NAME

MetaCPAN::Client - A comprehensive, DWIM-featured client to the MetaCPAN API

VERSION

version 1.022000

SYNOPSIS

# simple usage
my $mcpan  = MetaCPAN::Client->new();
my $author = $mcpan->author('XSAWYERX');
my $dist   = $mcpan->distribution('MetaCPAN-Client');

# advanced usage with cache (contributed by Kent Fredric)
use CHI;
use WWW::Mechanize::Cached;
use HTTP::Tiny::Mech;
use MetaCPAN::Client;

my $mcpan = MetaCPAN::Client->new(
  version => 'v1',

  ua => HTTP::Tiny::Mech->new(
    mechua => WWW::Mechanize::Cached->new(
      cache => CHI->new(
        driver   => 'File',
        root_dir => '/tmp/metacpan-cache',
      ),
    ),
  ),
);

# now $mcpan caches results

DESCRIPTION

This is a hopefully-complete API-compliant client to MetaCPAN (https://metacpan.org) with DWIM capabilities, to make your life easier.

ATTRIBUTES

request

Internal attribute representing the request object making the request to MetaCPAN and analyzing the results. You probably don't want to set this, nor should you have any usage of it.

ua

If provided, MetaCPAN::Client::Request will use the user agent object instead of the default, which is HTTP::Tiny.

Then it can be used to fetch the user agent object used by MetaCPAN::Client::Request.

version

API version (supported: 'v0', 'v1')

This will also set default value to your 'domain' (unless given)

domain

If given, will be used to alter the API domain.

METHODS

author

my $author = $mcpan->author('XSAWYERX');
my $author = $mcpan->author($search_spec);

Finds an author by either its PAUSE ID or by a search spec defined by a hash reference. Since it is common to many other searches, it is explained below under SEARCH SPEC.

Return a MetaCPAN::Client::Author object on a simple search (PAUSE ID), or a MetaCPAN::Client::ResultSet object propagated with MetaCPAN::Client::Author objects on a complex (search spec based) search.

module

my $module = $mcpan->module('MetaCPAN::Client');
my $module = $mcpan->module($search_spec);

Finds a module by either its module name or by a search spec defined by a hash reference. Since it is common to many other searches, it is explained below under SEARCH SPEC.

Return a MetaCPAN::Client::Module object on a simple search (module name), or a MetaCPAN::Client::ResultSet object propagated with MetaCPAN::Client::Module objects on a complex (search spec based) search.

distribution

my $dist = $mcpan->distribution('MetaCPAN-Client');
my $dist = $mcpan->distribution($search_spec);

Finds a distribution by either its distribution name or by a search spec defined by a hash reference. Since it is common to many other searches, it is explained below under SEARCH SPEC.

Return a MetaCPAN::Client::Distribution object on a simple search (distribution name), or a MetaCPAN::Client::ResultSet object propagated with MetaCPAN::Client::Distribution objects on a complex (search spec based) search.

file

Return a MetaCPAN::Client::File object.

favorite

my $favorite = $mcpan->favorite({ distribution => 'Moose' });

Return a MetaCPAN::Client::Favorite object.

rating

my $rating = $mcpan->rating({ distribution => 'Moose' });

Return a MetaCPAN::Client::Rating object.

release

my $release = $mcpan->release('MetaCPAN-Client');
my $release = $mcpan->release($search_spec);

Finds a release by either its distribution name or by a search spec defined by a hash reference. Since it is common to many other searches, it is explained below under SEARCH SPEC.

Return a MetaCPAN::Client::Release object on a simple search (release name), or a MetaCPAN::Client::ResultSet object propagated with MetaCPAN::Client::Release objects on a complex (search spec based) search.

mirror

my $mirror = $mcpan->mirror('kr.freebsd.org');

Returns a MetaCPAN::Client::Mirror object.

reverse_dependencies

my $deps = $mcpan->reverse_dependencies('ElasticSearch');

all MetaCPAN::Client::Release objects of releases that are dependent on a given module, returned as MetaCPAN::Client::ResultSet.

rev_deps

Alias to reverse_dependencies described above.

recent

my $recent = $mcpan->recent(10);
my $recent = $mcpan->recent('today');

return the latest N releases, or all releases from today.

returns a MetaCPAN::Client::ResultSet of MetaCPAN::Client::Release.

pod

Get POD for given file/module name. returns a MetaCPAN::Client::Pod object, which supports various output formats (html, plain, x_pod & x_markdown).

my $pod = $mcpan->pod('Moo')->html;
my $pod = $mcpan->pod('Moo', { url_prefix => $prefix })->html;

all

Retrieve all matches for authors/modules/distributions/favorites or releases.

my $all_releases = $mcpan->all('releases')

When called with a second parameter containing a hash ref, will support the following keys:

download_url

Retrieve information from the 'download_url' endpoint (v1 only)

my $download_url = $mcpan->download_url('Moose')

Returns a MetaCPAN::Client::DownloadURL object

fields

See SEARCH PARAMS.

my $all_releases = $mcpan->all('releases', { fields => [...] })

es_filter

Pass a raw ElasticSearch filter structure to reduce the number of elements returned by the query.

my $some_releases = $mcpan->all('releases', { es_filter => {...} })

BUILDARGS

Internal construction wrapper. Do not use.

SEARCH PARAMS

Most searches take params as an optional hash-ref argument. these params will be passed to the search action.

In non-scrolled searches, 'fields' filter is the only supported parameter ATM.

fields

Filter the fields to reduce the amount of data pulled from MetaCPAN. can be passed as a csv list or an array ref.

my $module = $mcpan->module('Moose', { fields => "version,author" });
my $module = $mcpan->module('Moose', { fields => [qw/version author/] });

SEARCH SPEC

The hash-based search spec is common to many searches. It is quite feature-rich and allows to disambiguate different types of searches.

Basic search specs just contain a hash of keys and values:

my $author = $mcpan->author( { name => 'Micha Nasriachi' } );

# the following is the same as ->author('MICKEY')
my $author = $mcpan->author( { pauseid => 'MICKEY' } );

# find all people named Dave, not covering Davids
# will return a resultset
my $daves = $mcpan->author( { name => 'Dave *' } );

OR

If you want to do a more complicated query that has an OR condition, such as "this or that", you can use the following syntax with the either key:

# any author named "Dave" or "David"
my $daves = $mcpan->author( {
    either => [
        { name => 'Dave *'  },
        { name => 'David *' },
    ]
} );

AND

If you want to do a more complicated query that has an AND condition, such as "this and that", you can use the following syntax with the all key:

# any users named 'John' with a Gmail account
my $johns = $mcpan->author( {
    all => [
        { name  => 'John *'     },
        { email => '*gmail.com' },
    ]
} );

If you want to do something even more complicated, You can also nest your queries, e.g.:

my $gmail_daves_or_cpan_sams = $mcpan->author( {
    either => [
        { all => [ { name => 'Dave *'  },
                   { email => '*gmail.com' } ]
        },
        { all => [ { name => 'Sam *' },
                   { email => '*cpan.org' } ]
        },
    ],
} );

NOT

If you want to filter out some of the results of an either/all query adding a NOT filter condition, such as "not these", you can use the following syntax with the not key:

# any author named "Dave" or "David"
my $daves = $mcpan->author( {
    either => [
        { name => 'Dave *'  },
        { name => 'David *' },
    ],
    not => [
        { email => '*gmail.com' },
    ],
} );

DESIGN

This module has three purposes:

Provide 100% of the MetaCPAN API

This module will be updated regularly on every MetaCPAN API change, and intends to provide the user with as much of the API as possible, no shortcuts. If it's documented in the API, you should be able to do it.

Because of this design decision, this module has an official MetaCPAN namespace with the blessing of the MetaCPAN developers.

Notice this module currently only provides the beta API, not the old soon-to-be-deprecated API.
Be lightweight, to allow flexible usage

While many modules would help make writing easier, it's important to take into account how they affect your compile-time, run-time, overall memory consumption, and CPU usage.

By providing a slim interface implementation, more users are able to use this module, such as long-running processes (like daemons), CLI or GUI applications, cron jobs, and more.
DWIM

While it's possible to access the methods defined by the API spec, there's still a matter of what you're really trying to achieve. For example, when searching for "Dave", you want to find both Dave Cross and Dave Rolsky (and any other Dave), but you also want to search for a PAUSE ID of DAVE, if one exists.

This is where DWIM comes in. This module provides you with additional generic methods which will try to do what they think you want.

Of course, this does not prevent you from manually using the API methods. You still have full control over that, if that's what you wish.

You can (and should) read up on the general methods, which will explain how their DWIMish nature works, and what searches they run.

AUTHORS

Sawyer X <xsawyerx@cpan.org>
Mickey Nasriachi <mickey@cpan.org>

COPYRIGHT AND LICENSE

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

To install MetaCPAN::Client, copy and paste the appropriate command in to your terminal.

cpanm

cpanm MetaCPAN::Client

CPAN shell

perl -MCPAN -e shell
install MetaCPAN::Client

For more information on module installation, please visit the detailed CPAN module installation guide.

	Global
`s`	Focus search bar
`?`	Bring up this help dialog

	GitHub
`g` `p`	Go to pull requests
`g` `i`	go to github issues (only if github is preferred repository)

	POD
`g` `a`	Go to author
`g` `c`	Go to changes
`g` `i`	Go to issues
`g` `d`	Go to dist
`g` `r`	Go to repository/SCM
`g` `s`	Go to source
`g` `b`	Go to file browse

	Search terms
module: (e.g. module:Plugin)
distribution: (e.g. distribution:Dancer auth)
author: (e.g. author:SONGMU Redis)
version: (e.g. version:1.00)

NAME

VERSION

SYNOPSIS

DESCRIPTION

ATTRIBUTES

request

ua

version

domain

METHODS

author

module

distribution

file

favorite

rating

release

mirror

reverse_dependencies

rev_deps

recent

pod

all

download_url

fields

es_filter

BUILDARGS

SEARCH PARAMS

fields

SEARCH SPEC

OR

AND

NOT

DESIGN

AUTHORS

COPYRIGHT AND LICENSE

Module Install Instructions