audit-channel.ex

** (exit) an exception was raised:
    ** (FunctionClauseError) no function clause matching in Phoenix.Transports.WebSocket.ws_info/2
        (phoenix) lib/phoenix/transports/websocket.ex:67: Phoenix.Transports.WebSocket.ws_info(%{"behaviour" => "behaviours/global/my.behaviour", "post" => %{"demographics" => [%{"hospital_number" => "54321", "nhs_number" => "1234"}], "diagnosis" => %{"condition" => "CAP"}}, "pre" => %{"demographics" => [%{"hospital_number" => "54321", "nhs_number" => "1234"}], "diagnosis" => %{"condition" => "CAP"}}, "success" => true}, %{router: Cedar.Router, serializer: Phoenix.Transports.JSONSerializer, sockets: #HashDict<[{"audit:all", %Phoenix.Socket{assigns: %{}, authorized: true, channel: Cedar.AuditChannel, pid: #PID<0.419.0>, router: Cedar.Router, topic: "audit:all", transport: Phoenix.Transports.WebSocket}}]>})
        (phoenix) lib/phoenix/endpoint/cowboy_websocket.ex:62: Phoenix.Endpoint.CowboyWebSocket.websocket_info/3
        (cowboy) src/cowboy_websocket.erl:588: :cowboy_websocket.handler_call/7
        (phoenix) lib/phoenix/endpoint/cowboy_websocket.ex:11: Phoenix.Endpoint.CowboyWebSocket.resume/4
        (phoenix) lib/phoenix/endpoint/cowboy_handler.ex:62: Phoenix.Endpoint.CowboyHandler.upgrade/4
        (cowboy) src/cowboy_protocol.erl:435: :cowboy_protocol.execute/4
        
        
        
# Called with (following https://github.com/lancehalvorsen/phoenix-guides/blob/master/G_channels.md for docs)
Phoenix.PubSub.broadcast("audit:all", blob)

# Also with Phoenix.PubSub.broadcast("audit:all", {:message, "It Works!"})
        
# Channel looks like 
defmodule Cedar.AuditChannel do
  use Phoenix.Channel

 def join("audit:all", _message, socket) do
    {:ok, socket}
  end

  def leave(_reason, socket) do
    {:ok, socket}
  end
end


# Router config is 

  socket "/ws", Cedar do
    channel "audit:*", AuditChannel
  end