Doorkeeper - awesome oauth provider for your Rails app.

Doorkeeper is a gem that makes it easy to introduce OAuth 2 provider functionality to your application.

So far it supports only Authorization Code flow, but we will gradually introduce other flows.

For more information about OAuth 2 go to OAuth 2 Specs (Draft).

Installation

Put this in your Gemfile:

gem 'doorkeeper'

Run the installation generator with:

rails generate doorkeeper:install

This will generate the doorkeeper initializer and the oauth tables migration. Don't forget to run the migration in your application:

rake db:migrate

Configuration

The installation will mount the Doorkeeper routes to your app like this:

Rails.application.routes.draw do
  mount Doorkeeper::Engine => "/oauth"
  # your routes
end

This will mount following routes:

GET       /oauth/authorize
POST      /oauth/authorize
DELETE    /oauth/authorize
POST      /oauth/token
resources /oauth/applications

You need to configure Doorkeeper in order to provide resource_owner model and authentication block initializers/doorkeeper.rb

Doorkeeper.configure do
  resource_owner_authenticator do |routes|
    current_user || redirect_to('/sign_in', :alert => "Needs sign in.") # returns nil if current_user is not logged in
  end
end

If you use devise, you may want to use warden to authenticate the block:

resource_owner_authenticator do |routes|
  current_user || warden.authenticate!(:scope => :user)
end

Protecting resources (a.k.a your API endpoint)

In your api controller, add the doorkeeper_for to require the oauth token:

class Api::V1::ProtectedResourcesController < Api::V1::ApiController
  doorkeeper_for :all              # Require access token for all actions
  doorkeeper_for :only   => :index # Only for index action
  doorkeeper_for :except => :show  # All actions except show

  # your actions
end

You don't need to setup any before filter, doorkeeper_for will handle that for you.

Authenticated resource owner

If you want to return data based on the current resource owner for example, the access token user credentials, you'll need to define a method in your controller to return the resource owner instance:

class Api::V1::CredentialsController < Api::V1::ApiController
  doorkeeper_for :all
  respond_to     :json

  # GET /api/v1/me.json
  def me
    respond_with current_resource_owner
  end

  private

  # Find the user that owns the access token
  def current_resource_owner
    User.find(doorkeeper_token.resource_owner_id) if doorkeeper_token
  end
end

Other resources

Live demo

Check out this live demo hosted on heroku. For more demos check out the wiki.

Client applications

After you set up the provider, you may want to create a client application to test the integration. Check out these client examples in our wiki or follow this tutorial here.

Contributing/Development

Want to contribute and don't know where to start? Check out features we're missing, create example apps, integrate the gem with your app and let us know!

Also, check out our contributing guidelines page.

Supported ruby versions

All supported ruby versions are listed here

felipeelias/doorkeeper