Page Summary
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Google Apps Script can be used to update video details on a YouTube channel, such as the description.
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A channel bulletin can be posted using Google Apps Script, allowing for communication with subscribers.
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All video uploads for a channel can be retrieved and listed using Google Apps Script.
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Videos can be searched on YouTube by keyword or Freebase topic using Google Apps Script.
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Users can subscribe to a specific YouTube channel programmatically through Google Apps Script.
Update video's details
function updateYouTubeVideo () { // 1. Fetch all the channels owned by active user . var myChannels = YouTube . Channels . list ( 'contentDetails' , { mine : true }); // 2. Iterate through the channels and get the uploads playlist ID . for ( var i = 0 ; i < myChannels . items . length ; i ++ ) { var item = myChannels . items [ i ]; var uploadsPlaylistId = item . contentDetails . relatedPlaylists . uploads ; var playlistResponse = YouTube . PlaylistItems . list ( 'snippet' , { playlistId : uploadsPlaylistId , maxResults : 1 }); // Get the ID of the first video in the list . var video = playlistResponse . items [ 0 ]; var originalDescription = video . snippet . description ; var updatedDescription = originalDescription + ' Description updated via Google Apps Script' ; video . snippet . description = updatedDescription ; var resource = { snippet : { title : video . snippet . title , description : updatedDescription , categoryId : '22' }, id : video . snippet . resourceId . videoId }; YouTube . Videos . update ( resource , 'id,snippet' ); console . log ( 'Video with ID = %s and Title = %s was successfully updated.' , video . snippet . resourceId . videoId , video . snippet . title ); } }
Create a channel bulletin
function postChannelBulletin () { var message = 'Thanks for subscribing to my channel! This posting is ' + 'from Google Apps Script' ; var videoId = 'INSERT_VIDEO_ID_HERE' ; var resource = { snippet : { description : message }, contentDetails : { bulletin : { resourceId : { kind : 'youtube#video' , videoId : videoId } } } }; var response = YouTube . Activities . insert ( resource , 'snippet,contentDetails' ); console . log ( 'Posted to channel bulletin successfully.' ); }
Retrieve video uploads
function retrieveVideoUploads () { var results = YouTube . Channels . list ( 'contentDetails' , { mine : true }); for ( var i in results . items ) { var item = results . items [ i ]; // Get the playlist ID , which is nested in contentDetails , as described in // the Channel resource : // https : // developers . google . com / youtube / v3 / docs / channels var playlistId = item . contentDetails . relatedPlaylists . uploads ; var nextPageToken = '' ; // This loop retrieves a set of playlist items and checks the nextPageToken // in the response to determine whether the list contains additional items . // It repeats that process until it has retrieved all of the items in the // list . while ( nextPageToken != null ) { var playlistResponse = YouTube . PlaylistItems . list ( 'snippet' , { playlistId : playlistId , maxResults : 25 , pageToken : nextPageToken }); for ( var j = 0 ; j < playlistResponse . items . length ; j ++ ) { var playlistItem = playlistResponse . items [ j ]; console . log ( '[ %s ] Title: %s ' , playlistItem . snippet . resourceId . videoId , playlistItem . snippet . title ); } nextPageToken = playlistResponse . nextPageToken ; } } }
Search videos by keyword
function searchVideosByKeyword () { var results = YouTube . Search . list ( 'id,snippet' , { q : 'dogs' , maxResults : 25 } ); for ( var i in results . items ) { var item = results . items [ i ] ; console . log ( '[%s] Title: %s' , item . id . videoId , item . snippet . title ); } }
Search videos by topics
function searchVideosByFreebaseTopic () { // See https : // developers . google . com / youtube / v3 / guides / searching_by_topic // for more details . // Insert Your Freebase topic ID here . The Freebase ID used in this example // corresponds to the Freebase entry for Google . See // http : // www . freebase . com / m / 045 c7b for more details . var mid = '/m/045c7b' ; var results = YouTube . Search . list ( 'id,snippet' , { topicId : mid , maxResults : 25 } ); for ( var i in results . items ) { var item = results . items [ i ] ; console . log ( '[%s] Title: %s' , item . id . videoId , item . snippet . title ); } }
Subscribe to a channel
function subscribeToChannel () { // Replace this channel ID with the channel ID you want to subscribe to . var channelId = 'INSERT_YOUTUBE_CHANNEL_ID_HERE' ; var resource = { snippet : { resourceId : { kind : 'youtube#channel' , channelId : channelId } } }; try { var response = YouTube . Subscriptions . insert ( resource , 'snippet' ); console . log ( 'Subscribed to channel ID %s successfully.' , channelId ); } catch ( e ) { if ( e . message . match ( 'subscriptionDuplicate' )) { console . log ( 'Cannot subscribe; already subscribed to channel: ' + channelId ); } else { console . log ( 'Error adding subscription: ' + e . message ); } } }
