drKreso

RSpec.feature 'Facebook login management', type: :feature do
  before(:each) do
    OmniAuth.config.test_mode = true
    mock_auth_hash
  end
  scenario 'Should login over facebokok do
    visit '/users/sign_up'
    click_on 'Facebook OAuth'
    #.....
  end

drKreso

module OmniauthMacros
  def mock_auth_hash
    OmniAuth.config.mock_auth[:default] = OmniAuth::AuthHash.new(
      'provider' => 'facebook',
      'uid' => '123545',
      'info' => {
        'name' => 'mockuser',
        'image' => 'mock_user_thumbnail_url',
        'first_name' => 'john',
        'last_name' => 'doe',

drKreso

# config/initializers/oauth.rb
on_failure do |env|
  #we need to setup env
  if env['omniauth.params'].present
    env["devise.mapping"] = Devise.mappings[:user]
  end
  Devise::OmniauthCallbacksController.action(:failure).call(env)
end

drKreso

<%-# app/views/devise/sessions/new.html.erb -%>
<%-# put these three lines -%>
<%= link_to('/users/auth/facebook', {:class => "btn btn-primary"}) do %>
  Facebook OAuth
<%- end %>
<br/>

# before this line
<%= render "devise/shared/links" %>

drKreso

#execute in terminal
rails generate devise:views

drKreso

# config/routes.rb
devise_for :users
devise_scope :user do
  get "/users/auth/facebook/callback" => "users/omniauth_callbacks#facebook"
end

drKreso

# config/initializers/oauth.rb
Rails.application.config.middleware.use OmniAuth::Builder do
  provider :facebook,
           ENV['FACEBOOK_APP_ID'],
           ENV['FACEBOOK_SECRET_ID'],
           scope: 'email',
           info_fields: 'email',
           auth_type: 'rerequest'

  configure do |config|

drKreso

# app/models/user.rb
# devise :omniauthable, omniauth_providers: [:facebook]

drKreso

#config/initializers/devise.rb
#config.omniauth :facebook, ENV['FACEBOOK_APP_ID'], ENV['FACEBOOK_SECRET_ID'],
#                 scope: 'email',
#                 info_fields: 'email'

drKreso

# execute from terminal
rails generate migration add_oauth_fields_to_users provider:string uid:string
rake db:migrate