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Plack::Middleware::LinUser Contributed Perl DocumentPlack::Middleware::Lint(3)

NAME
       Plack::Middleware::Lint - Validate request and response

SYNOPSIS
	 use Plack::Middleware::Lint;

	 my $app = sub { ... };	# your app or middleware
	 $app =	Plack::Middleware::Lint->wrap($app);

	 # Or from plackup
	 plackup -e 'enable "Lint"' myapp.psgi

DESCRIPTION
       Plack::Middleware::Lint is a middleware component to validate request
       and response environment	formats. You are strongly suggested to use
       this middleware when you	develop	a new framework	adapter	or a new PSGI
       web server that implements the PSGI interface.

       This middleware is enabled by default when you run plackup or other
       launcher	tools with the default environment development value.

DEBUGGING
       Because of how this middleware works, it	may not	be easy	to debug Lint
       errors when you encounter one, unless you're writing a PSGI web server
       or a framework.

       For example, when you're	an application developer (user of some
       framework) and see errors like:

	 Body should be	an array ref or	filehandle at lib/Plack/Middleware/Lint.pm line	XXXX

       there's no clue about which line	of your	application produces that
       error.

       We're aware of the issue, and have a plan to spit out more helpful
       errors to diagnose the issue. But until then, currently there are some
       workarounds to make this	easier.	For now, the easiest one would be to
       enable Plack::Middleware::REPL outside of the Lint middleware, like:

	 plackup -e 'enable "REPL"; enable "Lint"' app.psgi

       so that the Lint	errors are caught by the REPL shell, where you can
       inspect all the variables in the	response.

AUTHOR
       Tatsuhiko Miyagawa

       Tokuhiro	Matsuno

SEE ALSO
       Plack

perl v5.24.1			  2015-12-06	    Plack::Middleware::Lint(3)

NAME | SYNOPSIS | DESCRIPTION | DEBUGGING | AUTHOR | SEE ALSO

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