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chess/lib/chess_web/channels/user_socket.ex
2023-02-04 21:35:56 -06:00

44 lines
1.3 KiB
Elixir

defmodule ChessWeb.UserSocket do
use Phoenix.Socket
alias Phoenix.Token
## Channels
channel("game:*", ChessWeb.GameChannel)
# 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`.
#
# See `Phoenix.Token` documentation for examples in
# performing token verification on connect.
def connect(%{"token" => token}, socket) do
case Token.verify(socket, "game socket", token, max_age: 1_209_600) do
{:ok, user_id} ->
{:ok, assign(socket, :user_id, user_id)}
{:error, _reason} ->
:error
end
end
def connect(%{}, _socket), do: :error
# Socket id's are topics that allow you to identify all sockets for a given user:
#
# def id(socket), do: "users_socket:#{socket.assigns.user_id}"
#
# Would allow you to broadcast a "disconnect" event and terminate
# all active sockets and channels for a given user:
#
# Chess.Endpoint.broadcast("users_socket:#{user.id}", "disconnect", %{})
#
# Returning `nil` makes this socket anonymous.
def id(_socket), do: nil
end