Laravel\Lumen\Concerns\RoutesRequests::sendThroughPipeline PHP Method

    protected function sendThroughPipeline(array $middleware, Closure $then)
    {
        if (count($middleware) > 0 && !$this->shouldSkipMiddleware()) {
            return (new Pipeline($this))->send($this->make('request'))->through($middleware)->then($then);
        }
        return $then();
    }