I get "500 Backend Error" and "400 invalidMetadata" from youtube-api - php

Question

I use PHP to insert/update the title and description of our video by using youtube-api and I get some problems with it.
1.
When I insert/update title and description of video by using zh-Hant or zh-Hans, I get "500 Backend Error."
However it works when I change zh-Hant and zh-Hans to zh-tw and zh-cn.
500 Backend Error
2.
I get "400 invalidMetadata" when I update a video title by using Italian(it).
I have no idea about this because it's all fine in others languages and it also fine in update video description by using Italian.
400 invalidMetadata
How can I fix these problems?
Here is my code:
public function __construct()
{
$client = new \Google_Client();
$client->setAuthConfig(storage_path('key/youtube_key/client_secret.json'));
$client->setApplicationName("String System");
$client->setScopes('https://www.googleapis.com/auth/youtube.force-ssl');
$client->setAccessType('offline');
$client->setAccessToken(Cache::get('google_auth_token'));
$this->client = $client;
}
public function youtubeService($stringKey, $stringValue, $language)
{
$this->service = new \Google_Service_YouTube($this->client);
$this->stringKey = $stringKey;
$this->stringValue = $stringValue;
$this->language = $language;
$key = explode('_', $this->stringKey);
if (3 != count($key)) {
return;
}
list($videoName, $videoID, $type) = $key;
$this->videoName= $videoName;
$this->videoID = $videoID;
switch ($type) {
case 'title':
$this->updateTitle();
break;
case 'description':
$this->updateDesc();
break;
}
return;
}
private function updateTitle()
{
// get video list by video ID
$video = $this->service->videos->listVideos(
'snippet,localizations',
['id' => $this->videoID]
);
$videoInfo = $video->items[0];
// set video title of language
if (isset($videoInfo->localizations[$this->language])) {
$videoInfo->localizations[$this->language]->title =
$this->stringValue;
// check default language
if ($this->language === $videoInfo->snippet->defaultLanguage) {
$videoInfo->snippet->title = $this->stringValue;
}
} else {
$videoInfo->localizations[$this->language] = [
'title' => $this->stringValue,
'description' => 'description'
];
}
try {
// update video information
$this->service->videos->update(
'snippet,localizations',
$videoInfo
);
} catch (Exception $e) {
// do nothing and continue
}
return;
}
private function updateDesc()
{
// get video list by video ID
$video = $this->service->videos->listVideos(
'snippet,localizations',
['id' => $this->videoID]
);
$videoInfo = $video->items[0];
// set video description of language
if (isset($videoInfo->localizations[$this->language])) {
$videoInfo->localizations[$this->language]->description =
$this->stringValue;
// check default language
if ($this->language === $videoInfo->snippet->defaultLanguage) {
$videoInfo->snippet->description = $this->stringValue;
}
} else {
$videoInfo->localizations[$this->language] = [
'title' => 'title',
'description' => $this->stringValue
];
}
try {
// update video information
$this->service->videos->update(
'snippet,localizations',
$videoInfo
);
} catch (Exception $e) {
// do nothing and continue
}
return;
}

Answer 1

It seems that the language that you used (zh-Hant & zh-Hans) is not supported as of the moment.
To verify whether a language is supported or not, you may utilize i18nLanguages.list API. Here's a sample request using API explorer.
https://developers.google.com/apis-explorer/#p/youtube/v3/youtube.i18nLanguages.list?part=snippet&_h=1&