Initialise Phoenix application

[SimonLab]

linked to dwyl/auth#40 (comment)

• Create a new Phoenix application with mix phx.new auth-mvp --app auth_mvp . We might need to render some html from the auth application so I'm not adding the --no-webpack and --no-html option

• Use elixir-auth-google and elixir-auth-github

  • Add the packages as dependencies
  • Create /auth/urls endpoint using the api scope and returns the list of the oauth urls
  • Create callback endpoints. These endpoints are were the Google and Github application will send the token once the user authenticate. /auth/google/callback and `/auth/github/callback

• Allow Cross Origin Resource Sharing to allow requests to access the auth api endpoints

  • Add the cors_plug dependency
  • Update the endpoint.ex file to add the line plug CORSPlug, origin: ["*"]

• Deploy the application on Heroku

  • Define the callback url to match the heroku name of the application. This allow the /api/auth/github/callback (and the google one) to be available for the Oauth apps
  • Generate a new secret key and add it to the environment variables on Heroku, mix phx.gen.secret
  • Add Postgres resource on Heroku
  • Follow the heroku deployment guide to make sure the application is ready: https://hexdocs.pm/phoenix/heroku.html

[SimonLab]

elixir_auth_google has just been updated: dwyl/elixir-auth-google#34 (comment)

Updating the dependency and the code now

[SimonLab]

Focusing now on adding tests for the 3 endpoints:

auth-mvp/lib/auth_mvp_web/router.ex

Lines 23 to 29 in 72d883c

	scope "/", AuthMvpWeb do
	pipe_through :api
	get "/auth/google/callback", GoogleAuthController, :index
	get "/auth/github/callback", GithubAuthController, :index
	get "/auth/urls", AuthUrlController, :index
	end

The packages elixir_auth_google and elixir_auth_github are sending request to the Oauth apps, however as these packages are already tested and the tests for auth should focus on the logic of the controller, I'm thinking to mock the functions linked to these two packages.

see http://blog.plataformatec.com.br/2015/10/mocks-and-explicit-contracts/

[nelsonic]

This is done. 👍