get_menu.rb

def get_menu(directory)
    pages = Dir.glob(Rails.root.join("app/views/docs/api/#{directory}/*.md"))
    
    pages.map do |page|
      heading = ''
      pages = []
      
      File.open(page, "rb").each do |line|
        matches = /^\s?# (.+)/.match(line)        
        heading = matches[1] if matches
        
        matches = /^\s?## (.+)/.match(line)        
        pages << matches[1] if matches
      end
      
      {
        path: File.basename(page, ".md"), 
        heading: heading,
        pages: pages
      }
    end
  end