尝试获取用户 Youtube 频道时出现权限不足错误

Posted 2023-02-24

【中文标题】尝试获取用户 Youtube 频道时出现权限不足错误

【英文标题】：Insufficient permission error when trying to fetch user Youtube Channels

【发布时间】：2021-12-10 09:12:33

【问题描述】：

我已通过 Youtube 帐户进行身份验证，并成功获取了访问令牌。现在我希望使用以下代码获取用户的 Youtube 频道：

        async fetchYoutubeChannels() 
        let accessToken = ....;
        const authCredentials = accessToken;
        const oauth2Client = initOAuth2Client(); //Oauth2 Client initialized at the top with secret, redirect url and and client id
        oauth2Client.setCredentials(authCredentials);
        oauth2Client.on('tokens', async (tokens) => 
            if (tokens.refresh_token) 
           //Save new token
            
        );
        let service = google.youtube('v3');
        service.channels.list(
            auth: oauth2Client,
            part: 'snippet,contentDetails,statistics',
        , function (err, response) 
            if (err) 
                console.log('The Youtube API returned an error: ' + err);
                return;
            
            let channels = response.data;
            console.log(`Retrieved Channels = $JSON.stringify(channels, null, 2)`);
        );
    

但我得到的只是这个错误信息：

Youtube API 返回错误：错误：权限不足

我错过了什么？

任何想法将不胜感激。 谢谢。

【问题讨论】：

您在代码中遗漏了什么您要求的范围是什么？

【参考方案1】：

错误：权限不足

表示用户已授权您的应用程序，但未授予您访问此方法所需的权限。

我假设你正在关注quickstart nodejs，只是忽略了一些代码。

注意 get channel 方法如何传递作为授权的一部分创建的 auth 参数。您似乎正在尝试通过设置访问令牌来手动创建它。您应该让代码创建访问令牌，因为它将在适当的范围内创建。

var fs = require('fs');
var readline = require('readline');
var google = require('googleapis');
var OAuth2 = google.auth.OAuth2;

// If modifying these scopes, delete your previously saved credentials
// at ~/.credentials/youtube-nodejs-quickstart.json
var SCOPES = ['https://www.googleapis.com/auth/youtube.readonly'];
var TOKEN_DIR = (process.env.HOME || process.env.HOMEPATH ||
    process.env.USERPROFILE) + '/.credentials/';
var TOKEN_PATH = TOKEN_DIR + 'youtube-nodejs-quickstart.json';

// Load client secrets from a local file.
fs.readFile('client_secret.json', function processClientSecrets(err, content) 
  if (err) 
    console.log('Error loading client secret file: ' + err);
    return;
  
  // Authorize a client with the loaded credentials, then call the YouTube API.
  authorize(JSON.parse(content), getChannel);
);

/**
 * Create an OAuth2 client with the given credentials, and then execute the
 * given callback function.
 *
 * @param Object credentials The authorization client credentials.
 * @param function callback The callback to call with the authorized client.
 */
function authorize(credentials, callback) 
  var clientSecret = credentials.installed.client_secret;
  var clientId = credentials.installed.client_id;
  var redirectUrl = credentials.installed.redirect_uris[0];
  var oauth2Client = new OAuth2(clientId, clientSecret, redirectUrl);

  // Check if we have previously stored a token.
  fs.readFile(TOKEN_PATH, function(err, token) 
    if (err) 
      getNewToken(oauth2Client, callback);
     else 
      oauth2Client.credentials = JSON.parse(token);
      callback(oauth2Client);
    
  );


/**
 * Get and store new token after prompting for user authorization, and then
 * execute the given callback with the authorized OAuth2 client.
 *
 * @param google.auth.OAuth2 oauth2Client The OAuth2 client to get token for.
 * @param getEventsCallback callback The callback to call with the authorized
 *     client.
 */
function getNewToken(oauth2Client, callback) 
  var authUrl = oauth2Client.generateAuthUrl(
    access_type: 'offline',
    scope: SCOPES
  );
  console.log('Authorize this app by visiting this url: ', authUrl);
  var rl = readline.createInterface(
    input: process.stdin,
    output: process.stdout
  );
  rl.question('Enter the code from that page here: ', function(code) 
    rl.close();
    oauth2Client.getToken(code, function(err, token) 
      if (err) 
        console.log('Error while trying to retrieve access token', err);
        return;
      
      oauth2Client.credentials = token;
      storeToken(token);
      callback(oauth2Client);
    );
  );


/**
 * Store token to disk be used in later program executions.
 *
 * @param Object token The token to store to disk.
 */
function storeToken(token) 
  try 
    fs.mkdirSync(TOKEN_DIR);
   catch (err) 
    if (err.code != 'EEXIST') 
      throw err;
    
  
  fs.writeFile(TOKEN_PATH, JSON.stringify(token), (err) => 
    if (err) throw err;
    console.log('Token stored to ' + TOKEN_PATH);
  );


/**
 * Lists the names and IDs of up to 10 files.
 *
 * @param google.auth.OAuth2 auth An authorized OAuth2 client.
 */
function getChannel(auth) 
  var service = google.youtube('v3');
  service.channels.list(
    auth: auth,
    part: 'snippet,contentDetails,statistics',
    forUsername: 'GoogleDevelopers'
  , function(err, response) 
    if (err) 
      console.log('The API returned an error: ' + err);
      return;
    
    var channels = response.data.items;
    if (channels.length == 0) 
      console.log('No channel found.');
     else 
      console.log('This channel\'s ID is %s. Its title is \'%s\', and ' +
                  'it has %s views.',
                  channels[0].id,
                  channels[0].snippet.title,
                  channels[0].statistics.viewCount);
    
  );

来自 cmets

如何获取 youtube 帐户的用户名。是 oauth2 过程中检索到的用户显示名称吗？

youtube api 是基于频道而不是基于用户的。您可以访问用户频道。不是技术上用户自己activites 可能会给你一些关于用户授权你访问的频道的信息，但我还没有真正尝试过。

错误：未选择过滤器。预期之一：mySubscribers、id、categoryId、mine、managedByMe、forUsername

Channels: list 要求您发送过滤器。查看Filters (specify exactly one of the following parameters)部分

【讨论】：

天哪！！！非常感谢您的详尽解释。你完全正确！！事实上，在身份验证过程中，我实际上忘记选中复选框以允许应用程序管理 youtube 帐户，这就是原因。我最终重新验证并检查了这些框，那个阶段似乎被覆盖了。但是，我面临更多问题，即此错误No filter selected. Expected one of: mySubscribers, id, categoryId, mine, managedByMe, forUsername。如何获取 youtube 帐户的用户名。是 oauth2 过程中检索到的用户显示名称吗？

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