An Uberauth strategy for LINE OAuth2 authentication.

Inspired by Ueberauth for Facebook

If available in Hex, the package can be installed as:

1. Add ueberauth_line to your list of dependencies in mix.exs:

    def deps do
      [{:ueberauth_line, "~> 0.1.2"}]
    end

2. Ensure ueberauth_line is started before your application:

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

3. Add Line to your Überauth configuration:

    config :ueberauth, Ueberauth,
      providers: [
        line: {Ueberauth.Strategy.Line, []}
      ]

4. Update your provider configuration:

    config :ueberauth, Ueberauth.Strategy.Line.OAuth,
      client_id: System.get_env("LINE_CLIENT_ID"),
      client_secret: System.get_env("LINE_CLIENT_SECRET")

5. Include the Überauth plug in your controller:

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

6. 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

Follow instructions here https://developers.line.me/line-login/overview

This library uses Erlang :crypto.strong_rand_bytes for nonce and state generation. Make sure that RAND_bytes method from OpenSSL is available.

A Cowboy Mock server is available for testing purposes. Many thanks to Sophie DeBenedetto for the great tutorial on server mocking in Elixir.