Setting the target temperature causing an error in the nest thermostat

Question

Setting the target temperature causing an error in the nest thermostat

Setting the target temperature causing the error as shown below. I am using php curl to set the temperature. Any help is appreciated.

object(stdClass)#72 (2) {
    ["cmd"]=>
           string(12) "REINIT_STATE"
     ["pod"]=>
           string(5) "rts04"
}

code:

echo "Setting target temperature...\n";
$success = $nest->setTargetTemperature(150,$device_serial_number);
var_dump($success);

//***********************//
 public function setTargetTemperature($temperature, $serial_number) {
        $serial_number = $this->getDefaultSerial($serial_number);
        $temperature = $this->temperatureInCelsius($temperature, $serial_number);
        echo $temperature;
        $data = json_encode(array('target_change_pending' => TRUE, 'target_temperature' => $temperature));
        return $this->doPOST("/v2/put/shared." . $serial_number, $data);
    }

//************//
 private function doPOST($url, $data_fields) {
        return $this->doRequest('POST', $url, $data_fields);
    }

    private function doRequest($method, $url, $data_fields, $with_retry=TRUE) {


        $ch = curl_init();
        if ($url[0] == '/') {
            $url = $this->transport_url . $url;
        }
        $headers = array('X-nl-protocol-version: ' . self::protocol_version);
        if (isset($this->userid)) {
            $headers[] = 'X-nl-user-id: ' . $this->userid;
            $headers[] = 'Authorization: Basic ' . $this->access_token;
        }
        if (is_array($data_fields)) {
            $data = array();
            foreach($data_fields as $k => $v) {
                $data[] = "$k=" . urlencode($v);
            }
            $data = implode('&', $data);
        } else if (is_string($data_fields)) {
            $data = $data_fields;
        }
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        curl_setopt($ch, CURLOPT_HEADER, FALSE);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
        curl_setopt($ch, CURLOPT_AUTOREFERER, TRUE);
        curl_setopt($ch, CURLOPT_USERAGENT, self::user_agent);
        curl_setopt($ch, CURLOPT_COOKIEJAR, $this->cookie_file);
        curl_setopt($ch, CURLOPT_COOKIEFILE, $this->cookie_file);
        if ($method == 'POST') {
            curl_setopt($ch, CURLOPT_POST, TRUE);
            curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
            $headers[] = 'Content-length: ' . strlen($data);
        }
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        if (DEBUG) {
            curl_setopt($ch, CURLOPT_PROXY, '127.0.0.1:8888');
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
        } else {
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, TRUE); // for security this should always be set to true.

curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);    // for security this should always be set to 2.
            curl_setopt($ch, CURLOPT_SSLVERSION, 1);        // Nest servers now require TLSv1; won't work with SSLv2 or even SSLv3!

            // Update cacert.pem (valid CA certificates list) from the cURL website once a month
            $curl_cainfo = sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'cacert.pem';
            $last_month = time()-30*24*60*60;
            if (!file_exists($curl_cainfo) || filemtime($curl_cainfo) < $last_month || filesize($curl_cainfo) < 100000) {
                file_put_contents($curl_cainfo, file_get_contents('http://curl.haxx.se/ca/cacert.pem'));
            }
            if (file_exists($curl_cainfo) && filesize($curl_cainfo) > 100000) {
                curl_setopt($ch, CURLOPT_CAINFO, $curl_cainfo);
            }
        }
        $response = curl_exec($ch);

        $info = curl_getinfo($ch);

        if ($info['http_code'] == 401 || (!$response && curl_errno($ch) != 0)) {
            if ($with_retry && $this->use_cache()) {
                // Received 401, and was using cached data; let try to re-login and retry.
                @unlink($this->cookie_file);
                @unlink($this->cache_file);
                if ($info['http_code'] == 401) {
                    $this->login();
                }
                return $this->doRequest($method, $url, $data_fields, !$with_retry);
            } else {
                throw new RuntimeException("Error: HTTP request to $url returned an error: " . curl_error($ch), curl_errno($ch));
            }
        }

        $json = json_decode($response);
        if (!is_object($json) && ($method == 'GET' || $url == self::login_url)) {
            if (strpos($response, "currently performing maintenance on your Nest account") !== FALSE) {
                throw new RuntimeException("Error: Account is under maintenance; API temporarily unavailable.", NESTAPI_ERROR_UNDER_MAINTENANCE);
            }
            if (empty($response)) {
                throw new RuntimeException("Error: Received empty response from request to $url.", NESTAPI_ERROR_EMPTY_RESPONSE);
            }
            throw new RuntimeException("Error: Response from request to $url is not valid JSON data. Response: " . str_replace(array("\n","\r"), '', $response), NESTAPI_ERROR_NOT_JSON_RESPONSE);


  }

        if ($info['http_code'] == 400) {
            if (!is_object($json)) {
                throw new RuntimeException("Error: HTTP 400 from request to $url. Response: " . str_replace(array("\n","\r"), '', $response), NESTAPI_ERROR_API_OTHER_ERROR);
            }
            throw new RuntimeException("Error: HTTP 400 from request to $url. JSON error: $json->error - $json->error_description", NESTAPI_ERROR_API_JSON_ERROR);
        }

        // No body returned; return a boolean value that confirms a 200 OK was returned.
        if ($info['download_content_length'] == 0) {
            return $info['http_code'] == 200;
        }

        return $json;
    }