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<?php declare(strict_types=1);
namespace WyriHaximus\React\Http\Middleware;
use Psr\Http\Message\ServerRequestInterface;
use function React\Promise\resolve;
final class MeasureMiddleware
{
/** @var int */
private $current = 0;
private $total = 0;
/** @var null|float */
private $tookMin = null;
/** @var float */
private $tookMax = 0.0;
private $tookAvg = 0.0;
private $tookTotal = 0.0;
public function __invoke(ServerRequestInterface $request, callable $next)
$this->current++;
$start = \microtime(true);
return resolve($next($request))->always(function () use ($start): void {
$took = \microtime(true) - $start;
$this->current--;
$this->total++;
$this->tookTotal += $took;
if ($this->tookMin === null || $took < $this->tookMin) {
$this->tookMin = $took;
}
if ($this->tookMax < $took) {
$this->tookMax = $took;
$this->tookAvg = $this->tookTotal / $this->total;
});
public function collect(): iterable
yield 'current' => $this->current;
yield 'total' => $this->total;
yield 'took.min' => $this->tookMin === null ? 0.0 : $this->tookMin;
yield 'took.max' => $this->tookMax;
yield 'took.average' => $this->tookAvg;
yield 'took.total' => $this->tookTotal;
$this->total = 0;
$this->tookMin = null;
$this->tookMax = 0.0;
$this->tookAvg = 0.0;
$this->tookTotal = 0;
$tookTotal
double
0
integer
This check looks for assignments to scalar types that may be of the wrong type.
To ensure the code behaves as expected, it may be a good idea to add an explicit type cast.
$answer = 42; $correct = false; $correct = (bool) $answer;
public function cancel(): void
// Does not apply to this class
WyriHaximus /
reactphp-http-middleware-measure
This check looks for assignments to scalar types that may be of the wrong type.
To ensure the code behaves as expected, it may be a good idea to add an explicit type cast.