VaccinationAppointmentChecker

This script only checks available vaccination appointments for https://impfterminservice.de and sends a telegram message if appointments are available.
You have to book the appointment manually.
Mediation code needed.

How to get mediation code?

Get mediation code with multiple attempts and waiting time from https://impfterminservice.de (mediation codes are only available if free vaccination events are available) or
Intercept and modify https network traffic for your vaccination centre urls to get code directly:
- GET https://[vaccinationCentreGroup e.g. 001-iz].impfterminservice.de/rest/suche/termincheck: change response from to {"termineVorhanden":true,"vorhandeneLeistungsmerkmale":["L920", "L921"]} and
- POST https://[vaccinationCentreGroup e.g. 001-iz].impfterminservice.de/rest/suche/termincheck/alter: change response to {"einzeltermineVorhanden": false, "terminpaareVorhanden": true} and set HTTP status code 200

copy and rename config.example.json to config.json
fill accessCodeObjects with your data
if you want to set a time range for available events, use event_not_before and event_not_after (ignored if not set or invalid)
Create telegram bot with Botfather (/newbot)
save token as telegram_token to config.json
find out your chat id with IDBot (/getid)
save your telegram chat id to telegram_chatIds to config.json (or use a telegram group and save chat id to telegram_group_chatIds)
send a test message from your telegram account to the newly created bot
script will send you a test message after every start

Create Telegram group
Add your bot to group
Adjust the following settings for your bot with BotFather
- /setprivacy - disabled
- /setjoingroups - enabled
Get the group chat id (e.g. from the JSON of https://api.telegram.org/bot/getUpdates)

npm start