This document specifies a standard interface between web servers and Perl web applications or frameworks, to promote web application portability and reduce the duplicated efforts by web application framework developers. Keep in mind that PSGI is not Yet Another web application framework. PSGI is a specification to decouple web server environments from web application framework code. PSGI is also not the web application API. Web application developers (end users) are not supposed to run their web applications directly using the PSGI interface, but instead are encouraged to use frameworks that support PSGI, or use the helper implementations like Plack (more on that later).
WWW: http://search.cpan.org/dist/PSGI/
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