birdy_chat/lib/birdy_chat_web/channels/server_socket.ex

44 lines
1.5 KiB
Elixir

defmodule BirdyChatWeb.ServerSocket do
use Phoenix.Socket
# A Socket handler
#
# It's possible to control the websocket connection and
# assign values that can be accessed by your channel topics.
## Channels
channel "server:*", BirdyChatWeb.ServerChannel
# Socket params are passed from the client and can
# be used to verify and authenticate a user. After
# verification, you can put default assigns into
# the socket that will be set for all channels, ie
#
# {:ok, assign(socket, :user_id, verified_user_id)}
#
# To deny connection, return `:error` or `{:error, term}`. To control the
# response the client receives in that case, [define an error handler in the
# websocket
# configuration](https://hexdocs.pm/phoenix/Phoenix.Endpoint.html#socket/3-websocket-configuration).
#
# See `Phoenix.Token` documentation for examples in
# performing token verification on connect.
@impl true
def connect(_params, socket, _connect_info) do
{:ok, socket}
end
# Socket IDs are topics that allow you to identify all sockets for a given user:
#
# def id(socket), do: "user_socket:#{socket.assigns.user_id}"
#
# Would allow you to broadcast a "disconnect" event and terminate
# all active sockets and channels for a given user:
#
# Elixir.BirdyChatWeb.Endpoint.broadcast("user_socket:#{user.id}", "disconnect", %{})
#
# Returning `nil` makes this socket anonymous.
@impl true
def id(socket), do: "user_socket:#{socket.assigns.server_id}"
end