NAME Dancer::Plugin::Chain - Chained actions for Dancer VERSION version 0.1.0 SYNOPSIS use Dancer; use Dancer::Plugin::Chain; my $country = chain '/country/:country' => sub { # silly example. Typically much more work would # go on in here var 'site' => param('country'); }; my $event = chain '/event/:event' => sub { var 'event' => param('event'); }; # will match /country/usa/event/yapc get chain $country, $event, '/schedule' => sub { return sprintf "schedule of %s in %s\n", map { var $_ } qw/ event site /; }; my $continent = chain '/continent/:continent' => sub { var 'site' => param('continent'); }; my $continent_event = chain $continent, $event; # will match /continent/europe/event/yapc get chain $continent_event, '/schedule' => sub { return sprintf "schedule of %s in %s\n", map { var $_ } qw/ event site /; }; # will match /continent/asia/country/japan/event/yapc # and will do special munging in-between! get chain $continent, sub { var temp => var 'site' }, $country, sub { var 'site' => join ', ', map { var $_ } qw/ site temp / }, $event, '/schedule' => sub { return sprintf "schedule of %s in %s\n", map { var $_ } qw/ event site /; }; DESCRIPTION Implementation of Catalyst-like chained routes. The plugin exports a single keyword, "chain", which creates the chained routes. KNOWN CAVEATS The plugin does not support "prefix" yet, and only support string-based urls (so no regexes). EXPORTED FUNCTIONS chain @chain_items, $coderef Create a chain out of the items provided, and assign it the final action coderef. Each chain item can be a string representing a path segment, a previously defined chain or an anonymous function. The chain's final path and action will be the aggregate of its parts. For example, the final route declaration of the SYNOPSIS, get chain $continent, sub { var temp => var 'site' }, $country, sub { var 'site' => join ', ', map { var $_ } qw/ site temp / }, $event, '/schedule' => sub { return sprintf "schedule of %s in %s\n", map { var $_ } qw/ event site /; }; would be is equivalent to get '/continent/:continent/country/:country/event/:event/schedule' => sub { var 'site' => param('continent'); var temp => var 'site'; var 'site' => param('country'); var 'site' => join ', ', map { var $_ } qw/ site temp / var 'event' => param('event'); return sprintf "schedule of %s in %s\n", map { var $_ } qw/ event site /; } In scalar context, "chain" returns its underlying object. In list context, it returns a route / action pair of values (). That's how it can work transparently with "get", "post" and friends. # returns the object, that can be used to forge longer chains. my $foo_chain = chain '/foo', sub { ... }; # returns the pair that makes 'get' happy get chain $foo_chain; SEE ALSO * Original blog entry: * Dancer-Plugin-Dispatcher AUTHOR Yanick Champoux COPYRIGHT AND LICENSE This software is copyright (c) 2014 by Yanick Champoux. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.