connection.rb

class Connection
  def self.internal_api(*args)
    self.faraday(*args) do |f|
      f.headers['Content-Type']        = 'application/json'
      f.headers['InternalAPIPassword'] = ENV['INTERNAL_API_PASSWORD']
      f.headers['UserRole']            = ENV['USER_ROLE']
      f.headers['UserCode']            = ENV['USER_CODE']
    end
  end

  def self.faraday(*args)
    Faraday.new(*args) do |f|
      yield(f) if block_given?
    end
  end
end