gistfile1.rb

require 'cuba'

Cuba.define do
  on "api/v1" do
    auth =  Rack::Auth::Basic::Request.new(req.env)    
    authorized = auth.provided? && auth.basic? && auth.credentials && auth.credentials == ['admin', 'admin']
    if !authorized
      res['WWW-Authenticate'] = %(Basic realm="Restricted Area")
      res.status = 401
    else
      on "bugs" do
        res.write "stuff"
      end
    end     
  end
end