NAME

WebService::Lastfm - interact with Last.fm's API

SYNOPSIS

my $lastfm = WebService::Lastfm.new(:api-key<1234>, :api-secret<music>);

# Read request
say $lastfm.request('user.getInfo', :user<avuserow>);

# Update now playing
say $lastfm.write('track.updateNowPlaying',
    :sk<SECRET KEY>,
    :artist("Alan Parsons Project"),
    :track<Time>,
    :duration<360>,
);

DESCRIPTION

Bindings for Last.fm's API using the JSON format (instead of their default XML). You must register for their API to get an API key and API secret.

METHODS

new($api-key, $api-secret)

Standard new method. All parameters are optional, but the API key is needed for all known requests, and the secret is needed for write methods.

request($method, *%params)

Make an unsigned GET request, used for read-only operations.

write($method, *%params)

Make a signed POST request, used for writing operations, the most famous of which is "scrobbling" (track.scrobble).

EXCEPTIONS

X::WebService::Lastfm is thrown on any error responses, with the decoded error message from Last.fm. Check the method's documentation (or the API documentation overall) for the meaning of the code.

CAVEATS

No packaged tests -- testing things that require API keys is nontrivial
The assumption about requests being either GET/unsigned or POST/signed may not be true, in which case more methods may be needed.
Undertested in general

TODO

Switch to HTTP::UserAgent, which needs work to implement this
Add tests somehow
Example scripts. Ideas include a history exporter and a CLI scrobbler
Optional caching mode
Some sort of pagination helper for some API calls

REQUIREMENTS

Rakudo Perl 6
LWP::Simple
JSON::Tiny
URI::Encode
Digest::MD5