# Caching

Estimated time: 8 minutes
Difficulty: Intermediate

Effective caching can make your application 10-100x faster. LaraCoreKit supports multiple cache drivers out of the box.

Cache Drivers

Set in .env:

CACHE_DRIVER=redis

Basic Cache Operations

use Illuminate\Support\Facades\Cache;

// Store a value (seconds TTL)
Cache::put('key', $value, 3600);

// Store with Carbon TTL
Cache::put('key', $value, now()->addHours(6));

// Store forever
Cache::forever('key', $value);

// Retrieve
$value = Cache::get('key');
$value = Cache::get('key', 'default_value');

// Check existence
Cache::has('key');

// Remove
Cache::forget('key');

// Clear all cache
Cache::flush();

The Remember Pattern (Most Common)

// Only queries DB if cache misses
$posts = Cache::remember('home_posts', 3600, function () {
    return Post::published()->latest()->take(6)->get();
});

// Remember forever
$settings = Cache::rememberForever('app_settings', function () {
    return Setting::all()->pluck('value', 'key');
});

Cache in Livewire Components

use Illuminate\Support\Facades\Cache;
use Livewire\Attributes\Computed;

class BlogList extends Component
{
    #[Computed]
    public function posts()
    {
        return Cache::remember('blog_list_' . $this->page, 300, function () {
            return Post::published()
                ->locale(app()->getLocale())
                ->latest()
                ->paginate(12);
        });
    }
}

Cache Tags

Group related cache items for easy invalidation:

// Store with tags
Cache::tags(['posts', 'homepage'])->put('featured_posts', $posts, 3600);

// Retrieve with tags
$posts = Cache::tags(['posts'])->get('featured_posts');

// Invalidate all 'posts' tagged caches at once
Cache::tags(['posts'])->flush();

Note: Cache tags require Redis or Memcached driver.

Model Cache Events

Auto-clear cache when model changes:

class Post extends Model
{
    protected static function booted(): void
    {
        static::saved(function () {
            Cache::tags(['posts'])->flush();
        });

        static::deleted(function () {
            Cache::tags(['posts'])->flush();
        });
    }
}

HTTP Response Caching

Cache entire HTTP responses:

// In a controller
return response()
    ->view('blog.index', compact('posts'))
    ->header('Cache-Control', 'public, max-age=3600')
    ->header('ETag', md5($posts->toJson()));

Artisan Cache Commands

# Clear application cache
php artisan cache:clear

# Clear config cache
php artisan config:clear

# Clear all compiled/cached files
php artisan optimize:clear

Next Steps

Queues →