Caching with PSR-6 Laravel Barcelona @laravelbcn @ hannesvdvreken - - PowerPoint PPT Presentation

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Caching with PSR-6 Laravel Barcelona @laravelbcn @ hannesvdvreken - - PowerPoint PPT Presentation

Nov 07, 2022 141 likes •694 views

Caching with PSR-6 Laravel Barcelona @laravelbcn @ hannesvdvreken Hi, my name is Hannes. made with love.be 20 PSR-6 Caching in PHP anno 2016 1. Intro 2. Caching in 2015 3. Hello PSR-6 4. Practical

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Caching with PSR-6

Laravel Barcelona  @hannesvdvreken @laravelbcn

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Hi, my name is Hannes.

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🏄💼

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madewithlove.be

20 × 😎



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PSR-6

Caching in PHP anno 2016

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  • 1. Intro
  • 2. Caching in 2015
  • 3. Hello PSR-6
  • 4. Practical
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  • 1. Intro

what is caching?

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WHAT IS CACHING

Speeding up your app

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WHAT IS CACHING

  • 1. Execute slow task

2.Remember result 3.Use stored value

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WHAT IS CACHING

Should not cause app failure

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WHAT IS CACHING - EXAMPLES

  • HTTP Request
  • Slow DB call
  • Process image/zip/…
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WHAT IS CACHING

Should not cause app failure

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WHAT IS CACHING

geocode IP check cache store result check cache

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WHAT IS CACHING

Should not cause app failure

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WHAT IS CACHING

At different layers:

User-Agent Webserver (Varnish/Nginx) Application Opcache

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WHAT IS CACHING

Should not cause app failure

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  • 2. Caching in 2015

the state of caching (pre PSR-6)

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APPLICATION CACHING IN 2015

  • 1. Libraries do it

2.Frameworks do it 3.Cache libs do it

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APPLICATION CACHING IN 2015

Frameworks & cache libs have their own:

  • interfaces
  • support for caching systems
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APPLICATION CACHING IN 2015

Adapters everywhere!

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APPLICATION CACHING IN 2015

If no adapter available

  • Write your own
  • Store in different cache stores
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  • 3. Hello PSR-6

what does that mean?

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INTRODUCING PSR-6

Finalised & accepted in December 2015

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INTRODUCING PSR-6

Repository - Entity

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INTRODUCING PSR-6

use Psr\Cache\CacheItemPoolInterface; use Psr\Cache\CacheItemInterface; $item = $pool->getItem($key); $item->getKey();

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INTRODUCING PSR-6

Lemme see that code

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INTRODUCING PSR-6

Don’t instantiate your own Items.

$item = $pool->getItem(‘key’)

  • >set($value)
  • >expiresAfter(3600);

$pool->save($item);

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INTRODUCING PSR-6

Item is an entity, it’s not immutable, but the Key is

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INTRODUCING PSR-6

CacheItemInterface has no getExpiresAt

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INTRODUCING PSR-6

Pool has support for multi-actions $pool->getItems($keys); $pool->saveDeferred($item); $pool->commit();

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INTRODUCING PSR-6

Repository - Entity model allows extensions

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INTRODUCING PSR-6

Cache features:

  • Stampede protection:

Parallel incoming requests executing long process to update cache value

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INTRODUCING PSR-6

Cache features:

  • Stampede protection
  • Taggable cache

$item->addTags(['cat-1']); $pool->clearTags(['cat-1']);

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INTRODUCING PSR-6

Cache features:

  • Stampede protection
  • Taggable cache
  • Hierarchical cache

$pool->delete('tree/*');

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  • 4. Practical

who uses it, and how can I use it?

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START USING IT

Integration tests for implementations: cache/integration-tests

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START USING IT

class PoolIntegrationTest extends CachePoolTest { public function createCachePool() { return new CachePool(); } }

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START USING IT - UPGRADE

Upgrade paths

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START USING IT - UPGRADE

Libraries

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START USING IT - UPGRADE

Libraries (next major versions) have a PSR-6 caching decorator

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START USING IT - UPGRADE

Frameworks

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START USING IT - UPGRADE

Start using PSR-6 enabled libraries with adapters for current FW’s implementation.

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START USING IT - UPGRADE

Example: Laravel PSR-6 bridge

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  • 1. Intro
  • 2. Caching in 2015
  • 3. Hello PSR-6
  • 4. Practical

RECAP

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Hello PSR-16

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Thank you!

https:/ /joind.in/talk/xxxxx @hannesvdvreken @laravelbcn

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Questions & discussions

@hannesvdvreken @laravelbcn