Use and test with etag params

[kevinrob]

Use and test with etag params

[Kevinrob]

Hi,
of course!

use GuzzleHttp\Client;
use GuzzleHttp\HandlerStack;
use Kevinrob\GuzzleCache\CacheMiddleware;

// Create default HandlerStack
$stack = HandlerStack::create();

// Create the cache middleware
// You can customise the cache storage, see the doc
$cache = new CacheMiddleware();

// Add this middleware to the top with `push`
$stack->push($cache, 'cache');

// Initialize the client with the handler option
$client = new Client(['handler' => $stack]);

// Now you can use Guzzle...

To test if the cache HIT, you can check the header:

$response->getHeaderLine(CacheMiddleware::HEADER_CACHE_INFO)

If you have any problem, tell me!

[Kevinrob]

If you need more help, re-open this issue.

[gnutix]

Hello! I just needed to do the exact same thing in my tests and your code worked perfectly (it returns "HIT" or "MISS").

However, when I try to do something like this :

$this->assertEquals(304, $response->getStatusCode());
$this->assertEmpty($response->getBody()->getContents());

It fails and gives me the same data as the first request (200, with a body). Any idea why ? I'm using Symfony2's $response->isNotModified() to check if it should return the cached response with a 304 status code and empty content.

[Kevinrob]

@gnutix The cache will change code from 304 to 200 and fill the body with the cache. It's transparent from the caller.
You can check CacheMiddleware::HEADER_CACHE_INFO header for debugging/testing information.

[gnutix]

OK thanks!