Usually You would use the endpoint to broadcast anywhere from Phoenix…
But in your case, You might as well create a channel, and use Phoenix pubsub directly.
What I usually do is create a notifier module, like this…
defmodule KokoWeb.Notifier do
require Logger
alias KokoWeb.Endpoint
def notify(%{payload: %{id: id, user_id: user_id}, type: :game_left}) do
Endpoint.broadcast!("world:#{id}", "world_left", %{id: user_id})
end
def notify(%{payload: %{from: from, to: to}, type: :ping}) do
Endpoint.broadcast!("user:#{to}", "ping", %{from: from})
end
def notify(message) do
Logger.debug(fn -> "Unknown notification #{inspect(message)}" end)
end
end
I can use this module from my server.
Enjoy the challenge!