use Net::LastFM::Submission;

    my $submit = Net::LastFM::Submission->new(
        user      => 'net_lastfm',
        password  => '12',
    );

    $submit->handshake;

    $submit->submit(
        artist => 'Artist name',
        title  => 'Track title',
        time   => time - 10*60, # 10 minutes ago
    );

    $submit->now_playing(
        artist => 'Artist name',
        title  => 'Track title',
    );

The module provides a simple Perl interface to the Last.fm Submissions Protocol (current version is 1.2.1).

The Last.fm Submissions Protocol is designed for the submission of now-playing and recent historical track data to Last.fm user profiles (aka 'Scrobbling').

http://www.lastfm.ru/api/submissions

This is a constructor for Net::LastFM::Submission object. It takes list of parameters or hashref parameter.

    # list
    my $submit = Net::LastFM::Submission->new(
        user     => 'net_lastfm',
        password => '12',
    );

    # hashref
    my $submit = Net::LastFM::Submission->new({
        user     => 'net_lastfm',
        password => '12',
    });

This is a list of support parameters:

* user

The name of the Last.FM user. Required.

* password

The password of the Last.FM user. Required for Standard authentication only. It is used for generate authentication token. See http://www.lastfm.ru/api/submissions#1.2.

* api_key

The API key from your Web Services account. Required for Web Services authentication only.

* api_secret

The API secret from your Web Services account. Required for Web Services authentication only. It is used for generate authentication token. See http://www.lastfm.ru/api/submissions#1.3.

* secret_key

The Web Services session key generated via the authentication protocol. Required for Web Services authentication only.

* client_id

The identifier for the client. Optional. Default value is tst. See http://www.lastfm.ru/api/submissions#1.1.

* client_ver

The version of the client being used. Optional. Default value is 1.0.

* ua

The user agent of the client. Optional. Default value is LWP::UserAgent object with timeout 10 seconds.

* enc

The encoding of the data, the module tries to encode the data (artist/title/album) unless the data is UTF-8. See function encode_data. Optional. Default value is cp1251.

The initial negotiation with the submissions server to establish authentication and connection details for the session. See http://www.lastfm.ru/api/submissions#handshake.

    $submit->handshake;

If the handshake is successful, the returned hashref should be the following format:

    {
        'status' => 'OK',
        'sid'    => 'Session ID', # the scrobble session id
        'url'    => {
            'np'  => 'Now-Playing URL',
            'sm'  => 'Submission URL'
        }
    }

Else:

    {
        'error'  => 'BANNED/BADAUTH/BADTIME/FAILED',
        'code'   => '200/500', # code of status line response
        'reason' => '...'      # reason of error
    }

Optional lightweight notification of now-playing data at the start of the track for realtime information purposes. See http://www.lastfm.ru/api/submissions#np.

It takes list of parameters or hashref parameter.

    # list
    $submit->now_playing(
        artist => 'Artist name',
        title  => 'Track title',
    );

    # hashref
    $submit->now_playing({
        artist => 'Artist name',
        title  => 'Track title',
    });

This is a list of support parameters:

* artist

The artist name. Required.

* title

The track name. Required.

* album

The album title, or an empty string if not known.

* length

The length of the track in seconds, or an empty string if not known.

* id

The position of the track on the album, or an empty string if not known.

* mb_id

The MusicBrainz Track ID, or an empty string if not known.

* enc

The encoding of the data, the module tries to encode the data (artist/title/album) unless the data is UTF-8. See function encode_data. Optional.

If the notification is successful, the returned hashref should be the following format:

    {
        'status' => 'OK',
    }

Else:

    {
        'error'  => 'ERROR/BADSESSION',
        'code'   => '200/500', # code of status line response
        'reason' => '...'      # reason of error
    }

Submission of full track data at the end of the track for statistical purposes. See http://www.lastfm.ru/api/submissions#subs.

It takes list of parameters (information about one track) or list of hashref parameters (limit of Last.FM is 50).

    # list
    $submit->submit(
        artist => 'Artist name',
        title  => 'Track title',
    );

    # hashref
    $submit->submit(
        grep { $_->{'source'} = 'R' }
        {
            artist => 'Artist name 1',
            title  => 'Track title 1',
            time   => time - 10*60,
        },
        {
            artist => 'Artist name 2',
            title  => 'Track title 2',
        }
    );

This is a list of support parameters:

* artist

The artist name. Required.

* title

The track name. Required.

* time

The time the track started playing, in UNIX timestamp format. Optional. Default value is current time.

* source

The source of the track. Optional. Default value is R.

* rating

A single character denoting the rating of the track. Empty if not applicable.

* length

The length of the track in seconds. Required when the source is P, optional otherwise.

* album

The album title, or an empty string if not known.

* id

The position of the track on the album, or an empty string if not known.

* mb_id

The MusicBrainz Track ID, or an empty string if not known.

* enc

The encoding of the data, the module tries to encode the data (artist/title/album) unless the data is UTF-8. Optional.

If the submit is successful, the returned hashref should be the following format:

    {
        'status' => 'OK',
    }

Else:

    {
        'error'  => 'ERROR/BADSESSION/FAILED',
        'code'   => '200/500', # code of status line response
        'reason' => '...'      # reason of error
    }

Function tries encode $data from $enc to UTF-8 and remove BOM-symbol. See Encode.

    use Net::LastFM::Submission 'encode_data';

    encode_data('foo bar in cp1251', 'cp1251');

Encoding of all data for Last.fm must be UTF-8.

Module can generate a requests for handshake, now playing and submit operations. These methods return HTTP::Request instance. One request has support parameters same as method.

* _request_handshake()

Generate GET request for handshake. See handshake() method.

* _request_now_playing(%args)

Generate POST request for now playing. See now_playing(%args) method.

* _request_submit(%args)

Generate POST request for submit. See submit(%args) method.

Also module can parse a response (HTTP::Response instance) of these requests.

_response($response)

	my $request  = $self->_request_handshake; # generate request for handshake, return HTTP::Request instance
	...
	my $response = send_request($request); # send this request, return HTTP::Response instance
	...
	$self->_response($response); # parse this request

This feature can use for async model (even-driven) such as POE, IO::Lambda or AnyEvent.

See POE::Component::Net::Submission::LastFM.

The module supports debug mode.

    BEGIN { $ENV{SUBMISSION_DEBUG}++ };
    use Net::LastFM::Submission;

See examples/* in this distributive.

* Net::LastFM

A simple interface to the Last.fm API. Moose-like interface. Very simple and powerful.

* Audio::Scrobbler

Perl interface to audioscrobbler.com/last.fm. Old interface for submit.

* Music::Audioscrobbler::Submit

Module providing routines to submit songs to last.fm using 1.2 protocol. Use path to a track or Music::Tag or hashref. Very big :).

LWP::UserAgent HTTP::Request::Common Encode Digest::MD5 Carp Exporter

Anatoly Sharifulin, <sharifulin at gmail.com>

Please report any bugs or feature requests to bug-net-lastfm-submission at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Net-LastFM-Submission. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

You can find documentation for this module with the perldoc command.

    perldoc Net::LastFM::Submission

You can also look for information at:

* Github

http://github.com/sharifulin/net-lastfm-submission/tree/master

* RT: CPAN's request tracker

http://rt.cpan.org/NoAuth/Bugs.html?Dist=Net-LastFM-Submission

* AnnoCPAN: Annotated CPAN documentation

http://annocpan.org/dist/Net-LastFM-Submission

* CPANTS: CPAN Testing Service

http://cpants.perl.org/dist/overview/Net-LastFM-Submission

* CPAN Ratings

http://cpanratings.perl.org/d/Net-LastFM-Submission

* Search CPAN

http://search.cpan.org/dist/Net-LastFM-Submission

Copyright (C) 2009 Anatoly Sharifulin

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