Überauth Auth0

Auth0 OAuth2 strategy for Überauth.

Installation

1. Set up your Auth0 application at Auth0 dashboard.

2. Add :ueberauth_auth0 to your list of dependencies in mix.exs:

   def deps do
     [
       {:ueberauth_auth0, "~> 2.0"}
     ]
   end

3. Ensure ueberauth_auth0 is started before your application:

   def application do
     [
       applications: [:ueberauth_auth0]
     ]
   end

4. Add Auth0 to your Überauth configuration:

   config :ueberauth, Ueberauth,
     providers: [
       auth0: {Ueberauth.Strategy.Auth0, []}
     ],
     # If you wish to customize the OAuth serializer,
     # add the line below. Defaults to Jason.
     json_library: Poison

   or with per-app config:

   config :my_app, Ueberauth,
     providers: [
       auth0: {Ueberauth.Strategy.Auth0, [otp_app: :my_app]}
     ]

5. Update your provider configuration:

   config :ueberauth, Ueberauth.Strategy.Auth0.OAuth,
     domain: System.get_env("AUTH0_DOMAIN"),
     client_id: System.get_env("AUTH0_CLIENT_ID"),
     client_secret: System.get_env("AUTH0_CLIENT_SECRET")

   or with per-app config:

   config :my_app, Ueberauth.Strategy.Auth0.OAuth,
     domain: System.get_env("AUTH0_DOMAIN"),
     client_id: System.get_env("AUTH0_CLIENT_ID"),
     client_secret: System.get_env("AUTH0_CLIENT_SECRET")

   or with computed configurations:

   defmodule MyApp.ConfigFrom do
     def get_domain(%Plug.Conn{} = conn) do
       ...
     end
   
     def get_client_id(%Plug.Conn{} = conn) do
       ...
     end
   
     def get_client_secret(%Plug.Conn{} = conn) do
       ...
     end
   end

   config :ueberauth, Ueberauth.Strategy.Auth0.OAuth,
     config_from: MyApp.ConfigFrom

   See the Ueberauth.Strategy.Auth0 module docs for more configuration options.

6. Include the Überauth plug in your controller:

   defmodule MyApp.AuthController do
     use MyApp.Web, :controller
     plug Ueberauth
     ...
   end

   or with per-app config:

   defmodule MyApp.AuthController do
     use MyApp.Web, :controller
     plug Ueberauth, otp_app: :my_app
     ...
   end

7. Create the request and callback routes if you haven't already:

   scope "/auth", MyApp do
     pipe_through :browser
   
     get "/:provider", AuthController, :request
     get "/:provider/callback", AuthController, :callback
   end

8. You controller needs to implement callbacks to deal with Ueberauth.Auth and Ueberauth.Failure responses.

For an example implementation see the Überauth Example application.

Learn about OAuth2

OAuth2 explained with cute shapes

Copyright and License

Copyright (c) 2015 Son Tran-Nguyen
Copyright (c) 2020 Klemen Sever

This library is released under the MIT License. See the LICENSE.md file for further details.