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Dancer::Session::YAML - YAML-file-based session backend for Dancer


version 1.3521


This module implements a session engine based on YAML files. Session are stored in a session_dir as YAML files. The idea behind this module was to provide a transparent session storage for the developer.

This backend is intended to be used in development environments, when looking inside a session can be useful.

It's not recommended to use this session engine in production environments.


The setting session should be set to YAML in order to use this session engine in a Dancer application.

Files will be stored to the value of the setting session_dir, whose default value is appdir/sessions.

Here is an example configuration that use this session engine and stores session files in /tmp/dancer-sessions

    session: "YAML"
    session_dir: "/tmp/dancer-sessions"



To avoid checking if the sessions directory exists every time a new session is created, this module maintains a cache of session directories it has already created. reset wipes this cache out, forcing a test for existence of the sessions directory next time a session is created. It takes no argument.

This is particularly useful if you want to remove the sessions directory on the system where your app is running, but you want this session engine to continue to work without having to restart your application.


This module depends on YAML.


This module has been written by Alexis Sukrieh, see the AUTHORS file for details.


See Dancer::Session for details about session usage in route handlers.


This module is copyright (c) 2009 Alexis Sukrieh <>


This module is free software and is released under the same terms as Perl itself.


Dancer Core Developers


This software is copyright (c) 2010 by Alexis Sukrieh.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.