bukk530 / railsbook

The Facebook SDK for Rails4 provides a native interface to the Graph API and Facebook Login. It is based on the Offical Facebook PHP SDK.

Railsbook - Facebook SDK for Rails4!

Introduction

This SDK is based on the offical Facebook PHP SDK

Usage

Configuration

To start using this gem you need to include it in your Rails4 app Gemfile:

#gem RailsBook
gem 'railsbook', github: 'bukk530/railsbook'

Save your Gemfile and run:

bundle install

Now that you have installed RailsBook you need to configure your Facebook App!

Do:

rails g rails_book:config

to generate a config/facebook_app.yml configuration file.

Open config/facebook_app.yml, it should look like this:

app_id: "YOUR APP ID"
app_secret: "YOUR SECRET"

Now go to your Facebook application and replace the App Id and Secret in your config file

If you use Git, do:

git add config/initializers/facebook.rb
git add config/facebook_app.yml

Now you should be able to play with the SDK!

Usage

Ok let's start with a simple login page:

routes.rb

Rails.application.routes.draw do
  root				   "fb_login_controller#show_login"
  get "/login",    to: "fb_login_controller#login",        as: :login
end

fb_login_controller.rb

class FbLoginController < ApplicationController
	include RailsBook
	
	# Initialize our helper (in a future version this will be a real rails helper)
	before_action do
		@facebook_login_helper = FacebookRedirectLoginHelper.new login_url, session, params
	end
	
	# In this page we will ask the user to log in via Facebook
	def show_login
		@facebook_login_url = @facebook_login_helper.get_login_url
	end
	
	# This page is called back from Facebook after the user logged in
	def login
	  facebook_session = @facebook_login_helper.get_session_from_redirect
	  @user = FacebookRequest.new(facebook_session, 'GET', '/me').execute.response
	end
end

show_login.html.erb

<a href="<%= @facebook_login_url %>">Login via Facebook!</a>

login.html.erb

<h1>Halo <%= @user['name'] %></h1>