See https://github.com/rishabhp/sso-rails-client/issues/2

sso-rails-client.patch

diff --git b/Gemfile a/Gemfile
index 37bc11c..17145fa 100644
--- b/Gemfile
+++ a/Gemfile
@@ -45,3 +45,7 @@ group :development do
   gem 'spring'
 end
 
+gem 'omniauth'
+gem 'omniauth-oauth2'
+
+gem 'better_errors'
diff --git b/app/controllers/application_controller.rb a/app/controllers/application_controller.rb
index d83690e..a3ccca1 100644
--- b/app/controllers/application_controller.rb
+++ a/app/controllers/application_controller.rb
@@ -2,4 +2,22 @@ class ApplicationController < ActionController::Base
   # Prevent CSRF attacks by raising an exception.
   # For APIs, you may want to use :null_session instead.
   protect_from_forgery with: :exception
+
+  def login_required
+    if !current_user
+      respond_to do |format|
+        format.html  {
+          redirect_to '/auth/sso'
+        }
+        format.json {
+          render :json => { 'error' => 'Access Denied' }.to_json
+        }
+      end
+    end
+  end
+
+  def current_user
+    return nil unless session[:user_id]
+    @current_user ||= User.find_by_uid(session[:user_id]['uid'])
+  end
 end
diff --git b/app/controllers/user_sessions_controller.rb a/app/controllers/user_sessions_controller.rb
new file mode 100644
index 0000000..db437a0
--- /dev/null
+++ a/app/controllers/user_sessions_controller.rb
@@ -0,0 +1,42 @@
+class UserSessionsController < ApplicationController
+  before_filter :login_required, only: [ :destroy ]
+
+  # omniauth callback method
+  #
+  # First the callback operation is done
+  # inside OmniAuth and then this route is called
+  def create
+    omniauth = env['omniauth.auth']
+    logger.debug "+++ #{omniauth}"
+
+    user = User.find_by_uid(omniauth['uid'])
+    if not user
+      # New user registration
+      user = User.new(:uid => omniauth['uid'])
+    end
+    user.email = omniauth['info']['email']
+    user.save
+
+    #p omniauth
+
+    # Currently storing all the info
+    session[:user_id] = omniauth
+
+    flash[:notice] = "Successfully logged in"
+    redirect_to root_path
+  end
+
+  # Omniauth failure callback
+  def failure
+    flash[:notice] = params[:message]
+  end
+
+  # logout - Clear our rack session BUT essentially redirect to the provider
+  # to clean up the Devise session from there too !
+  def destroy
+    session[:user_id] = nil
+
+    flash[:notice] = 'You have successfully signed out!'
+    redirect_to "#{CUSTOM_PROVIDER_URL}/users/sign_out"
+  end
+end
diff --git b/app/models/user.rb a/app/models/user.rb
new file mode 100644
index 0000000..4a57cf0
--- /dev/null
+++ a/app/models/user.rb
@@ -0,0 +1,2 @@
+class User < ActiveRecord::Base
+end
diff --git b/config/environment.rb a/config/environment.rb
index ee8d90d..c944941 100644
--- b/config/environment.rb
+++ a/config/environment.rb
@@ -1,5 +1,6 @@
 # Load the Rails application.
 require File.expand_path('../application', __FILE__)
+require 'sso'
 
 # Initialize the Rails application.
 Rails.application.initialize!
diff --git b/config/initializers/omniauth.rb a/config/initializers/omniauth.rb
new file mode 100644
index 0000000..0f7cd4c
--- /dev/null
+++ a/config/initializers/omniauth.rb
@@ -0,0 +1,10 @@
+# Change this omniauth configuration to point to your registered provider
+# Since this is a registered application, add the app id and secret here
+APP_ID = 'key'
+APP_SECRET = 'secret'
+
+CUSTOM_PROVIDER_URL = 'http://localhost:3000'
+
+Rails.application.config.middleware.use OmniAuth::Builder do
+  provider :sso, APP_ID, APP_SECRET
+end
diff --git b/config/routes.rb a/config/routes.rb
index 3f66539..b3e7d13 100644
--- b/config/routes.rb
+++ a/config/routes.rb
@@ -1,4 +1,13 @@
 Rails.application.routes.draw do
+  root 'home#index'
+
+  # omniauth
+  get '/auth/:provider/callback' => 'user_sessions#create'
+  get '/auth/failure' => 'user_sessions#failure'
+
+  # Custom logout
+  match '/logout', :to => 'user_sessions#destroy', via: :all
+
   # The priority is based upon order of creation: first created -> highest priority.
   # See how all your routes lay out with "rake routes".
 
diff --git b/db/migrate/20150826111506_create_user.rb a/db/migrate/20150826111506_create_user.rb
new file mode 100644
index 0000000..3f84727
--- /dev/null
+++ a/db/migrate/20150826111506_create_user.rb
@@ -0,0 +1,11 @@
+class CreateUser < ActiveRecord::Migration
+  def change
+    create_table :users do |t|
+      t.string :uid
+      t.string :email
+      t.string :status
+
+      t.timestamps
+    end
+  end
+end
diff --git b/lib/sso.rb a/lib/sso.rb
new file mode 100644
index 0000000..65c34c2
--- /dev/null
+++ a/lib/sso.rb
@@ -0,0 +1,36 @@
+require 'omniauth-oauth2'
+module OmniAuth
+  module Strategies
+    class Sso < OmniAuth::Strategies::OAuth2
+
+      CUSTOM_PROVIDER_URL = 'http://localhost:3000'
+
+      option :client_options, {
+        :site =>  CUSTOM_PROVIDER_URL,
+        :authorize_url => "#{CUSTOM_PROVIDER_URL}/auth/sso/authorize",
+        :access_token_url => "#{CUSTOM_PROVIDER_URL}/auth/sso/access_token"
+      }
+
+      uid do
+        raw_info['id']
+      end
+
+      info do
+        {
+          :email => raw_info['info']['email']
+        }
+      end
+
+      extra do
+        {
+          :first_name => raw_info['extra']['first_name'],
+          :last_name  => raw_info['extra']['last_name']
+        }
+      end
+
+      def raw_info
+        @raw_info ||= access_token.get("/auth/sso/user.json?oauth_token=#{access_token.token}").parsed
+      end
+    end
+  end
+end