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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.

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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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