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YouTube API v3: How to get 404 (not found) response error from PlaylistItems?

I know I can iterate over playlists to compare if a playlist exists on Youtube, but that makes two calls (example below), and since I already know the playlist ID, I just have to make one call.

Two calls on YouTube to play playlists (not the way I want to do this):

# Playlist ID from URL $playlist=$_GET['playlist']; # Playlists from YoUtube $playlists=$yt->PlaylistsListFeed(); # Loop through the playlists. foreach($playlists as $playlist_feed) { if($playlist_feed['id']==$playlist) { # This is a playlist $this->setIsPlaylist(TRUE); # Assign the Playlist Items to a variable. $video_search=$yt->PlaylistItems($playlist_feed['id']); break; } } # If $video_search is not set then playlist does not exist. if(!isset($video_search)) { return $display='That playlist doesn\'t exist. Please choose another.'; }

I have code that works for a single call, but I can’t figure out how to get the 404 error that it returns if the playlist id does not exist (YouTube results below).

YouTube Method ( PlaylistItems ):

 /** * PlaylistItems * * Retrieves videos from a playlist. * * @param int $playlist_id The ID of the playlist. * @param string $part The part parameter specifies a comma-separated list of * one or more playlistItem resource properties that the API * response will include. The part names that you can include * in the parameter value are id, snippet, and contentDetails. * @access public */ public function PlaylistItems($playlist_id, $part='snippet') { # Set the Database instance to a variable. $doc=Document::getInstance(); try { # Bring $youtube_service into the scope global $youtube_service; $playlistsItems_optParams=array('maxResults' => 50, 'playlistId' => $playlist_id); $playlistsItems=$youtube_service->playlistItems->listPlaylistItems($part, $playlistsItems_optParams); $new_array=$this->rebuildArray($playlistsItems, TRUE); # Instantiate a new Utility object. $utility=new Utility(); # Sort the playlist array by date. $items=$utility->sortByDate($new_array, 'publishedAt'); return $items; } catch(Exception $e) { # Print Results (below) print_r($e); exit; if($e->getCode()==404) { $doc->setError('That playlist doesn\'t exist. Please choose another.'); } } } #==== End -- PlaylistItems

Single call code:

 # Playlist ID from URL $playlist=$_GET['playlist']; # Assign the Playlist Items to a variable. $video_search=$yt->PlaylistItems($playlist);

Return from the PlaylistItems Method

 Google_ServiceException Object ( [errors:protected] => Array ( [0] => Array ( [domain] => youtube.playlistItem [reason] => playlistNotFound [message] => Not Found [locationType] => parameter [location] => playlistId ) ) [message:protected] => Error calling GET https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&maxResults=50&playlistId=PLD2D6E64D9CD49E1&key=AIzaSyDVGJhk7DfKKJAaciX14aqyw_YbPaT4fp4: (404) Not Found [string:Exception:private] => [code:protected] => 404 [file:protected] => /Volumes/Coding/WebDev/CWIS/cwis.org/application/modules/Social/Google/io/Google_REST.php [line:protected] => 66 [trace:Exception:private] => Array ( [0] => Array ( [file] => /Volumes/Coding/WebDev/CWIS/cwis.org/application/modules/Social/Google/io/Google_REST.php [line] => 36 [function] => decodeHttpResponse [class] => Google_REST [type] => :: [args] => Array ( [0] => Google_HttpRequest Object ( [batchHeaders:Google_HttpRequest:private] => Array ( [Content-Type] => application/http [Content-Transfer-Encoding] => binary [MIME-Version] => 1.0 [Content-Length] => ) [url:protected] => https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&maxResults=50&playlistId=PLD2D6E64D9CD49E1&key=AIzaSyDVGJhk7DfKKJAaciX14aqyw_YbPaT4fp4 [requestMethod:protected] => GET [requestHeaders:protected] => Array ( ) [postBody:protected] => [userAgent:protected] => google-api-php-client/0.6.0 [responseHttpCode:protected] => 404 [responseHeaders:protected] => Array ( [content-type] => application/json; charset=UTF-8 [date] => Thu, 18 Jul 2013 05:11:11 GMT [expires] => Thu, 18 Jul 2013 05:11:11 GMT [cache-control] => private, max-age=0 [x-content-type-options] => nosniff [x-frame-options] => SAMEORIGIN [x-xss-protection] => 1; mode=block [server] => GSE [transfer-encoding] => chunked ) [responseBody:protected] => { "error": { "errors": [ { "domain": "youtube.playlistItem", "reason": "playlistNotFound", "message": "Not Found", "locationType": "parameter", "location": "playlistId" } ], "code": 404, "message": "Not Found" } } [accessKey] => ) ) ) [1] => Array ( [file] => /Volumes/Coding/WebDev/CWIS/cwis.org/application/modules/Social/Google/service/Google_ServiceResource.php [line] => 186 [function] => execute [class] => Google_REST [type] => :: [args] => Array ( [0] => Google_HttpRequest Object ( [batchHeaders:Google_HttpRequest:private] => Array ( [Content-Type] => application/http [Content-Transfer-Encoding] => binary [MIME-Version] => 1.0 [Content-Length] => ) [url:protected] => https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&maxResults=50&playlistId=PLD2D6E64D9CD49E1&key=AIzaSyDVGJhk7DfKKJAaciX14aqyw_YbPaT4fp4 [requestMethod:protected] => GET [requestHeaders:protected] => Array ( ) [postBody:protected] => [userAgent:protected] => google-api-php-client/0.6.0 [responseHttpCode:protected] => 404 [responseHeaders:protected] => Array ( [content-type] => application/json; charset=UTF-8 [date] => Thu, 18 Jul 2013 05:11:11 GMT [expires] => Thu, 18 Jul 2013 05:11:11 GMT [cache-control] => private, max-age=0 [x-content-type-options] => nosniff [x-frame-options] => SAMEORIGIN [x-xss-protection] => 1; mode=block [server] => GSE [transfer-encoding] => chunked ) [responseBody:protected] => { "error": { "errors": [ { "domain": "youtube.playlistItem", "reason": "playlistNotFound", "message": "Not Found", "locationType": "parameter", "location": "playlistId" } ], "code": 404, "message": "Not Found" } } [accessKey] => ) ) ) [2] => Array ( [file] => /Volumes/Coding/WebDev/CWIS/cwis.org/application/modules/Social/Google/contrib/Google_YoutubeService.php [line] => 425 [function] => __call [class] => Google_ServiceResource [type] => -> [args] => Array ( [0] => list [1] => Array ( [0] => Array ( [part] => snippet [maxResults] => 50 [playlistId] => PLD2D6E64D9CD49E1 ) ) ) ) [3] => Array ( [file] => /Volumes/Coding/WebDev/CWIS/cwis.org/application/modules/Media/YouTube.php [line] => 412 [function] => listPlaylistItems [class] => Google_PlaylistItemsServiceResource [type] => -> [args] => Array ( [0] => snippet [1] => Array ( [maxResults] => 50 [playlistId] => PLD2D6E64D9CD49E1 ) ) ) [4] => Array ( [file] => /Volumes/Coding/WebDev/CWIS/cwis.org/application/modules/Media/Video.php [line] => 1130 [function] => PlaylistItems [class] => YouTube [type] => -> [args] => Array ( [0] => PLD2D6E64D9CD49E1 ) ) [5] => Array ( [file] => /Volumes/Coding/WebDev/CWIS/cwis.org/public/media/video/index.php [line] => 59 [function] => displayVideoFeed [class] => Video [type] => -> [args] => Array ( ) ) ) [previous:Exception:private] => )

As you can see, all this is either protected or private , since I have to know if there was an error or not?

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2 answers

In the end, I just listed the videos from YouTube and got their statuses. This runs as a cron script every 10 minutes.

 # Get new uploaded videos from the database. $get_new_videos=$db->get_results('SELECT `id`, `file_name`, `api` FROM `'.DBPREFIX.'videos` WHERE `new` IS NULL'); # If there are new videos... if($get_new_videos>0) { # Loop through the new videos foreach($get_new_videos as $new_video) { # Decode the `api` field. $api_decoded=json_decode($new_video->api); # Get the YouTube Video ID. $video_yt_id=$api_decoded->youtube_id; if(isset($new_video->file_name)) { # Set the path to the video on the server. $video_path='videos'.DS.$new_video->file_name; } $to=TO_USER; $reply_to=FROM_SERVER; $subject="Video status from ".DOMAIN_NAME; $body=''; # Check the video status. $check_status=$yt->listVideos('status', array('id' => $video_yt_id)); # Did YouTube return results? if(!empty($check_status['items'])) { # Has the video been processed? Default is TRUE. will be changed to FALSE if the video still has "uploaded" status. $processed=TRUE; # Loop through the videos from YouTube. foreach($check_status['items'] as $status) { if($status['status']['uploadStatus']=="uploaded") { # The video has not been processed yet so do not send an email. $processed=FALSE; } # Check to see if the YouTube upload was a success. elseif($status['status']['uploadStatus']=="processed") { # Tell the user the video was uploaded. $body.='Your video has been uploaded to YouTube and can be viewed at http://'.FULL_DOMAIN.'media/videos/?video='.$new_video->id; } # Check if the uploaded video status is rejected. elseif($status['status']['uploadStatus']=="rejected") { if(isset($new_video->file_name)) { # Get the Upload class. require_once MODULES.'Form'.DS.'Upload.php'; # Instantiate an Upload object. $upload=new Upload($video_path); # Delete video file from server. $upload->deleteFile($video_path); # Remove extention from filename. $name_no_ext=substr($new_video->file_name, 0, strrpos($new_video->file_name, '.')); # Delete the thumbnails from the server. $upload->deleteFile(IMAGES_PATH.'videos'.DS.'original'.DS.$name_no_ext.'.jpg'); $upload->deleteFile(IMAGES_PATH.'videos'.DS.$name_no_ext.'*.jpg', TRUE); # Delete rejected video from YouTube $delete_response=$yt->deleteVideo($video_yt_id); } # Need to delete the entry from the database as well. $db->query('DELETE FROM `'.DBPREFIX.'videos` WHERE `id` = '.$db->quote($new_video->id).' LIMIT 1'); # Check if the rejection status was a duplicate. if($status['status']['rejectionReason']=="duplicate") { # Tell the user the video was a duplicate. $body.='Your video was rejected because it was a duplicate video'; } } } } else { $body.='Your video was not found on YouTube'; $processed=TRUE; } # Update database if the video has been "processed". if($processed===TRUE) { # Get the PHPMailer class. require_once MODULES.'Email'.DS.'Email.php'; # Instantiate a new PHPMailer object. $mail=new Email(); $mail->sendEmail($subject, $to, $body, $reply_to); # Set new videos to old. $db->query('UPDATE `'.DBPREFIX.'videos` SET `new` = 0 WHERE `id` = '.$db->quote($new_video->id).' LIMIT 1'); } } }
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if you use the zend google api library, it’s pretty easy to get a playlist feed and catch any errors that google will return if it does not exist. The easiest solution is to get a list of all the playlists in your account and look through them to find out if the identifier of the playlist matches your identifier, and then go from there to get entries in the playlist. Thus, in fact, there will never be any errors or exceptions. But it makes several challenges that you tried to avoid. To make one call, you will need to have the URL of the playlist channel, then make one call and catch the exception. These are snippets of several features that I used when working with YouTube playlists.

Option 1:

 $this->api = new Zend_Gdata_YouTube(); $this->api->setMajorProtocolVersion(2); $feed = $this->api->retrieveAllEntriesForFeed($this->api->getPlaylistListFeed('default')); $playlistEntry = $this->__getPlaylistEntryFromFeed($feed, $playlistID); //do what you want with the playlist entry, like get the list of all the videos function __getPlaylistEntryFromFeed($feed, $entryId) { foreach($feed as $entry) { if($entry->getPlaylistId()->text == $entryId) { return $entry; } } }

Option 2:

 try { $playlistVideoFeed = $this->api->getPlaylistVideoFeed($playlistFeedUrl. '?v=2&start-index=1'); //this returns a list of videos in the playlist that you can loop through. see example function below. } catch (Zend_Gdata_App_Exception $e) { echo $e->getMessage(); } function getPlaylistVideos($playlistFeedUrl, $start=1, $total=0, $videos = array()) { $playlistVideoFeed = $this->api->getPlaylistVideoFeed($playlistFeedUrl. '?v=2&start-index='.$start); foreach ($playlistVideoFeed as $videoEntry) { $videos[] = $this->getDataFromVideoEntry($videoEntry); } $count = count($playlistVideoFeed); if(count($videos) < $total && $count != 0) { $videos = $this->getPlaylistvideos($playlistFeedUrl, $start + ($count-1), $total, $videos); } return $videos; }

To take these examples and use them with your code, you can try to look something like this:

 # Playlist ID from URL $playlist=$_GET['playlist']; # Assign the Playlist Items to a variable. $video_search; try { $video_search = $yt->PlaylistItems($playlist); } catch(Google_ServiceException $e) { //there was an error echo $e->getMessage(); }

Hope this helps.

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Source: https://habr.com/ru/post/1492169/

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