How can I schedule code to run every few hours in Elixir or Phoenix framework?

Question

So let\'s say I want to send a bunch of emails or recreate sitemap or whatever every 4 hours, how would I do that in Phoenix or just with Elixir?

Answer 1

Quantum lets you create, find and delete jobs at runtime.

Furthermore, you can pass arguments to the task function when creating a cronjob, and even modify the timezone if you're not happy with UTC.

If your app is running as multiple isolated instances (e.g. Heroku), there are job processors backed by PostgreSQL or Redis, that also support task scheduling:

Oban: https://github.com/sorentwo/oban

Exq: https://github.com/akira/exq

Toniq: https://github.com/joakimk/toniq

Verk: https://github.com/edgurgel/verk