charleshan / programming-phoenix

Step-by-step source code for Programming Phoenix book written by Chris McCord, Bruce Tate, and José Valim

Programming Phoenix

This repository contains the source code for Programming Phoenix book written by Chris McCord, Bruce Tate, and José Valim. You can follow along the book or jump to a section by using git tags.

How to use

1. Get the source code
   • Clone the project with git clone https://github.com/omin/programming-phoenix.git
   • Goto the project directory with cd programming-phoenix
2. Goto to a section

• The book uses file path of the source code to indicate the code changes.
• Goto any state of the project with git checkout TAG_NAME
• e.g. git checkout channels/listings/rumbl/web/static/js/video.change6.js

3. To start your Phoenix app:

• Goto the sub-project directory (hello, rumbl, or rumbrella) with cd PATH
• Install dependencies with mix deps.get
• Create and migrate your database with mix ecto.create && mix ecto.migrate
• Install Node.js dependencies with npm install
• Start Phoenix endpoint with mix phoenix.server

Here's a combination of all the commands above to save you some typing

• mix deps.get && mix ecto.create && mix ecto.migrate && npm install && 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: https://hexdocs.pm/phoenix
• Mailing list: http://groups.google.com/group/phoenix-talk
• Source: https://github.com/phoenixframework/phoenix

Disclaimer: the most up-to-date source code can be found on the official Pragprog website but please do feel free to create github issues if you run accross any problems.

programming-phoenix's Issues

Could not load config config/dev.secret.exs

The problem starts from Chapter 11: OTP (otp/listings/rumbl/mix.change1.exs)

$ mix deps.get
** (Mix.Config.LoadError) could not load config config/dev.secret.exs
    ** (Code.LoadError) could not load /Users/User/Documents/Programming/elixir/programming_phoenix/rumbl/config/dev.secret.exs
    (elixir) lib/code.ex:657: Code.find_file/2
    (elixir) lib/code.ex:295: Code.eval_file/2
    (mix) lib/mix/config.ex:161: Mix.Config.read!/1
    (mix) lib/mix/config.ex:195: anonymous fn/2 in Mix.Config.read_wildcard!/1
    (elixir) lib/enum.ex:1623: Enum."-reduce/3-lists^foldl/2-0-"/3
    (stdlib) erl_eval.erl:670: :erl_eval.do_apply/6
    (stdlib) erl_eval.erl:878: :erl_eval.expr_list/6
    (stdlib) erl_eval.erl:404: :erl_eval.expr/5

The project follows the convention of using .gitignore to exclude secrets from git. This means that we set up the configuration file using a API key from Wolfram Alpha Developer Portal. Maybe we can include the secret.exs for the sake of simplicity.

InfoSys.await_results can receive :DOWN before :results

https://github.com/charleshan/programming-phoenix/blob/master/rumbrella/apps/info_sys/lib/info_sys/info_sys.ex#L51

I'm currently reading the book, and when I got to this part, await_results is receiving :DOWN before :results

https://imgur.com/a/A2hKx

test "new annotations triggers InfoSys" fails

It seems like the reaon it's failing is because @http Application.get_env(:info_sys, :wolfram)[:http_client] || :httpc is returning the :httpc option when I run tests from rumbl umbrella app.

$ mix test
==> info_sys
....

Finished in 0.1 seconds
4 tests, 0 failures

Randomized with seed 250210
==> rumbl
............................

  1) test new annotations triggers InfoSys (Rumbl.Channels.VideoChannelTest)
     test/channels/video_channel_test.exs:32
     No message matching %Phoenix.Socket.Broadcast{event: "new_annotation", payload: %{body: "2", at: 123}} after 100ms.
     Process mailbox:
       %Phoenix.Socket.Message{event: "new_annotation", payload: %{at: 123, body: "1 + 1", id: 94, user: %{id: 568, username: "user4CAB69827EA3D983"}}, ref: nil, topic: "videos:252"}
     stacktrace:
       test/channels/video_channel_test.exs:37: (test)

.......

Finished in 0.6 seconds
36 tests, 1 failure

Randomized with seed 505551