Exemples de code Ruby

Les exemples de code suivants, qui utilisent la bibliothèque cliente des API Google pour Ruby, sont disponibles pour YouTube Data API. Vous pouvez télécharger ces exemples de code à partir du dossier ruby du dépôt d'exemples de code des API YouTube sur GitHub.

Ajouter un abonnement à une chaîne

Cet exemple appelle la méthode subscriptions.insert de l'API pour ajouter un abonnement à un canal spécifique.

#!/usr/bin/ruby  require 'rubygems' gem 'google-api-client', '>0.7' require 'google/api_client' require 'google/api_client/client_secrets' require 'google/api_client/auth/file_storage' require 'google/api_client/auth/installed_app' require 'trollop'  # This OAuth 2.0 access scope allows for full read/write access to the # authenticated user's account. YOUTUBE_SCOPE = 'https://www.googleapis.com/auth/youtube' YOUTUBE_API_SERVICE_NAME = 'youtube' YOUTUBE_API_VERSION = 'v3'  def get_authenticated_service   client = Google::APIClient.new(     :application_name => $PROGRAM_NAME,     :application_version => '1.0.0'   )   youtube = client.discovered_api(YOUTUBE_API_SERVICE_NAME, YOUTUBE_API_VERSION)    file_storage = Google::APIClient::FileStorage.new("#{$PROGRAM_NAME}-oauth2.json")   if file_storage.authorization.nil?     client_secrets = Google::APIClient::ClientSecrets.load     flow = Google::APIClient::InstalledAppFlow.new(       :client_id => client_secrets.client_id,       :client_secret => client_secrets.client_secret,       :scope => [YOUTUBE_SCOPE]     )     client.authorization = flow.authorize(file_storage)   else     client.authorization = file_storage.authorization   end    return client, youtube end  def main   opts = Trollop::options do     opt :channel_id, 'ID of the channel to subscribe to.', :type => String,           :default => 'UCtVd0c0tGXuTSbU5d8cSBUg'   end    client, youtube = get_authenticated_service    begin     body = {       :snippet => {         :resourceId => {           :channelId => opts[:channel_id]         }       }     }      # Call the API's youtube.subscriptions.insert method to add the subscription     # to the specified channel.     subscriptions_response = client.execute!(       :api_method => youtube.subscriptions.insert,       :parameters => {         :part => body.keys.join(',')       },       :body_object => body     )      puts "A subscription to '#{subscriptions_response.data.snippet.title}' was added."   rescue Google::APIClient::TransmissionError => e     puts e.result.body   end end  main 

Autoriser une requête

L'exemple de code suivant effectue une autorisation OAuth 2.0 en vérifiant la présence d'un réseau local contenant les identifiants d'autorisation. Si le fichier est absent, le script ouvre un navigateur et attend pour obtenir une réponse, puis enregistre localement les identifiants renvoyés.

require 'google/api_client' require 'google/api_client/client_secrets' require 'json' require 'launchy' require 'thin'  RESPONSE_HTML = <<stop <html>   <head>     <title>OAuth 2 Flow Complete</title>   </head>   <body>     You have successfully completed the OAuth 2 flow. Please close this browser window and return to your program.   </body> </html> stop  FILE_POSTFIX = '-oauth2.json'  # Small helper for the sample apps for performing OAuth 2.0 flows from the command # line. Starts an embedded server to handle redirects. class CommandLineOAuthHelper    def initialize(scope)     credentials = Google::APIClient::ClientSecrets.load     @authorization = Signet::OAuth2::Client.new(       :authorization_uri => credentials.authorization_uri,       :token_credential_uri => credentials.token_credential_uri,       :client_id => credentials.client_id,       :client_secret => credentials.client_secret,       :redirect_uri => credentials.redirect_uris.first,       :scope => scope     )   end    # Request authorization. Checks to see if a local file with credentials is present, and uses that.   # Otherwise, opens a browser and waits for response, then saves the credentials locally.   def authorize     credentialsFile = $0 + FILE_POSTFIX      if File.exist? credentialsFile       File.open(credentialsFile, 'r') do |file|         credentials = JSON.load(file)         @authorization.access_token = credentials['access_token']         @authorization.client_id = credentials['client_id']         @authorization.client_secret = credentials['client_secret']         @authorization.refresh_token = credentials['refresh_token']         @authorization.expires_in = (Time.parse(credentials['token_expiry']) - Time.now).ceil         if @authorization.expired?           @authorization.fetch_access_token!           save(credentialsFile)         end       end     else       auth = @authorization       url = @authorization.authorization_uri().to_s       server = Thin::Server.new('0.0.0.0', 8080) do         run lambda { |env|           # Exchange the auth code & quit           req = Rack::Request.new(env)           auth.code = req['code']           auth.fetch_access_token!           server.stop()           [200, {'Content-Type' => 'text/html'}, RESPONSE_HTML]         }       end        Launchy.open(url)       server.start()        save(credentialsFile)     end      return @authorization   end    def save(credentialsFile)     File.open(credentialsFile, 'w', 0600) do |file|       json = JSON.dump({         :access_token => @authorization.access_token,         :client_id => @authorization.client_id,         :client_secret => @authorization.client_secret,         :refresh_token => @authorization.refresh_token,         :token_expiry => @authorization.expires_at       })       file.write(json)     end   end end 

Récupérer mes importations

Cet exemple appelle la méthode playlistItems.list de l'API pour récupérer la liste des vidéos mises en ligne. à la chaîne associée à la demande. Le code appelle également la méthode channels.list avec Paramètre mine défini sur true pour récupérer l'ID de la playlist qui identifie les chaînes de la chaîne les vidéos que vous avez mises en ligne.

#!/usr/bin/ruby  require 'rubygems' gem 'google-api-client', '>0.7' require 'google/api_client' require 'google/api_client/client_secrets' require 'google/api_client/auth/file_storage' require 'google/api_client/auth/installed_app'  # This OAuth 2.0 access scope allows for read-only access to the authenticated # user's account, but not other types of account access. YOUTUBE_READONLY_SCOPE = 'https://www.googleapis.com/auth/youtube.readonly' YOUTUBE_API_SERVICE_NAME = 'youtube' YOUTUBE_API_VERSION = 'v3'  def get_authenticated_service   client = Google::APIClient.new(     :application_name => $PROGRAM_NAME,     :application_version => '1.0.0'   )   youtube = client.discovered_api(YOUTUBE_API_SERVICE_NAME, YOUTUBE_API_VERSION)    file_storage = Google::APIClient::FileStorage.new("#{$PROGRAM_NAME}-oauth2.json")   if file_storage.authorization.nil?     client_secrets = Google::APIClient::ClientSecrets.load     flow = Google::APIClient::InstalledAppFlow.new(       :client_id => client_secrets.client_id,       :client_secret => client_secrets.client_secret,       :scope => [YOUTUBE_READONLY_SCOPE]     )     client.authorization = flow.authorize(file_storage)   else     client.authorization = file_storage.authorization   end    return client, youtube end  def main   client, youtube = get_authenticated_service    begin     # Retrieve the "contentDetails" part of the channel resource for the     # authenticated user's channel.     channels_response = client.execute!(       :api_method => youtube.channels.list,       :parameters => {         :mine => true,         :part => 'contentDetails'       }     )      channels_response.data.items.each do |channel|       # From the API response, extract the playlist ID that identifies the list       # of videos uploaded to the authenticated user's channel.       uploads_list_id = channel['contentDetails']['relatedPlaylists']['uploads']        # Retrieve the list of videos uploaded to the authenticated user's channel.       next_page_token = ''       until next_page_token.nil?         playlistitems_response = client.execute!(           :api_method => youtube.playlist_items.list,           :parameters => {             :playlistId => uploads_list_id,             :part => 'snippet',             :maxResults => 50,             :pageToken => next_page_token           }         )          puts "Videos in list #{uploads_list_id}"          # Print information about each video.         playlistitems_response.data.items.each do |playlist_item|           title = playlist_item['snippet']['title']           video_id = playlist_item['snippet']['resourceId']['videoId']            puts "#{title} (#{video_id})"         end          next_page_token = playlistitems_response.next_page_token       end        puts     end   rescue Google::APIClient::TransmissionError => e     puts e.result.body   end end  main 

Recherche par mot clé

Cet exemple appelle la méthode search.list de l'API pour récupérer les résultats de recherche associée à un mot clé particulier.

#!/usr/bin/ruby  require 'rubygems' gem 'google-api-client', '>0.7' require 'google/api_client' require 'trollop'  # Set DEVELOPER_KEY to the API key value from the APIs & auth > Credentials # tab of # {{ Google Cloud Console }} <{{ https://cloud.google.com/console }}> # Please ensure that you have enabled the YouTube Data API for your project. DEVELOPER_KEY = 'REPLACE_ME' YOUTUBE_API_SERVICE_NAME = 'youtube' YOUTUBE_API_VERSION = 'v3'  def get_service   client = Google::APIClient.new(     :key => DEVELOPER_KEY,     :authorization => nil,     :application_name => $PROGRAM_NAME,     :application_version => '1.0.0'   )   youtube = client.discovered_api(YOUTUBE_API_SERVICE_NAME, YOUTUBE_API_VERSION)    return client, youtube end  def main   opts = Trollop::options do     opt :q, 'Search term', :type => String, :default => 'Google'     opt :max_results, 'Max results', :type => :int, :default => 25   end    client, youtube = get_service    begin     # Call the search.list method to retrieve results matching the specified     # query term.     search_response = client.execute!(       :api_method => youtube.search.list,       :parameters => {         :part => 'snippet',         :q => opts[:q],         :maxResults => opts[:max_results]       }     )      videos = []     channels = []     playlists = []      # Add each result to the appropriate list, and then display the lists of     # matching videos, channels, and playlists.     search_response.data.items.each do |search_result|       case search_result.id.kind         when 'youtube#video'           videos << "#{search_result.snippet.title} (#{search_result.id.videoId})"         when 'youtube#channel'           channels << "#{search_result.snippet.title} (#{search_result.id.channelId})"         when 'youtube#playlist'           playlists << "#{search_result.snippet.title} (#{search_result.id.playlistId})"       end     end      puts "Videos:\n", videos, "\n"     puts "Channels:\n", channels, "\n"     puts "Playlists:\n", playlists, "\n"   rescue Google::APIClient::TransmissionError => e     puts e.result.body   end end  main 

Mettre en ligne une vidéo

Cet exemple appelle la méthode videos.insert de l'API pour mettre en ligne une vidéo sur la chaîne. associées à la demande.

#!/usr/bin/ruby  require 'rubygems' gem 'google-api-client', '>0.7' require 'google/api_client' require 'google/api_client/client_secrets' require 'google/api_client/auth/file_storage' require 'google/api_client/auth/installed_app' require 'trollop'  # A limited OAuth 2 access scope that allows for uploading files, but not other # types of account access. YOUTUBE_UPLOAD_SCOPE = 'https://www.googleapis.com/auth/youtube.upload' YOUTUBE_API_SERVICE_NAME = 'youtube' YOUTUBE_API_VERSION = 'v3'  def get_authenticated_service   client = Google::APIClient.new(     :application_name => $PROGRAM_NAME,     :application_version => '1.0.0'   )   youtube = client.discovered_api(YOUTUBE_API_SERVICE_NAME, YOUTUBE_API_VERSION)    file_storage = Google::APIClient::FileStorage.new("#{$PROGRAM_NAME}-oauth2.json")   if file_storage.authorization.nil?     client_secrets = Google::APIClient::ClientSecrets.load     flow = Google::APIClient::InstalledAppFlow.new(       :client_id => client_secrets.client_id,       :client_secret => client_secrets.client_secret,       :scope => [YOUTUBE_UPLOAD_SCOPE]     )     client.authorization = flow.authorize(file_storage)   else     client.authorization = file_storage.authorization   end    return client, youtube end  def main   opts = Trollop::options do     opt :file, 'Video file to upload', :type => String     opt :title, 'Video title', :default => 'Test Title', :type => String     opt :description, 'Video description',           :default => 'Test Description', :type => String     opt :category_id, 'Numeric video category. See https://developers.google.com/youtube/v3/docs/videoCategories/list',           :default => 22, :type => :int     opt :keywords, 'Video keywords, comma-separated',           :default => '', :type => String     opt :privacy_status, 'Video privacy status: public, private, or unlisted',           :default => 'public', :type => String   end    if opts[:file].nil? or not File.file?(opts[:file])     Trollop::die :file, 'does not exist'   end    client, youtube = get_authenticated_service    begin     body = {       :snippet => {         :title => opts[:title],         :description => opts[:description],         :tags => opts[:keywords].split(','),         :categoryId => opts[:category_id],       },       :status => {         :privacyStatus => opts[:privacy_status]       }     }      videos_insert_response = client.execute!(       :api_method => youtube.videos.insert,       :body_object => body,       :media => Google::APIClient::UploadIO.new(opts[:file], 'video/*'),       :parameters => {         :uploadType => 'resumable',         :part => body.keys.join(',')       }     )      videos_insert_response.resumable_upload.send_all(client)      puts "Video id '#{videos_insert_response.data.id}' was successfully uploaded."   rescue Google::APIClient::TransmissionError => e     puts e.result.body   end end  main