YouTube Service

/**
 * Searches for videos about dogs, then logs the video IDs and title.
 * Note that this sample limits the results to 25. To return more
 * results, pass additional parameters as shown in the YouTube Data API docs.
 * @see https://developers.google.com/youtube/v3/docs/search/list
 */
functionsearchByKeyword(){
try{
constresults=YouTube.Search.list('id,snippet',{
q:'dogs',
maxResults:25
});
if(results===null){
console.log('Unable to search videos');
return;
}
results.items.forEach((item)=>{
console.log('[%s] Title: %s',item.id.videoId,item.snippet.title);
});
}catch(err){
// TODO (developer) - Handle exceptions from Youtube API
console.log('Failed with an error %s',err.message);
}
}

/**
 * This function retrieves the user's uploaded videos by:
 * 1. Fetching the user's channel's.
 * 2. Fetching the user's "uploads" playlist.
 * 3. Iterating through this playlist and logs the video IDs and titles.
 * 4. If there is a next page of resuts, fetching it and returns to step 3.
 */
functionretrieveMyUploads(){
try{
// @see https://developers.google.com/youtube/v3/docs/channels/list
constresults=YouTube.Channels.list('contentDetails',{
mine:true
});
if(!results||results.items.length===0){
console.log('No Channels found.');
return;
}
for(leti=0;i < results.items.length;i++){
constitem=results.items[i];
/** Get the channel ID - it's nested in contentDetails, as described in the
 * Channel resource: https://developers.google.com/youtube/v3/docs/channels.
 */
constplaylistId=item.contentDetails.relatedPlaylists.uploads;
letnextPageToken=null;
do{
// @see: https://developers.google.com/youtube/v3/docs/playlistItems/list
constplaylistResponse=YouTube.PlaylistItems.list('snippet',{
playlistId:playlistId,
maxResults:25,
pageToken:nextPageToken
});
if(!playlistResponse||playlistResponse.items.length===0){
console.log('No Playlist found.');
break;
}
for(letj=0;j < playlistResponse.items.length;j++){
constplaylistItem=playlistResponse.items[j];
console.log('[%s] Title: %s',
playlistItem.snippet.resourceId.videoId,
playlistItem.snippet.title);
}
nextPageToken=playlistResponse.nextPageToken;
}while(nextPageToken);
}
}catch(err){
// TODO (developer) - Handle exception
console.log('Failed with err %s',err.message);
}
}

/**
 * This sample subscribes the user to the Google Developers channel on YouTube.
 * @see https://developers.google.com/youtube/v3/docs/subscriptions/insert
 */
functionaddSubscription(){
// Replace this channel ID with the channel ID you want to subscribe to
constchannelId='UC_x5XG1OV2P6uZZ5FSM9Ttw';
constresource={
snippet:{
resourceId:{
kind:'youtube#channel',
channelId:channelId
}
}
};
try{
constresponse=YouTube.Subscriptions.insert(resource,'snippet');
console.log('Added subscription for channel title : %s',response.snippet.title);
}catch(e){
if(e.message.match('subscriptionDuplicate')){
console.log('Cannot subscribe; already subscribed to channel: '+
channelId);
}else{
// TODO (developer) - Handle exception
console.log('Error adding subscription: '+e.message);
}
}
}