为啥 YouTube 数据 API 中存在缺失部分错误

Posted 2023-02-24

【中文标题】为啥 YouTube 数据 API 中存在缺失部分错误

【英文标题】：Why there's a missing part error in YouTube Data API为什么 YouTube 数据 API 中存在缺失部分错误

【发布时间】：2021-10-15 03:57:58

【问题描述】：

为什么 YouTube 数据 API 脚本中会出现此错误：

Traceback (most recent call last):
  File "C:\Path\YoutubeApi\main.py", line 54, in <module>
    main()
  File "C:\Path\YoutubeApi\main.py", line 40, in main
    request = youtube.videos().update(
  File "C:\Users\$user\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\googleapiclient\discovery.py", line 1012, in method
    raise TypeError('Missing required parameter "%s"' % name)
TypeError: Missing required parameter "part"

控制台中文件的总输出：

Loading Credentials From File...
Refreshing Access Token...
Traceback (most recent call last):
  File "C:\Path\YoutubeApi\main.py", line 54, in <module>
    main()
  File "C:\Path\YoutubeApi\main.py", line 40, in main
    request = youtube.videos().update(
  File "C:\Users\$user\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\googleapiclient\discovery.py", line 1012, in method
    raise TypeError('Missing required parameter "%s"' % name)
TypeError: Missing required parameter "part"

Main.py

import os
import pickle
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request
from googleapiclient.discovery import build

def main():
    # part 1 : store the user credentials
    credentials = None
    # token.pickle stores the user's credentials from previously successful logins
    if os.path.exists('token.pickle'):
        print('Loading Credentials From File...')
        with open('token.pickle', 'rb') as token:
            credentials = pickle.load(token)

    if not credentials or not credentials.valid:
        if credentials and credentials.expired and credentials.refresh_token:
            print('Refreshing Access Token...')
            credentials.refresh(Request())
        else:
            print('Fetching New Tokens...')
            flow = InstalledAppFlow.from_client_secrets_file(
                'client_secrets.json',
                scopes=[
                    'https://www.googleapis.com/auth/youtube.force-ssl'
                ]
            )
            #  part 2 : change the video title and run the server
            flow.run_local_server(port=8080, prompt='consent',
                                authorization_prompt_message='')
            credentials = flow.credentials

            # Save the credentials for the next run
            with open('token.pickle', 'wb') as f:
                print('Saving Credentials for Future Use...')
                pickle.dump(credentials, f)

    youtube = build('youtube','v3',credentials=credentials)

    request = youtube.videos().update(
        body=
            "id": "OSxK-tscmVA",
            "snippet":
                "title":"It's Changed!",
            
        
    )

    response = request.execute()

    print(response)

if __name__ == '__main__':
    main()

脚本说明：

脚本的作用是，如果没有名为 token.pickle 的文件，它将要求用户授权应用程序，并且脚本会将用户凭据存储在 token.pickle 文件中，这样用户就不必授权每次运行的应用程序和脚本的 part 2 都会更改我的 YouTube 视频的标题。

【参考方案1】：

答案很简单：根据Videos.update API 端点的官方规范，part 请求parameter is required。

因此，您对Videos.update 的调用应如下所示：

request = youtube.videos().update(
    part = "snippet",
    body = 
        "id": "OSxK-tscmVA",
        "snippet": 
            "title":"It's Changed!",
        
    
)

注意添加的行part = "snippet"。这就是端点抱怨的原因。

【讨论】：

您要求添加的 `part = "sn-p"' 给我带来了另一个错误。错误对于评论来说太长了。你可以找到它here

@Knight_Crawler：我在上面向您展示的修复是官方规范要求的。此代码更改修复了您的错误Missing required parameter "part"。即使我在Videos.list 的官方规范上方链接，您似乎也不倾向于使用它：您调用端点的request body 也需要指定视频类别ID才能被接受通过 API 后端。

@Knight_Crawler：请注意，来自 Google 的 update_video.py 示例代码包含所有这些内容。我从一开始就警告您，您必须吸收（即理解）该代码。除了仔细阅读官方文档，别无他法。