Poniższe przykłady kodu, które korzystają z biblioteki klienta interfejsów API Google dla Ruby, są dostępne w YouTube Analytics API. Możesz pobrać te fragmenty kodu z folderu ruby w repozytorium kodu interfejsu API YouTube na GitHubie.
Autoryzowanie żądania
Poniższy przykładowy kod wykonuje autoryzację OAuth 2.0, sprawdzając, czy istnieje lokalny plik zawierający dane uwierzytelniające. Jeśli pliku nie ma, skrypt uruchamia przeglądarkę i czeka na odpowiedź, a następnie lokalnie zapisuje dane logowania.
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
Pobieranie 10 najpopularniejszych filmów według liczby wyświetleń
W tym przykładzie wywołujemy metodę reports.query interfejsu API, która pozwala pobrać dane ze Statystyk YouTube.
Domyślnie raport pobiera 10 najpopularniejszych filmów na podstawie liczby wyświetleń, a następnie zwraca dla nich kilka danych, sortując wyniki w odwrotnej kolejności od liczby wyświetleń. Po ustawieniu parametrów wiersza poleceń możesz używać tego samego kodu do pobierania innych raportów.
#!/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'
# These OAuth 2.0 access scopes allow for read-only access to the authenticated
# user's account for both YouTube Data API resources and YouTube Analytics Data.
YOUTUBE_SCOPES = ['https://www.googleapis.com/auth/youtube.readonly',
'https://www.googleapis.com/auth/yt-analytics.readonly']
YOUTUBE_API_SERVICE_NAME = 'youtube'
YOUTUBE_API_VERSION = 'v3'
YOUTUBE_ANALYTICS_API_SERVICE_NAME = 'youtubeAnalytics'
YOUTUBE_ANALYTICS_API_VERSION = 'v1'
def get_authenticated_services
client = Google::APIClient.new(
:application_name => $PROGRAM_NAME,
:application_version => '1.0.0'
)
youtube = client.discovered_api(YOUTUBE_API_SERVICE_NAME, YOUTUBE_API_VERSION)
youtube_analytics = client.discovered_api(YOUTUBE_ANALYTICS_API_SERVICE_NAME, YOUTUBE_ANALYTICS_API_VERSION)
file_storage = Google::APIClient::FileStorage.new("#{$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_SCOPES
)
client.authorization = flow.authorize(file_storage)
else
client.authorization = file_storage.authorization
end
return client, youtube, youtube_analytics
end
def main
now = Time.new.to_i
seconds_in_day = 60 * 60 * 24
seconds_in_week = seconds_in_day * 7
one_day_ago = Time.at(now - seconds_in_day).strftime('%Y-%m-%d')
one_week_ago = Time.at(now - seconds_in_week).strftime('%Y-%m-%d')
opts = Trollop::options do
opt :metrics, 'Report metrics', :type => String, :default => 'views,comments,favoritesAdded,favoritesRemoved,likes,dislikes,shares'
opt :dimensions, 'Report dimensions', :type => String, :default => 'video'
opt 'start-date', 'Start date, in YYYY-MM-DD format', :type => String, :default => one_week_ago
opt 'end-date', 'Start date, in YYYY-MM-DD format', :type => String, :default => one_day_ago
opt 'start-index', 'Start index', :type => :int, :default => 1
opt 'max-results', 'Max results', :type => :int, :default => 10
opt :sort, 'Sort order', :type => String, :default => '-views'
end
client, youtube, youtube_analytics = get_authenticated_services
begin
# Retrieve the channel resource for the authenticated user's channel.
channels_response = client.execute!(
:api_method => youtube.channels.list,
:parameters => {
:mine => true,
:part => 'id'
}
)
channels_response.data.items.each do |channel|
opts[:ids] = "channel==#{channel.id}"
# Call the Analytics API to retrieve a report. For a list of available
# reports, see:
# https://developers.google.com/youtube/analytics/v1/channel_reports
analytics_response = client.execute!(
:api_method => youtube_analytics.reports.query,
:parameters => opts
)
puts "Analytics Data for Channel #{channel.id}"
analytics_response.data.columnHeaders.each do |column_header|
printf '%-20s', column_header.name
end
puts
analytics_response.data.rows.each do |row|
row.each do |value|
printf '%-20s', value
end
puts
end
end
rescue Google::APIClient::TransmissionError => e
puts e.result.body
end
end
main