How to get more result using node-youtube getbyId() method - node.js

Question

I am using node-youtube(data api) to get the result of youtube-saerch by id. When I write
res.render('index',{data:(JSON.stringify(result, null, 2))}); then I get two results. But when i write res.render('index',{data:result}); then i get only when result. How can i get more results by simply writing res.render('index',{data:result});
rather than writing
res.render('index',{data:(JSON.stringify(result, null, 2))});
Here is the code of getbyId() metod.
var YouTube = require('youtube-node');
var youTube = new YouTube();
youTube.setKey('*************************');
youTube.getById('HcwTxRuq-uk', function(error, result) {
if (error) {
console.log(error);
}
else {
res.render('index',{data:(JSON.stringify(result, null, 2))});
}
});
I have also tried JSON.parse() method.
like this
var str=(JSON.stringify(result, null, 3));
var data=JSON.parse(str);
In str there are 3 results but in data there is only 1 result. why it return
one result. Also can i get 3 results using JSON.parse().

Answer 1

I hope this is what you want
Also notice there's no need for JSON.stringify at all
var YouTube = require('youtube-node');
var youTube = new YouTube();
youTube.setKey('************************************');
youTube.search('World War z Trailer', 2, function(error, result) {
if (error) {
console.log(error);
} else {
// result should contain 2 videos with some info
// to get more info use getById
var videos = [];
var video1 = result.items[0].id.videoId;
var video2 = result.items[1].id.videoId;
//get 1st video
youTube.getById(video1, function(error, result) {
if (!error) videos.push(result.items[0]);
// get 2nd video
youTube.getById(video2, function(error, result) {
if (!error) videos.push(result.items[0]);
//console.log(videos[0]);
//console.log(videos[1]);
res.render('index',{data:videos)});
});
});
}
});

Answer 2

I know this is not exactly your question, but I think it could help you to see how I'm doing in one of my projects.
If your videos are in a playlist, you can fetch up to 50 videos at the same time and use the pageToken to fetch more if you want more videos from the playlist.
You can fetch the playlist like this :
/**
* Return an array about the videos contained in the GEM-MECHANIC playlist (based on the selected language).
*
* #param $errorMessage String to return the error message.
* #param $language Int language code for which we must fetch the video (default 1 = english)
* #param $maxVideo Int maximum of video we must fetch with the request (<= 0 mean infinite, 5 if invalid)
* #param $playList Int Playlist which want to fetch (Use PlayList class constants).
*
* #return Bidimensionnal Array
*/
static public function getVideoList(&$errorMessage, $language = 1, $maxVideo = 0, $playList = PlayList::GEM_CAR){
$errorMessage = "";
$list = array();
$gemPlayList = self::getPlayList($playList);
if (array_key_exists($language, $gemPlayList)){
if (!is_numeric($maxVideo) or $maxVideo < 0){
$maxVideo = 5;
}
$list = self::fetchVideoList($errorMessage, $gemPlayList[$language], $maxVideo);
}
elseif(empty($gemPlayList)){
$errorMessage = GeneralDbManager::getInstance()->getErrorMessage("GEM_MECHANIC_INVALID_PLAYLIST_ERR", "The selected playlist doesn't exists.");
}
else{
$errorMessage = GeneralDbManager::getInstance()->getErrorMessage("GEM_MECHANIC_INVALID_LANGUAGE_ERR", 'The selected playlist do not contains videos for the language selected.');
}
return $list;
}
/**
* Return an array about the videos contained in the GEM-MECHANIC playlist (based on the selected language).
*
* #param $errorMessage String to return the error message.
* #param $playListId String id of the youtube playlist for which we want to fetch the video list.
* #param $maxVideo Int maximum of video we must fetch with the request
* #param $maxVideo Int number of videos with fetched so far.
* #param $nextToken String to use to fetch more videos.
*
* #return Bidimensionnal Array
*/
private static function fetchVideoList(&$errorMessage, $playListId, $maxVideo, $currentCount = 0, $nextToken = "", $currentList = array()){
if ($currentCount < $maxVideo or $maxVideo === 0) {
$result = abs($maxVideo - $currentCount);
$param = array('playlistId' => $playListId);
if ($result > 50 or $result === 0){
$param['maxResults'] = 50;
$result = 50;
}
else{
$param['maxResults'] = $result;
}
if (!empty($nextToken)){
$param['pageToken'] = $nextToken;
}
try{
$client = new Google_Client();
$client->setDeveloperKey(self::$apiKey);
$youtube = new Google_Service_YouTube($client);
$playList = $youtube->playlistItems->listPlaylistItems('contentDetails, snippet', $param);
unset($youtube);
unset($client);
foreach($playList as $video){
$currentList[] = array('id' => $video['contentDetails']['videoId'], "title" => $video['snippet']['title'], "check" => 0);
}
$currentCount += $result;
if (empty($errorMessage) and !is_null($playList['nextPageToken']) and $currentCount < $maxVideo){
self::fetchVideoList($errorMessage, $language, $maxVideo, $currentCount, $playList['nextPageToken'], $currentList);
}
unset($playList);
}
catch (Google_Exception $exception) {
ExceptionLogger::logException($exception);
$errorMessage = GeneralDbManager::getInstance()->getErrorMessage("GEM_MECHANIC_CANT_FETCH_VIDEO_ERR", 'We are currently not able to fetch the video list from Youtube.');
}
}
return $currentList;
}