Connecting to Channel from within application

Questions & Help Questions
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6

Hi! Sorry to resurrect this. Is this solution still valid? I can’t get it to work. Do I need to set something else up? I believe I have a fairly default setup (see below) using the default generated @session_options in the endpoint. I have confirmed that the session_uuid sent to the genserver is correct. What can I be missing?

endpoint.ex

socket "/socket/session", MyApp.SessionSocket,
    websocket: [connect_info: [session: @session_options]

socket.ex

use Phoenix.Socket
channel "lobby:*", MyApp.Channels.LobbyChannel, websocket: true, longpoll: false

lobby_channel.ex

use Phoenix.Channel
@impl true
def join("lobby:" <> session_uuid, _payload, socket) do
  ...

genServer.ex

use GenServer
def init(session_uuid) do
  MyApp.Endpoint.subscribe("lobby:#{session_uuid}")
  ...
end

def handle_info(msg, state) do
  IO.puts("This never gets called")
end