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NAME
Plack::Middleware::ETag - Adds automatically an ETag header.
SYNOPSIS
use Plack::Builder;
my $app = builder {
enable "Plack::Middleware::ETag", file_etag => [qw/inode mtime size/];
sub {['200', ['Content-Type' => 'text/html'}, ['hello world']]};
};
DESCRIPTION
Plack::Middleware::ETag adds automatically an ETag header. You may want
to use it with "Plack::Middleware::ConditionalGET".
my $app = builder {
enable "Plack::Middleware::ConditionalGET";
enable "Plack::Middleware::ETag", file_etag => "inode";
sub {['200', ['Content-Type' => 'text/html'}, ['hello world']]};
};
CONFIGURATION
file_etag
If the content is a file handle, the ETag will be set using the
inode, modified time and the file size. You can select which
attributes of the file will be used to set the ETag:
enable "Plack::Middleware::ETag", file_etag => [qw/size/];
cache_control
It's possible to add 'Cache-Control' header.
enable "Plack::Middleware::ETag", cache_control => 1;
Will add "Cache-Control: must-revalidate" to the headers.
enable "Plack::Middleware::ETag", cache_control => [ 'must-revalidate', 'max-age=3600' ];
Will add "Cache-Control: must-revalidate, max-age=3600" to the
headers.
check_last_modified_header
Will not add an ETag if there is already a Last-Modified header.
AUTHOR
franck cuny <franck@lumberjaph.net>
SEE ALSO
LICENSE
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
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