Youtube 数据 API 播放列表 |组 4

在上一篇文章中，我们讨论了如何列出所需播放列表的内容以及如何在播放列表中插入视频。现在，在本文中，我们将讨论如何更新所需播放列表中的视频以及如何删除视频。

因此，从更新视频开始，让我们快速讨论如何获取客户端 ID 和密钥。

1. 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。
2. 现在导航到开发人员仪表板并创建一个新项目。
3. 单击启用 API 选项。
4. 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。
   
5. 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 。
6. 单击启用选项以开始使用 API。
7. 在 APIs & Services 下的侧边栏中，选择Credentials 。
8. 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。
9. 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。
10. 选择其他应用程序类型，输入名称“YouTube Data API Myvideos”，然后单击“创建”按钮并单击“确定”。
11. 单击客户端 ID 右侧的下载按钮以下载 JSON 文件。
12. 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

更新视频的代码：此示例展示了如何更新添加到播放列表中的视频。 id(Playlist item Id)、snippet.resourceId 和snippet.playlistId 是必需的参数。在这里，我们正在更新上传视频的位置。早些时候，视频默认位于播放列表中的第一个位置。但是我们通过设置参数snippet.position 将位置更改为第二个，该参数从0 开始取值，其中0 表示第一个位置，1 表示第二个位置，依此类推。

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 playlist_item_update_position(client, properties, **kwargs):
    resource = build_resource(properties)
    kwargs = remove_empty_kwargs(**kwargs)
      
    response = client.playlistItems().update(
        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()
      
    playlist_item_update_position(client, 
        {'id': 'UExxQUpOSkM0dENZdHlWWWxSQUJrNU5URERpMnNmcWJxVi5CMEQ2Mjk5NTc3NDZFRUNB',
        'snippet.playlistId': 'PLqAJNJC4tCYtyVYlRABk5NTDDi2sfqbqV',
        'snippet.resourceId.kind': 'youtube# video',
        'snippet.resourceId.videoId': 'MhPgMbYkuHc',
        'snippet.position': '1'},
        part ='snippet',
        onBehalfOfContentOwner ='')

注意： id 是播放列表项目 ID，可以通过使用文章 Youtube Data API Playlist | 中讨论的代码列出所需播放列表的项目来记录。设置-3。记下 kind 标签后 etag属性后面的 id 属性为“youtube#playlistItem”。

输出：

当您执行代码时，系统会要求您提供授权代码。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。

如果您比较下面的两张图片，您会看到之前在位置 0（即第一个位置）的视频现在移动到了位置 1，即第二个位置。

删除播放列表项的代码：此示例显示如何删除播放列表项。属性 ID 是强制性属性。这标识需要删除的播放列表项。
成功完成由 HTTP 204 响应代码标记。

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 playlist_items_delete(client, **kwargs):
    # See full sample for function
    kwargs = remove_empty_kwargs(**kwargs)
      
    response = client.playlistItems().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()
      
    playlist_items_delete(client,
        id ='UExxQUpOSkM0dENZdHlWWWxSQUJrNU5URERpMnNmcWJxVi5CMEQ2Mjk5NTc3NDZFRUNB',
        onBehalfOfContentOwner ='')

输出：

当您执行代码时，系统会要求您提供授权代码。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。

从下面的两张图片中可以看出，我们添加到播放列表然后更新的视频现在已成功从播放列表中删除。

参考：

1. https://developers.google.com/youtube/v3/docs/playlistItems/delete
2. https://developers.google.com/youtube/v3/docs/playlistItems/insert
3. https://developers.google.com/youtube/v3/docs/playlistItems/update
4. https://developers.google.com/youtube/v3/docs/playlistItems/list
5. https://developers.google.com/youtube/v3/docs/playlistItems