NAME

Plack::Middleware::Scope::Container - per-request container

SYNOPSIS

use Plack::Builder;

builder {
    enable "Plack::Middleware::Scope::Container";
    $app
};

# in your application
package MyApp;

use Scope::Container;

sub getdb {
    if ( my $dbh = scope_container('db') ) {
        return $dbh;
    } else {
        my $dbh = DBI->connect(...);
        scope_container('db', $dbh)
        return $dbh;
    }
}

sub app {
  my $env = shift;
  getdb(); # do connect
  getdb(); # from container
  getdb(); # from container
  return [ '200', [] ["OK"]];
  # disconnect from db at end of request
}

DESCRIPTION

Plack::Middleware::Scope::Container and Scope::Container work like mod_perl's pnotes. It gives a per-request container to your application.

AUTHOR

Masahiro Nagano <kazeburo {at} gmail.com>

SEE ALSO

Scope::Container, Plack::Middleware::Scope::Session

LICENSE

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.