create environment variables files in rails

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config/environment_variables.yml:-
development:
  DEV_TWITTER_KEY: AQ01uxmLsGnCU1SpkuwrwPc9l
  DEV_TWITTER_SECRET: srSrs9fc1zDy6enD1zsHE1zdyiMGMn
fp8yYePjMx8CmemVNYO3
  DEV_FACEBOOK_KEY: '1374702796089833'
  DEV_FACEBOOK_SECRET: 2aa34dfb69c3749dcd646a0a4239a072

production:

  TWITTER_KEY: cFXhhlfWanscuTkldGkM5GVLC
  TWITTER_SECRET: 5k3ysJVPfEEgQMzaZ6aN7QqOtfIbUxOUKIJVvTf9kMcdqZLjEH

Load environment variables file:-

config/initializer/
environment_variables.rb:-

module EnvironmentVariables
  class Application < Rails::Application
    config.before_configuration do
      env_file = Rails.root.join("config", 'environment_variables.yml').to_s

      if File.exists?(env_file)
        YAML.load_file(env_file)[Rails.env].each do |key, value|
          ENV[key.to_s] = value
        end # end YAML.load_file
      end # end if File.exists?
    end # end config.before_configuration
  end # end class
end # end module


Now we can use this like as :-
 provider :twitter, ENV['TWITTER_KEY'], ENV['TWITTER_SECRET']
Experienced Ruby on Rails and Web Developer having 11+ years experience in Ruby & Ruby on Rails framework, TTD, Rspec. Expert on Git, SVN , Git Hook, Bitbucket. I use MySQL, MongoDB , PostgreSQL & Sqlite for Database Management. In front-end development I use HTML5 / HAML, CSS3 / SCSS, javascript / coffeescript. I also know about the deploy the applications on VPS Server i.e AWS EC2, Heroku, Ditital Ocean, Hostgator, Site5, BlueHost, AWS Load Balancing, Elastic Beanstalk, AWS S3 e.t.c ☆ Frameworks ☆ Ruby on Rails, Sinatra ☆ Database ☆ - PostgreSQL, MySQL, SQLite, - MongoDB, Amazon DynamoDB,AWS RDS. ☆ Front end Techniques ☆ - ReactJS, Angular js, Node js, Javascript, JQuery, HTML, CSS - Twitter Bootstrap, Coffeescript. Why hire me? * Master degree in Computer Science * 6 years professional experiences and 10+ projects completed * Available all day long, 7 days/24 hours * Good communication skills with fluent English * Self-motivated, fast-learner and "I can do" mind * Quality insurance and fast delivery

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