Authentication helpers

apihelpers.rb

helpers do
    def authenticate!
      error!('Unauthorized. Invalid or expired token.', 401) unless current_user
    end

    def current_user
      # find token. Check if valid.
      user_token = params[:token]
      token = ApiKey.where(:access_token => user_token).first
      if token && !token.expired?
        @current_user = User.find(token.user_id)
      else
        false
      end
    end
end