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Plack::Handler.3pm

NAME

Plack::Handler - Connects PSGI applications and Web servers

SYNOPSIS

   package Plack::Handler::AwesomeWebServer;
   sub new {
       my($class, %opt) = @_;
       ...
       return $self;
   }
 
   sub run {
       my($self, $app) = @_;
       # launch the AwesomeWebServer and run $app in the loop
   }
 
   # then from command line
   plackup -s AwesomeWebServer -a app.psgi
 
 

DESCRIPTION

Plack::Handler defines an adapter (connector) interface to adapt plackup and Plack::Runner to various PSGI web servers, such as Apache2 for mod_perl and Standalone for HTTP::Server::PSGI.

It is an empty class, and as long as they implement the methods defined as an Server adapter interface, they do not need to inherit Plack::Handler.

If you write a new handler for existing web servers, I recommend you to include the full name of the server module after Plack::Handler prefix, like Plack::Handler::Net::Server::Coro if you write a handler for Net::Server::Coro. That way you'll be using plackup command line option like:

   plackup -s Net::Server::Coro
 
 

that makes it easy to figure out which web server you're going to use.

METHODS

new

   $server = FooBarServer->new(%args);
 
 

Creates a new adapter object. %args can take arbitrary parameters to configure server environments but common parameters are:

port

Port number the server listens to.

host

Address the server listens to. Set to undef to listen any interface.

run

   $server->run($app);
 
 

Starts the server process and when a request comes in, run the PSGI application passed in $app in the loop.

register_service

   $server->register_service($app);
 
 

Optional interface if your server should run in parallel with other event loop, particularly AnyEvent. This is the same as "run" but doesn't run the main loop.

SEE ALSO

rackup