From: Brian Candler <b.candler@...>
Date: 2009-03-30T21:24:56+09:00
Subject: Re: Help with GServer

I単aki Baz Castillo wrote:
> But you should use something as Mongrel which allows this kind of stuf
> very easy and ellegant.

For a low-level HTTP app, I'd say use Rack. You just write a single 
handler function; each incoming request calls that function, and the 
response is what your function returns.

http://rack.rubyforge.org/
http://rack.rubyforge.org/doc/files/SPEC.html

It includes a bunch of modules you can plug in, like Rack::File which 
does exactly the sort of static file serving you're talking about. And 
the nice thing is you can run your application under any webserver you 
like without any modification.

For a higher-level HTTP app, I'd say use Sinatra. Your app becomes as 
simple as this (minus security checks):

  require 'sinatra'
  get '/:id.xml'
    send_file "/path/to/#{id}.xml"
  end

Sinatra runs on Rack, and you can plugin Rack modules easily.
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