What is a very simple authentication scheme for Sinatra/Rack

Question

I am busy porting a very small web app from ASP.NET MVC 2 to Ruby/Sinatra.

In the MVC app, FormsAuthentication.SetAuthCookie was being used to set a persistent cookie wh

Answer 1

Todd's answer does not work for me, and I found an even simpler solution for one-off dead simple authentication in Sinatra's FAQ:

require 'rubygems'
require 'sinatra'

use Rack::Auth::Basic, "Restricted Area" do |username, password|
    [username, password] == ['admin', 'admin']  
end

get '/' do
    "You're welcome"
end

I thought I would share it just in case anyone wandered this question and needed a non-persistent solution.