NodevemberChat

Requirements

• Elixir
  • Erlang
• Phoenix
• Node

Steps

Part I

$ mix phoenix.new nodevember_chat --no-ecto
$ iex -S mix phoenix.server

Part II

Uncomment channel macro in web/channels/user_socket.ex to send "rooms:*" messages to the RoomChannel.

Part III

Add RoomChannel to web/channels and define a the join function

defmodule NodevemberChat.RoomChannel do
  use Phoenix.Channel

  def join("rooms:lobby", _message, socket) do
    {:ok, socket}
  end
end

Part IV

Ensure that socket.js gets loaded and tell the socket to join the "rooms:lobby" channel/topic. Note the live code reloading and the join log in the console.

Part V

Add jQuery and markup for chat. Add JS to push to channel and receive events from channel.

Part VI

Add the handle_in function in the RoomChannel to broadcast message to clients. Also add the handle_out function for fun.

You could also broadcast to the chat from Iex via the Endpoint:

NodevemberChat.Endpoint.broadcast! "rooms:lobby", "new_msg", %{body: "from Iex"}

Part VII

Add the secret_key_base: System.get_env("SECRET_KEY_BASE") to config/prod.exs and remove call to the config/prod.secret.exs call at the bottom of that file.

$ heroku apps:create nodevemberchat --buildpack https://github.com/hashnuke/heroku-buildpack-elixir
$ heroku buildpacks:add https://github.com/gjaldon/heroku-buildpack-phoenix-static.git
$ heroku config:set SECRET_KEY_BASE=somesecretkey
$ git push heroku master
$ herok apps:open

---

To start your Phoenix app:

1. Install dependencies with mix deps.get
2. Start Phoenix endpoint with mix phoenix.server

Now you can visit localhost:4000 from your browser.

Ready to run in production? Please check our deployment guides.

Learn more

• Official website: http://www.phoenixframework.org/
• Guides: http://phoenixframework.org/docs/overview
• Docs: http://hexdocs.pm/phoenix
• Mailing list: http://groups.google.com/group/phoenix-talk
• Source: https://github.com/phoenixframework/phoenix