = get(
        url=API_SETU_URL + APPOINTMENTS_AVAILABILITY + CALENDAR_DISTRICT,
        params=params,
        headers=API_HEADERS,
    )

    print(f"{str(date)}\tAPI response: {resp.status_code}")
    if resp.status_code != 200:
        return None
    return resp.json()


def getNewCenters(old_centers: list, new_centers: list) -> list:
    x: set = set(old_centers)
    y: set = set(new_centers)
    return list(y.union(x).difference(x))


def fetchCalendarByPinCode(pincode: str, date: datetime) -> dict:
    params = {"pincode": pincode, "date": date.strftime("%d-%m-%Y")}
    resp = get(
        url=API_SETU_URL + APPOINTMENTS_AVAILABILITY + CALENDAR_PINCODE,
        params=params,
        headers=API_HEADERS,
    )

    print(f"{str(date)}\tAPI response: {resp.status_code}")
    if resp.status_code != 200:
        print(f"fetchCalendarByPinCode response: {resp.content}")
        return None
    return resp.json()


def getAvailableCenters(data: dict) -> list:
    available_centers = list()

    for center in data["centers"]:
        for session in center["sessions"]:
            if session["available_capacity"] > 0:
                available_centers.append(
                    f"{center['pincode']} - {center['name']} -- {session['min_age_limit']} -- {session['vaccine']} -- {session['date']} -- D1 --{session['available_capacity_dose1']}--D2 --{session['available_capacity_dose2']} "
                )
            break

    return available_centers


def fetchData() -> dict:
    dt = datetime.now()
    try:
        data = fetchCalendarByDistrict(district_id=DISTRICT_ID, date=dt)
        if not data:
            raise Exception("API_Error: fetchCalendarByDistrict returned None")
        return data
    except:
        error_title = "Error in fetchData: Invalid SEARCH_BY mode."
        error_body = "SEARCH_BY variable in .env should be either DISTRICT or PINCODE"
        raise Exception(error_title + "\n" + error_body)


if __name__ == "__main__":
    try:
        previous_centers = list()
        while True:
            # Fetch & process data
            data = fetchData()
            centers = getNewCenters(
                old_centers=previous_centers, new_centers=getAvailableCenters(data)
            )

            # Avoid Repetition of centers
            # Current solution repeats centers every alternate cycle
            previous_centers = centers
            if centers:
                message = str(datetime.now) + " Vaccination Info "
                message = "\n".join(centers)
                send_text = (
                    "https://api.telegram.org/bot"
                    + bot_token
                    + "/sendMessage?chat_id="
                    + bot_chatID
                    + "&parse_mode=Markdown&text="
                    + message
                )
                response = get(send_text)
                pass
            # APIs are subject to a rate limit of 100 API calls per 5 minutes per IP
            delay_duration = randint(20, 40)
            print(f"Train will depart after {delay_duration} sec")
            sleep(delay_duration)

    except Exception as e:
        print(str(e))