Seekable Body Plugins

RequestSeekableBodyPlugin and ResponseSeekableBodyPlugin ensure that body used in request and response is always seekable. This allows a lot of components, reading the stream, to rewind it in order to be used later by another component:

use Http\Discovery\HttpClientDiscovery;
use Http\Client\Common\PluginClient;
use Http\Client\Common\Plugin\RequestSeekableBodyPlugin;
use Http\Client\Common\Plugin\ResponseSeekableBodyPlugin;

$options = [
    'use_file_buffer' => true,
    'memory_buffer_size' => 2097152,
$requestSeekableBodyPlugin = new RequestSeekableBodyPlugin($options);
$responseSeekableBodyPlugin = new ResponseSeekableBodyPlugin($options);

$pluginClient = new PluginClient(
    [$requestSeekableBodyPlugin, $responseSeekableBodyPlugin]

Those plugins support the following options (which are passed to the BufferedStream class):

  • use_file_buffer: Whether it should use a temporary file to buffer the body of a stream if it’s too big

  • memory_buffer_size: Maximum memory to use for buffering the stream before it switch to a file

RequestSeekableBodyPlugin should be added in top of your plugins, then next plugins can seek request body (i.e. for logging purpose). ResponseSeekableBodyPlugin should be the last plugin, then previous plugins can seek response body.