⚡ Last.fm Client Bundle for Symfony – Complete Music Scrobbling & Data Access

🚀 SYMFONY INTEGRATION! Seamless autowiring for the complete Last.fm music API. Zero bloat, maximum performance.

Symfony bundle that integrates the modern calliostro/lastfm-client into your Symfony application. Built with modern PHP 8.1+ features, dependency injection, and powered by Guzzle.

📦 Installation

Install via Composer:

composer require calliostro/lastfm-bundle

⚙️ Configuration

Configure the bundle in config/packages/calliostro_lastfm.yaml:

calliostro_lastfm:
    # Required: API Key for all practical operations (get from https://www.last.fm/api/account/create)
    api_key: '%env(LASTFM_API_KEY)%'
    
    # Required for authenticated operations: API Secret  
    api_secret: '%env(LASTFM_SECRET)%'
    
    # Optional: Session key for scrobbling and user operations
    # Get this via Last.fm OAuth flow or use a pre-generated session key
    # session_key: '%env(LASTFM_SESSION_KEY)%'
    
    # Optional: HTTP User-Agent header for API requests
    # user_agent: 'MyApp/1.0 +https://myapp.com'
    
    # Optional: Professional rate limiting (requires symfony/rate-limiter)
    # rate_limiter: lastfm_api       # Your configured RateLimiterFactory service

API Key: You need to create an API account at Last.fm to get your API key. This is required for all operations.

API Secret: Required for authenticated write operations like scrobbling, loving tracks, or updating now playing status. Used together with API Key to generate signatures for authenticated requests.

Session Key: Required for user-specific authenticated operations like scrobbling tracks, loving tracks, updating now playing status, or accessing user's personal data. Obtain this through Last.fm's authentication flow or use a pre-generated session key.

User-Agent: By default, the client uses LastfmClient/2.0.0 (+https://github.com/calliostro/lastfm-client) as User-Agent. You can override this in the configuration if needed.

🚀 Quick Start

Basic Usage

<?php
// src/Controller/MusicController.php

namespace App\Controller;

use Calliostro\LastFm\LastFmClient;
use Symfony\Component\HttpFoundation\JsonResponse;

class MusicController
{
    public function artistInfo(string $artist, LastFmClient $client): JsonResponse
    {
        $artistInfo = $client->getArtistInfo(artist: $artist);
        $topTracks = $client->getArtistTopTracks(artist: $artist, limit: 5);

        return new JsonResponse([
            'artist' => $artistInfo['artist']['name'],
            'bio' => $artistInfo['artist']['bio']['summary'] ?? null,
            'topTracks' => $topTracks['toptracks']['track'],
        ]);
    }
}

Scrobbling and User Data

// Scrobbling requires API Key, API Secret AND Session Key
// All three are automatically injected from configuration
$client->scrobbleTrack(
    artist: 'The Weeknd',
    track: 'Blinding Lights',
    timestamp: time()
);

$client->loveTrack(artist: 'Olivia Rodrigo', track: 'good 4 u');

$recentTracks = $client->getUserRecentTracks(user: 'username', limit: 10);
$topArtists = $client->getUserTopArtists(user: 'username', period: '1month');

Music Discovery

$artistInfo = $client->getArtistInfo(artist: 'Billie Eilish');
$albumInfo = $client->getAlbumInfo(artist: 'Taylor Swift', album: 'Midnights');
$trackInfo = $client->getTrackInfo(artist: 'The Weeknd', track: 'Blinding Lights');

$similarArtists = $client->getArtistSimilar(artist: 'Olivia Rodrigo');
$topTracks = $client->getArtistTopTracks(artist: 'Dua Lipa', limit: 10);
$topAlbums = $client->getArtistTopAlbums(artist: 'Ariana Grande');

✨ Key Features

• Ultra-Lightweight – Minimal Symfony integration with zero bloat for the ultra-lightweight Last.fm client
• Complete API Coverage – All Last.fm API endpoints supported (Album, Artist, Auth, Chart, Geo, Library, Tag, Track, User)
• Direct API Calls – $client->getArtistInfo(artist: 'name') maps to /2.0/?method=artist.getinfo, no abstractions
• Type Safe + IDE Support – Full PHP 8.1+ types, PHPStan Level 8, method autocomplete
• Symfony Native – Seamless autowiring with Symfony 6.4, 7.x & 8.x
• Well Tested – Comprehensive test coverage, Symfony coding standards
• Flexible Auth – API Key for read operations, API Key + Secret + Session Key for user operations (scrobbling, etc.)

🎵 All Last.fm API Methods as Direct Calls

• Album Methods – getAlbumInfo(), addAlbumTags(), getAlbumTags(), getAlbumTopTags(), removeAlbumTag(), searchAlbums()
• Artist Methods – getArtistInfo(), getArtistCorrection(), getArtistSimilar(), getArtistTags(), getArtistTopAlbums(), getArtistTopTags(), getArtistTopTracks(), addArtistTags(), removeArtistTag(), searchArtists()
• Auth Methods – getMobileSession(), getSession(), getToken()
• Chart Methods – getTopArtists(), getTopTags(), getTopTracks()
• Geo Methods – getTopArtists(), getTopTracks()
• Library Methods – getArtists()
• Tag Methods – getInfo(), getSimilar(), getTopAlbums(), getTopArtists(), getTopTracks(), getWeeklyChartList()
• Track Methods – getTrackInfo(), getTrackCorrection(), getTrackSimilar(), getTrackTags(), getTrackTopTags(), addTrackTags(), loveTrack(), removeTrackTag(), scrobbleTrack(), unloveTrack(), updateNowPlaying(), searchTracks()
• User Methods – getUserInfo(), getUserFriends(), getUserLovedTracks(), getUserPersonalTags(), getUserRecentTracks(), getUserTopAlbums(), getUserTopArtists(), getUserTopTags(), getUserTopTracks(), getUserWeeklyAlbumChart(), getUserWeeklyArtistChart(), getUserWeeklyChartList(), getUserWeeklyTrackChart()

All Last.fm API endpoints are supported with clean documentation — see Last.fm API Documentation for complete method reference

📋 Requirements

• php ^8.1
• symfony ^6.4 | ^7.0 | ^8.0
• calliostro/lastfm-client ^2.0

🔧 Service Integration

<?php
// src/Service/MusicService.php

namespace App\Service;

use Calliostro\LastFm\LastFmClient;

class MusicService
{
    public function __construct(
        private readonly LastFmClient $client
    ) {
    }

    public function getArtistWithTopTracks(string $artist): array
    {
        $artistInfo = $this->client->getArtistInfo(artist: $artist);
        $topTracks = $this->client->getArtistTopTracks(
            artist: $artist,
            limit: 10
        );

        return [
            'artist' => $artistInfo,
            'topTracks' => $topTracks['toptracks']['track'],
        ];
    }

    public function scrobbleCurrentTrack(string $artist, string $track): void
    {
        // Requires API Key, API Secret AND Session Key
        $this->client->scrobbleTrack(
            artist: $artist,
            track: $track,
            timestamp: time()
        );
    }
}

⚡ Rate Limiting (Optional)

For high-volume applications, use the powerful symfony/rate-limiter component:

composer require symfony/rate-limiter

1. Configure Rate Limiter

# config/packages/rate_limiter.yaml
rate_limiter:
    lastfm_api:
        policy: 'sliding_window'
        limit: 5  # Last.fm allows 5 requests per second per IP
        interval: '1 second'

2. Configure Bundle

# config/packages/calliostro_lastfm.yaml
calliostro_lastfm:
    api_key: '%env(LASTFM_API_KEY)%'
    api_secret: '%env(LASTFM_SECRET)%'
    rate_limiter: lastfm_api

Choose your rate limit based on your usage:

• Standard access: Use 5/sec (as shown above) for all API operations
• High-volume applications: Consider reducing to 3-4/sec for safety margin

The bundle uses a Guzzle middleware that automatically handles rate limiting by:

• Intercepting outgoing requests before they're sent
• Checking rate limit availability using Symfony's RateLimiter
• Automatically waiting when limits are exceeded (using microsecond precision)
• Retrying requests after the appropriate delay

This seamless integration ensures your application never exceeds API limits without requiring any code changes. Higher rates may result in HTTP 429 responses if rate limiting is not configured.

🤝 Contributing

Contributions are welcome! Please see DEVELOPMENT.md for detailed setup instructions, testing guide, and development workflow.

📄 License

This project is licensed under the MIT License — see the LICENSE file for details.

🙏 Acknowledgments

• Last.fm for providing the excellent music scrobbling and data API
• Symfony for the robust framework and DI container
• calliostro/lastfm-client for the modern client library

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