Redis: keshirovanie i ocheredi v veb-prilozheniyah

Redis — in-memory hranilische dannyh, ispolzuemoe dlya keshirovaniya, sessiy, ocheredey i real-time funktsiy.

Keshirovanie

Redis snizhaet nagruzku na BD:

// LaravelCache::store('redis')->put('key', 'value', 600);$value = Cache::get('key');

// Node.js (ioredis)await redis.setex('key', 600, 'value');const value = await redis.get('key');

Sessii

Hranenie sessiy v Redis dlya masshtabiruemosti:

// Laravel config'session' => [    'driver' => 'redis',    'connection' => 'default',],

Ocheredi (Queues)

Asinhronnaya obrabotka zadach:

// Laravel JobProcessPodcast::dispatch($podcast)->onQueue('processing');

// Zapusk vorkeraphp artisan queue:work --queue=processing

Pub/Sub

Real-time kommunikatsiya mezhdu servisami:

// Publisherredis.publish('channel', 'message');

// Subscriberredis.subscribe('channel', (message) => {  console.log(message);});

Struktury dannyh

• Strings — prostye znacheniya
• Hashes — obekty
• Lists — ocheredi
• Sets — unikalnye kollektsii
• Sorted Sets — reytingi, leaderboards