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?
There is a simple alternative that does not require any external dependencies:
defmodule MyApp.Periodically do
use GenServer
def start_link(_opts) do
GenServer.start_link(__MODULE__, %{})
end
def init(state) do
schedule_work() # Schedule work to be performed at some point
{:ok, state}
end
def handle_info(:work, state) do
# Do the work you desire here
schedule_work() # Reschedule once more
{:noreply, state}
end
defp schedule_work() do
Process.send_after(self(), :work, 2 * 60 * 60 * 1000) # In 2 hours
end
end
Now in your supervision tree:
children = [
MyApp.Periodically
]
Supervisor.start_link(children, strategy: :one_for_one)