Send Notification on Expo ReactNative App from Laravel | PHP

     public function notifyApp($app_id){        $payload = array(            'to' => $app_id,            'sound' => 'default',            'body' => "New Task Assigned"        );        $curl = curl_init();        curl_setopt_array($curl, array(        CURLOPT_URL => "https://exp.host/--/api/v2/push/send",        CURLOPT_RETURNTRANSFER => true,        CURLOPT_ENCODING => "",        CURLOPT_MAXREDIRS => 10,        CURLOPT_TIMEOUT => 30,        CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,        CURLOPT_CUSTOMREQUEST => "POST",        CURLOPT_POSTFIELDS => json_encode($payload),        CURLOPT_HTTPHEADER => array(            "Accept: application/json",            "Accept-Encoding: gzip, deflate",            "Content-Type: application/json",            "cache-control: no-cache",            "host: exp.host"        ),        ));        $response = curl_exec($curl);        $err = curl_error($curl);        curl_close($curl);        if ($err) {        echo "cURL Error #:" . $err;        } else {        echo $response;        }    }