Jesse Nicola | Contract Drupal Web Developer

As with many things in Drupal 8... the switch from Drupal 7 changed so many things, that nearly all of the previous decades worth of documentation build up became lost. That means a lot of the simple useful explanations for basic questions are not present, and more often than not a search will instead yield some obtuse philosophical explanation for something. 

When it comes to bringing cache in via Dependency injection, there just wasn't a solid example out there at all. So, here's the first for you all!

use Drupal\Core\Cache\CacheBackendInterface;

/**
 *  constructor.
 */
public function __construct(CacheBackendInterface $staticCache) {
  $this->cache = $staticCache;
}

/**
 * {@inheritdoc}
 */
public static function create(ContainerInterface $container) {
  return new static(
    $container->get('cache.default'),
  );
}