Plack::Middleware::ErrorDocument - Set Error Document based on HTTP status code
# in app.psgi use Plack::Builder; builder { enable "Plack::Middleware::ErrorDocument", 500 => '/uri/errors/500.html', 404 => '/uri/errors/404.html', subrequest => 1; $app; };
Plack::Middleware::ErrorDocument allows you to customize error screen by setting paths (file system path or URI path) of error pages per status code.
A boolean flag to serve error pages using a new GET sub request. Defaults to false, which means it serves error pages using file system path.
builder { enable "Plack::Middleware::ErrorDocument", 502 => '/home/www/htdocs/errors/maint.html'; enable "Plack::Middleware::ErrorDocument", 404 => '/static/404.html', 403 => '/static/403.html', subrequest => 1; $app; };
This configuration serves 502 error pages from file system directly assuming that's when you probably maintain database etc. but serves 404 and 403 pages using a sub request so your application can do some logic there like logging or doing suggestions.
When using a subrequest, the subrequest should return a regular '200' response.
Tatsuhiko Miyagawa
To install Plack, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Plack
CPAN shell
perl -MCPAN -e shell install Plack
For more information on module installation, please visit the detailed CPAN module installation guide.