NAME

       Plack::Middleware::Session - Middleware for session management

SYNOPSIS

         use Plack::Builder;

         my $app = sub {
             my $env = shift;
             my $session = $env->{'psgix.session'};
             return [
                 200,
                 [ 'Content-Type' => 'text/plain' ],
                 [ "Hello, you've been here for ", $session->{counter}++, "th time!" ],
             ];
         };

         builder {
             enable 'Session';
             $app;
         };

         # Or, use the File store backend (great if you use multiprocess server)
         # For more options, see perldoc Plack::Session::Store::File
         builder {
             enable 'Session', store => 'File';
             $app;
         };

DESCRIPTION

       This is a Plack Middleware component for session management. By default it will use
       cookies to keep session state and store data in memory. This distribution also comes with
       other state and store solutions. See perldoc for these backends how to use them.

       It should be noted that we store the current session as a hash reference in the
       "psgix.session" key inside the $env where you can access it as needed.

       NOTE: As of version 0.04 the session is stored in "psgix.session" instead of
       "plack.session".

   State
       Plack::Session::State
           This will maintain session state by passing the session through the request params. It
           does not do this automatically though, you are responsible for passing the session
           param.

       Plack::Session::State::Cookie
           This will maintain session state using browser cookies.

   Store
       Plack::Session::Store
           This is your basic in-memory session data store. It is volatile storage and not
           recommended for multiprocessing environments. However it is very useful for
           development and testing.

       Plack::Session::Store::File
           This will persist session data in a file. By default it uses Storable but it can be
           configured to have a custom serializer and deserializer.

       Plack::Session::Store::Cache
           This will persist session data using the Cache interface.

       Plack::Session::Store::Null
           Sometimes you don't care about storing session data, in that case you can use this
           noop module.

OPTIONS

       The following are options that can be passed to this module.

       state
           This is expected to be an instance of Plack::Session::State or an object that
           implements the same interface. If no option is provided the default
           Plack::Session::State::Cookie will be used.

       store
           This is expected to be an instance of Plack::Session::Store or an object that
           implements the same interface. If no option is provided the default
           Plack::Session::Store will be used.

           It should be noted that this default is an in-memory volatile store is only suitable
           for development (or single process servers). For a more robust solution see
           Plack::Session::Store::File or Plack::Session::Store::Cache.

BUGS

       All complex software has bugs lurking in it, and this module is no exception. If you find
       a bug please either email me, or add the bug to cpan-RT.

AUTHOR

       Tatsuhiko Miyagawa

       Stevan Little <stevan.little@iinteractive.com>

COPYRIGHT AND LICENSE

       Copyright 2009, 2010 Infinity Interactive, Inc.

       <http://www.iinteractive.com>

       This library is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.