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<?php
namespace SamuelBednarcik\ElasticAPMAgent\Tracing;
use Psr\Http\Message\RequestInterface;
use SamuelBednarcik\ElasticAPMAgent\Agent;
use SamuelBednarcik\ElasticAPMAgent\TraceParent;
class TracingGuzzleMiddleware
{
/**
* @var Agent
*/
private $agent;
public function __construct(Agent $agent)
$this->agent = $agent;
}
* @param callable $handler
* @return \Closure
public function __invoke(callable $handler)
return function (RequestInterface $request, array $options) use ($handler) {
$transaction = $this->agent->getTransaction();
if ($transaction !== null) {
if ($transaction->getTraceId() !== null && $transaction->getId() !== null) {
$header = new TraceParent($transaction->getTraceId(), $transaction->getId(), '01');
$request = $request->withHeader(TraceParent::HEADER_NAME, $header->__toString());
return $handler($request, $options);
};
samuelbednarcik /
elastic-apm-php-agent
