在之前的文章 Youtube Data API 订阅 | Set 1, Set 2 我们已经讨论过三种方法——
- 检索与频道 ID 关联的订阅列表
- 检索我的订阅，即与授权用户的帐户相关联
- 检查订阅是否存在。
在本文中，我们将讨论以下两种方法 –
- 插入订阅
- 删除订阅
在继续之前，我们将首先讨论如何生成OAuth凭证。按照以下步骤生成客户端 ID 和密钥。
- 转到 Google Google Developers Console，然后单击页面右上角的登录。使用有效 Google 帐户的凭据登录。如果您没有 google 帐户，请先设置一个帐户，然后使用详细信息在 Google Developers 主页上登录。
- 现在导航到开发人员仪表板并创建一个新项目。
- 单击启用 API 选项。
- 在搜索字段中，搜索Youtube Data API并选择下拉列表中的 Youtube Data API 选项。
- 您将被重定向到显示有关 Youtube Data API 信息的屏幕，以及两个选项： ENABLE 和 TRY API 。
- 单击启用选项以开始使用 API。
- 在 APIs & Services 下的侧边栏中，选择Credentials 。
- 在页面顶部，选择OAuth 同意屏幕选项卡。选择一个电子邮件地址，如果尚未设置，请输入产品名称，然后单击保存按钮。
- 在凭据选项卡中，选择创建凭据下拉列表，然后选择OAuth 客户端 ID 。 OAuth 通常用于需要授权的情况，例如检索用户喜欢的视频。
- 选择其他应用程序类型，输入名称“YouTube Data API Myvideos”，然后单击“创建”按钮，然后单击“确定”。
- 单击客户端 ID 右侧的下载按钮以下载 JSON 文件。
- 将文件保存并重命名为
client_secret.json并将其移动到工作目录。
使用 pip命令安装其他库：
pip install –upgrade google-auth google-auth-oauthlib google-auth-httplib2
注意：我们需要知道插入和删除订阅的频道 ID。请按照以下步骤查找频道 ID：
- 登录您的 YouTube 帐户。
- 浏览您要订阅的频道。
- 单击并打开频道。在 URL 中，您将在关键字channel/ 之后看到频道 ID
插入订阅的代码：此示例说明如何在由参数列表中提供的频道 ID 标识的 Youtube 频道中插入订阅。您可以通过更改snippet.resourceId.channelId属性来更改订阅。此示例添加对 Derek Banas 频道的订阅。
import os
import google.oauth2.credentials
import google_auth_oauthlib.flow
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError
from google_auth_oauthlib.flow import InstalledAppFlow
# The CLIENT_SECRETS_FILE variable specifies
# the name of a file that contains
# client_id and client_secret.
CLIENT_SECRETS_FILE = "client_secret.json"
# This scope allows for full read/write access
# to the authenticated user's account and
# requires requests to use an SSL connection.
SCOPES = ['https://www.googleapis.com/auth/youtube.force-ssl']
API_SERVICE_NAME = 'youtube'
API_VERSION = 'v3'
def get_authenticated_service():
flow = InstalledAppFlow.from_client_secrets_file(CLIENT_SECRETS_FILE, SCOPES)
credentials = flow.run_console()
return build(API_SERVICE_NAME, API_VERSION, credentials = credentials)
def print_response(response):
print(response)
# Build a resource based on a list of
# properties given as key-value pairs.
# Leave properties with empty values out
# of the inserted resource.
def build_resource(properties):
resource = {}
for p in properties:
# Given a key like "snippet.title", split into
# "snippet" and "title", where "snippet" will be
# an object and "title" will be a property in that object.
prop_array = p.split('.')
ref = resource
for pa in range(0, len(prop_array)):
is_array = False
key = prop_array[pa]
# For properties that have array values, convert a name like
# "snippet.tags[]" to snippet.tags, and set a flag to handle
# the value as an array.
if key[-2:] == '[]':
key = key[0:len(key)-2:]
is_array = True
if pa == (len(prop_array) - 1):
# Leave properties without values
# out of inserted resource.
if properties[p]:
if is_array:
ref[key] = properties[p].split(', ')
else:
ref[key] = properties[p]
elif key not in ref:
# For example, the property is "snippet.title",
# but the resource does not yet have a "snippet"
# object. Create the snippet object here.
# Setting "ref = ref[key]" means that in the
# next time through the "for pa in range ..." loop,
# we will be setting a property in the
# resource's "snippet" object.
ref[key] = {}
ref = ref[key]
else:
# For example, the property is "snippet.description",
# and the resource already has a "snippet" object.
ref = ref[key]
return resource
# Remove keyword arguments that are not set
def remove_empty_kwargs(**kwargs):
good_kwargs = {}
if kwargs is not None:
for key, value in kwargs.items():
if value:
good_kwargs[key] = value
return good_kwargs
def subscriptions_insert(client, properties, **kwargs):
resource = build_resource(properties)
kwargs = remove_empty_kwargs(**kwargs)
response = client.subscriptions().insert(
body = resource,**kwargs).execute()
return print_response(response)
if __name__ == '__main__':
# When running locally, disable OAuthlib's
# HTTPs verification. When running in production
# * do not * leave this option enabled.
os.environ['OAUTHLIB_INSECURE_TRANSPORT'] = '1'
client = get_authenticated_service()
subscriptions_insert(client,
{'snippet.resourceId.kind': 'youtube# channel',
'snippet.resourceId.channelId': 'UCwRXb5dUK4cvsHbx-rGzSgw'},
part ='snippet')
输出：
在执行代码时，您将被要求提供授权代码。要获取代码，您需要按照以下行上方的命令提示符屏幕中提到的链接进行操作：输入授权代码。 
现在点击链接并复制粘贴您将通过授予权限获得的授权代码。 
如果您看到，从上面的输出中可以清楚地看出我已成功订阅该频道。
删除订阅的代码：此示例说明如何删除订阅。 id参数是订阅 ID，即您可以在插入订阅时从命令提示符记下，或者您可以运行代码以列出所有订阅并记下所需订阅的订阅 ID。在这个例子中，我删除了我在上面讨论的代码中添加的订阅。
import os
import google.oauth2.credentials
import google_auth_oauthlib.flow
from googleapiclient.discovery import build
from googleapiclient.errors import HttpError
from google_auth_oauthlib.flow import InstalledAppFlow
# The CLIENT_SECRETS_FILE variable specifies
# the name of a file that contains client_id
# and client_secret.
CLIENT_SECRETS_FILE = "client_secret.json"
# This scope allows for full read/write access
# to the authenticated user's account and
# requires requests to use an SSL connection.
SCOPES = ['https://www.googleapis.com/auth/youtube.force-ssl']
API_SERVICE_NAME = 'youtube'
API_VERSION = 'v3'
def get_authenticated_service():
flow = InstalledAppFlow.from_client_secrets_file(CLIENT_SECRETS_FILE, SCOPES)
credentials = flow.run_console()
return build(API_SERVICE_NAME, API_VERSION, credentials = credentials)
def print_response(response):
print(response)
# Build a resource based on a list of properties
# given as key-value pairs. Leave properties with
# empty values out of the inserted resource.
def build_resource(properties):
resource = {}
for p in properties:
# Given a key like "snippet.title", split into
# "snippet" and "title", where "snippet" will be
# an object and "title" will be a property in that object.
prop_array = p.split('.')
ref = resource
for pa in range(0, len(prop_array)):
is_array = False
key = prop_array[pa]
# For properties that have array values, convert a name like
# "snippet.tags[]" to snippet.tags, and set a flag to handle
# the value as an array.
if key[-2:] == '[]':
key = key[0:len(key)-2:]
is_array = True
if pa == (len(prop_array) - 1):
# Leave properties without values out of inserted resource.
if properties[p]:
if is_array:
ref[key] = properties[p].split(', ')
else:
ref[key] = properties[p]
elif key not in ref:
# For example, the property is "snippet.title",
# but the resource does not yet have a "snippet"
# object. Create the snippet object here.
# Setting "ref = ref[key]" means that in the
# next time through the "for pa in range ..." loop,
# we will be setting a property in the
# resource's "snippet" object.
ref[key] = {}
ref = ref[key]
else:
# For example, the property is "snippet.description",
# and the resource already has a "snippet" object.
ref = ref[key]
return resource
# Remove keyword arguments that are not set
def remove_empty_kwargs(**kwargs):
good_kwargs = {}
if kwargs is not None:
for key, value in kwargs.items():
if value:
good_kwargs[key] = value
return good_kwargs
def subscriptions_delete(client, **kwargs):
kwargs = remove_empty_kwargs(**kwargs)
response = client.subscriptions().delete(**kwargs).execute()
return print_response(response)
if __name__ == '__main__':
# When running locally, disable OAuthlib's HTTPs
# verification. When running in production
# * do not * leave this option enabled.
os.environ['OAUTHLIB_INSECURE_TRANSPORT'] = '1'
client = get_authenticated_service()
subscriptions_delete(client,
id ='AP1TRjqBsvvxCyjQuHtwgyzj5rqdRr1YQFrBIp0pPvU')
输出：
在执行代码时，您将被要求提供授权代码。要获取代码，您需要按照以下行上方的命令提示符屏幕中提到的链接进行操作：输入授权代码。 
现在点击链接并复制粘贴您将通过授予权限获得的授权代码。 
您可以从上面的输出中看到，频道再次显示订阅选项。
参考：
- https://developers.google.com/youtube/v3/docs/subscriptions
- https://developers.google.com/youtube/v3/docs/