public function sendRequest()

in src/Client.php [183:209]
24 lines of code
7 McCabe index (conditional complexity)

    public function sendRequest(RequestInterface $request)
    {   
        // If async returns a Promise
        if ($this->getAsync()) {
            if ($this->getElasticMetaHeader()) {
                $this->transport->setElasticMetaHeader(Client::CLIENT_NAME, Client::VERSION, true);
            }
            $this->transport->setAsyncOnSuccess(
                $request->getMethod() === 'HEAD'
                    ? new AsyncOnSuccessNoException($this)
                    : ($this->getResponseException() ? new AsyncOnSuccess($this) : new AsyncOnSuccessNoException($this))
            );
            return $this->transport->sendAsyncRequest($request);
        }     

        if ($this->getElasticMetaHeader()) {
            $this->transport->setElasticMetaHeader(Client::CLIENT_NAME, Client::VERSION, false);
        }
        $start = microtime(true);
        $response = $this->transport->sendRequest($request);
        $this->logger->info(sprintf("Response time in %.3f sec", microtime(true) - $start));       

        $result = new Elasticsearch;
        $result->setResponse($response, $request->getMethod() === 'HEAD' ? false : $this->getResponseException());
        $this->serverless = $result->isServerless();
        return $result;
    }