Apache2::REST provides a simple and flexible micro-framework which allows developers to implement their application RESTful's API in Perl, using apache2 and mod_perl2/mod_apreq2.

Find the code and more documentation at CPAN

Here's a quick tutorial:

1. Install it

$ cpan -i Apache2::REST

2. Write your first API root handler

package MyApp::REST::API ;
use warnings ;
use strict ;

use base qw/Apache2::REST::Handler/ ;

# Implement the GET HTTP method.
sub GET{
 my ($self, $request, $response) = @_ ;
 $response->data()->{’api_mess’} = ’Hello, this is MyApp REST API’ ;
 return Apache2::Const::HTTP_OK ;
}
# Authorize the GET method.
sub isAuth{my ($self, $method, $req) = @_; return $method eq ’GET’;}
1 ;

3. Configure apache

# Make sure you
LoadModule apreq_module modules/mod_apreq2.so
LoadModule perl_module modules/mod_perl.so
# Load Apache2::REST
PerlModule Apache2::REST
# Let Apache2::REST handle the /
# and set the root handler of the API
<Location />
 SetHandler perl-script
 PerlSetVar Apache2RESTHandlerRootClass "MyApp::REST::API"
 PerlResponseHandler  Apache2::REST
</Location>

4. Access your brand new API

At http://yourhost/

Now read the CookBook and perldoc Apache2::REST to go further.