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Plack::App::Cascade

NAME

Plack::App::Cascade − Cascadable compound application

SYNOPSIS

  use Plack::App::Cascade;
  use Plack::App::URLMap;
  use Plack::App::File;
  # Serve static files from multiple search paths
  my $cascade = Plack::App::Cascade−>new;
  $cascade−>add( Plack::App::File−>new(root => "/www/example.com/foo")−>to_app );
  $cascade−>add( Plack::App::File−>new(root => "/www/example.com/bar")−>to_app );
  my $app = Plack::App::URLMap−>new;
  $app−>map("/static", $cascade);
  $app−>to_app;

DESCRIPTION

Plack::App::Cascade is a Plack middleware component that compounds several apps and tries them to return the first response that is not 404.

METHODS

new

  $app = Plack::App::Cascade−>new(apps => [ $app1, $app2 ]);

Creates a new Cascade application.

add

  $app−>add($app1);

$app−>add($app2, $app3);

Appends a new application to the list of apps to try. You can pass the multiple apps to the one "add" call.

catch

  $app−>catch([ 403, 404 ]);

Sets which error codes to catch and process onwards. Defaults to 404.

AUTHOR

Tatsuhiko Miyagawa

SEE ALSO

Plack::App::URLMap Rack::Cascade

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