Addict

Addict allows you to manage users registration and authentication on your Phoenix Framework app easily.

What does it do?

For now, it enables your users to register, login, logout and recover/reset their passwords.

Requirements

Addict is dependent on an ecto User model and a database connection interface.

The user model must have at least the following schema:

  field :email, :string
  field :encrypted_password, :string

Plug and go

1 - Add Addict to your dependencies:

 {:addict, "~> 0.3"}

1a - Note that mailgun locks Poison to an old 1.4 version, which may cause conflicts (Poison). There's a fix in place that just hasn't been pushed to hex. Resolve by also adding to your dependencies:

 {:mailgun, github: "chrismccord/mailgun", branch: "master", override: true}

2 - Generate Addict configs via:

mix addict.generate.configs

3 - Generate (opinionated) boilerplate:

mix addict.generate.boilerplate

4 - Add Addict routes to your router.ex:

defmodule YourApp.Router do
  (...)
  use Addict.RoutesHelper
  (...)
  scope "/" do
    # Note that the `addict :routes` call should be inside the global
    # scope rather than your app's scope:
    # (i.e.: `scope "/", YourApp do: ...` vs `scope "/", do ...`)
    # otherwise Phoenix won't be able to find Addict's controllers.
    addict :routes
  end
end

5 - Visit any of these paths on your app

/login
/register
/recover_password
/reset_password

On what does it depend?

Addict depends on:

• Phoenix Framework
• Ecto

Optionally you can make Addict send e-mails for you too. At the moment only Mailgun is supported. Feel free to contribute with another service!

Addict Configs

See all available configurations here.

How can I use it?

Routes

Add the following to your router.ex:

defmodule ExampleApp.Router do
  use Phoenix.Router
  use Addict.RoutesHelper

  ...

  scope "/" do
    addict :routes
  end
end

This will generate the following routes:

        register_path  POST   / register          Addict.Controller.register/2
           login_path  POST   / login             Addict.Controller.login/2
          logout_path  DELETE / logout            Addict.Controller.logout/2
recover_password_path  POST   / recover_password  Addict.Controller.recover_password/2
  reset_password_path  POST   / reset_password    Addict.Controller.reset_password/2

You can also override the path or controller/action for a given route:

addict :routes,
  logout: [path: "/sign-out", controller: ExampleApp.UserController, action: :sign_out],
  recover_password: "/password/recover",
  reset_password: "/password/reset"

These overrides will generate the following routes:

        register_path  POST   / register          Addict.Controller.register/2
           login_path  POST   / login             Addict.Controller.login/2
          logout_path  DELETE / sign-out          ExampleApp.UserController.sign_out/2
recover_password_path  POST   / password/recover  Addict.Controller.recover_password/2
  reset_password_path  POST   / password/reset    Addict.Controller.reset_password/2

Interacting with Addict

After you've added the router and generated the configs, please take look at the optional boilerplate and the Example App. Here are the interesting bits:

• Example AJAX interactions
• AJAX Error Handling
• Restricted login path
• Login Form

Addict Helper

Addict saves information on the logged in user by setting current_user on the user's Session. You might want to use the Addict.Helper module that encapsulates this logic:

• Addict.Helper.current_user/1: Provided the conn, it returns the user model's hash representation, without any associations.
• Addict.Helper.is_logged_in/1: Provided the conn, it returns true if the user is logged in, false otherwise.

Checking for authentication

Use Addict.Plugs.Authenticated plug to validate requests on your controllers:

defmodule MyAwesomeApp.PageController do
  use Phoenix.Controller

  plug Addict.Plugs.Authenticated when action in [:foobar]
  plug :action

  def foobar(conn, _params) do
    render conn, "index.html"
  end

end

If the user is not logged in and requests for the above action, they will be redirected to not_logged_in_url.

Adding Custom Mailer

For adding a custom Mailer just follow the conventions:

• Module must be Addict.Mailers.TheEmailProvider
• Add the Mailer file in /lib/addict/mailers
• Make sure the mailer implements the behaviour defined here

Once that is done, just set mail_service configuration to :the_email_provider.

TODO

Check the issues on this repository to check or track the ongoing improvements and new features.

Contributing

Feel free to send your PR with improvements or corrections!

Special thanks to the folks at #elixir-lang on freenet for being so helpful every damn time!