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Adds automatically an ETag header
Perl Perl6
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README.md

Plack::Middleware::ETag - Adds automatically an ETag header.

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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 franckcuny@gmail.com

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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