How to catch reboot on heroku server?

Question

Heroku

How can I catch a reload on heroku so I can make a reload notification through the VK bot?

Answer 1

In theory, you can try to catch the SIGTERM signal and do something before restarting. But whether it can be done in practice - I do not know. Need to try.
https://devcenter.heroku.com/articles/dynos#restarting