```{index} single: CPAN::Meta::Validator ``` # CPAN::Meta::Validator validate CPAN distribution metadata structures ## VERSION version 2.150013 ## SYNOPSIS ```perl my $struct = decode_json_file('META.json'); my $cmv = CPAN::Meta::Validator->new( $struct ); unless ( $cmv->is_valid ) { my $msg = "Invalid META structure. Errors found:\n"; $msg .= join( "\n", $cmv->errors ); die $msg; } ``` ## DESCRIPTION This module validates a CPAN Meta structure against the version of the the specification claimed in the `meta-spec` field of the structure. ## METHODS ### new ```perl my $cmv = CPAN::Meta::Validator->new( $struct ) ``` The constructor must be passed a metadata structure. ### is\_valid ```perl if ( $cmv->is_valid ) { ... } ``` Returns a boolean value indicating whether the metadata provided is valid. ### errors ```perl warn( join "\n", $cmv->errors ); ``` Returns a list of errors seen during validation. ## BUGS Please report any bugs or feature using the CPAN Request Tracker. Bugs can be submitted through the web interface at [http://rt.cpan.org/Dist/Display.html?Queue=CPAN-Meta](http://rt.cpan.org/Dist/Display.html?Queue=CPAN-Meta) When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature. ## AUTHORS - David Golden - Ricardo Signes - Adam Kennedy ## COPYRIGHT AND LICENSE This software is copyright (c) 2010 by David Golden, Ricardo Signes, Adam Kennedy and Contributors. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.