June 7th, 2021 × #vaccine#covid19#javascript

Hasty Treat - Making a Vaccine Bot with JavaScript

Wes talks about how he built a Telegram bot using Node.js that constantly polled COVID vaccine availability APIs and notified him when appointments became available so he could quickly book one.


In this Hasty Treat, Scott and Wes talk about Wes' experiment building a vaccine bot!

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Show Notes

07:32 - First step

  • Finding the data. Open up dev tools.
  • Copy as Node.js Fetch in Chrome
  • Two ways to do this - Puppeteer, or raw requests, or a mix.

11:03 - Variablizing it

  • Store IDs
  • Booking form IDs
  • Vaccine IDs

12:56 - Finding out any restrictions

  • Is there a cookie?
  • Is there an XSRF?
  • Do these things change?
  • How often can you hit it?

15:20 - Caching

  • Array variable

16:59 - Delivering the notifications

  • Telegram

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