brightfish / caching-guzzle
Cache HTTP responses through Guzzle middleware
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Requires
- php: ^7.1|^8.0
- guzzlehttp/guzzle: ^6.3|^7.0
- psr/simple-cache: ^1
Requires (Dev)
- friendsofphp/php-cs-fixer: ^2.16
- phpunit/phpunit: ^9.6
README
Simple and transparent HTTP response caching middleware for Guzzle, works well with Laravel or with any caching library implementing the PSR-16 caching interface.
Installation
You can install the library with Composer: composer require brightfish/caching-guzzle
How to use
The registration of the middleware follows Guzzle's documentation:
/** @var \Psr\SimpleCache\CacheInterface $cache */ $cache = app('cache')->store('database'); // Laravel example, but any PSR-16 cache will do $middleware = new \Brightfish\CachingGuzzle\Middleware($cache); $stack = \GuzzleHttp\HandlerStack::create(); $stack->push($middleware); $client = new \GuzzleHttp\Client([ 'handler' => $stack, 'base_uri' => 'https://example.org/api/' ]);
Instantiation parameters
Next to a PSR-16 compliant cache, the middleware takes two optional parameters:
$ttl
, the default cache duration, which can be overridden by each request$log
, instructs the package to log cache hits Laravel's log or PHP's defaulterror_log
(see source).
$middleware = new \Brightfish\CachingGuzzle\Middleware($store, $ttl = 60, $log = true);
Making requests
Available options:
Example: cache the response for 90s (default: 60)
$response_1 = $guzzleClient->get('resource', [ 'cache_ttl' => 90 ]);
Example: request anew and update the cache
$response_3 = $guzzleClient->post('resource/84', [ 'cache_anew' => true ]);
Example: disable caching
$response_2 = $guzzleClient->post('resource/84', [ 'cache' => false ]);
Example: cache forever with a custom key
$response_4 = $guzzleClient->post('resource/84', [ 'cache_key' => 'my-key', 'cache_ttl' => -1 ]);
If cache_ttl
is set to 0
the response will not be cached, but, contrary to 'cache' => false
, it may be retrieved from it.
Example: cache retrieval
# Get response_1 from cache. $cached_response_1 = $cache->get('//example.org/api/resource'); # Get response_4 from cache. $cached_response_4 = $cache->get('my-key');
Using the wrapper
Instead of manually configuring Guzzle's client and the caching middleware, it is also possible to instantiate the Client
class provided by this package. This way, the binding of the middleware is done for you.
use Brightfish\CachingGuzzle\Client; /** @var \Psr\SimpleCache\CacheInterface $store */ $psrCompatibleCache = new Cache(); $client = new Client($psrCompatibleCache, [ 'cache_ttl' => 60, // default cache duration 'cache_log' => false, // log the cache hits // Guzzle options: 'base_uri' => 'https://example.org/api/' // ... ]);
Contributing
Please see CONTRIBUTING for details.
Security Vulnerabilities
Please review our security policy on how to report security vulnerabilities.
Credits
License
GNU General Public License (GPL). Please see the license file for more information.