本篇文章给大家带来的内容是关于laravel接入prometheus的代码示例，有一定的参考价值，有需要的朋友可以参考一下，希望对你有所帮助。
在原有的基础上增加Counter计数器：
namespace AppHttpMiddleware; use Closure; use IlluminateHttpRequest; use traumferienwohnungenPrometheusExporterMiddlewareAbstractResponseTimeMiddleware; class PrometheusMonitor extends AbstractResponseTimeMiddleware { protected function getRouteNames() { $routeNames = []; foreach (Route::getRoutes() as $route){ $routeNames[] = '/'.ltrim($route->uri(), '/'); } return $routeNames; } /** * Handle an incoming request. * * @param IlluminateHttpRequest $request * @param Closure $next * @return mixed */ public function handle(Request $request, Closure $next) { if (defined('laravel_START')){ $start = LARAVEL_START; } elseif (defined('LUMEN_START')){ $start = LUMEN_START; } else { $start = microtime(true); } $this->request = $request; /** @var IlluminateHttpResponse $response */ $response = $next($request); $route_name = $this->getRouteName(); $method = $request->getMethod(); $status = $response->getStatusCode(); $duration = microtime(true) - $start; $duration_milliseconds = $duration * 1000.0; $this->countRequest($route_name, $method, $status, $duration_milliseconds); $this->initRequestMetrics($method, $status); return $response; } public function getRouteName(){ return request()->getRequestUri(); } public function initRequestMetrics($method, $status) { $namespace = config('prometheus_exporter.namespace_http_server'); $labelNames = $this->getRequestCounterLabelNames(); $name = 'request_wuc'; $help = 'http_requests count'; $counter = $this->registry->getOrRegisterCounter( $namespace, $name, $help, $labelNames ); $counter->incBy(1, [$this->getRouteName(), $method, $status]); } }
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