TimingMiddleware

Records timing spans for downstream middleware execution.

Synopsis

class TimingMiddleware implements MiddlewareInterface

Implements	MiddlewareInterface
Source	Middleware/TimingMiddleware.php

Constructor

__construct()

public function __construct(bool $emitHeader = false, ClockInterface $clock = new SystemClock(…)): mixed

Parameter	Type	Description
$emitHeader	bool
$clock	ClockInterface

Returns mixed

Methods

Method	Description
process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface	Measures total pipeline time into the request’s ExecutionState metrics.

process()

public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface

Measures total pipeline time into the request’s ExecutionState metrics.

Runs at the head of the bootstrap phase so the measurement spans essentially the whole stack. Reuses the ExecutionState already on the request, or creates one and attaches it, then writes total_ms into its metrics after the downstream handler returns. The X-Quiote-Timing header is added only when the constructor enabled it, and is skipped without complaint if the metrics cannot be JSON-encoded.

Parameter	Type	Description
$request	ServerRequestInterface
$handler	RequestHandlerInterface

Returns ResponseInterface