NAME
CGI::Application::Emulate::PSGI - a legacy-code-friendly PSGI adapter for CGI::Application
SYNOPSIS
Create a PSGI application from a CGI::Application project:
# if using CGI::Application
my $psgi_app = CGI::Application::Emulate::PSGI->handler(sub {
my $webapp = WebApp->new();
$webapp->run();
});
# if using CGI::Application::Dispatch
my $psgi_app = CGI::Application::Emulate::PSGI->handler(sub {
WebApp::Dispatch->dispatch();
});See plackup for options for running a PSGI application.
DESCRIPTION
CGI::Application::Emulate::PSGI allows a project based on CGI::Application to run as a PSGI application. Differences from CGI::Application::PSGI are:
- uses CGI.pm directly instead of CGI::PSGI
-
CGI::Application::PSGI (that uses CGI::PSGI) does not support programs calling CGI.pm in func-style (like CGI::virtual_host()). CGI::Application::Emulate::PSGI sets up environment variables so that code using CGI.pm will work. Both approaches explictly use CGI.pm as the query object.
- compatible with CGI::Application::Dispatch
-
The interface of CGI::Application::Emulate::PSGI is different from CGI::Application::PSGI, and is compatible with CGI::Application::Dispatch.
- headers are parsed and re-generated.
-
This difference is in favor of CGI::Application::PSGI, which more directly generates the HTTP headers in PSGI format. This module requires additional processing: First CGI::Application builds the full response including the headers and body, then we parse the final result back into the header and body format called for by the PSGI spec.
AUTHOR
Kazuho Oku <kazuhooku@gmail.com>
LICENSE
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.