我注意到，Google Analytics Admin和Google Analytics Data的所有node.js代码示例都假定一个服务帐户和一个JSON文件或GOOGLE_APPLICATION_CREDENTIALS环境变量。
例如：

const analyticsAdmin = require('@google-analytics/admin');

async function main() {
  // Instantiates a client using default credentials.
  // TODO(developer): uncomment and use the following line in order to
  //  manually set the path to the service account JSON file instead of
  //  using the value from the GOOGLE_APPLICATION_CREDENTIALS environment
  //  variable.
  // const analyticsAdminClient = new analyticsAdmin.AnalyticsAdminServiceClient(
  //     {keyFilename: "your_key_json_file_path"});
  const analyticsAdminClient = new analyticsAdmin.AnalyticsAdminServiceClient();

  const [accounts] = await analyticsAdminClient.listAccounts();

  console.log('Accounts:');
  accounts.forEach(account => {
    console.log(account);
  });
}

我正在构建一个允许用户使用自己的帐户访问自己的数据的服务，因此使用服务帐户是不合适的。
我最初认为我可能能够使用google-api-node-client-- Auth将通过构建一个URL来重定向和执行oauth舞蹈来处理...

使用google-api-nodejs-client：

const {google} = require('googleapis');

const oauth2Client = new google.auth.OAuth2(
  YOUR_CLIENT_ID,
  YOUR_CLIENT_SECRET,
  YOUR_REDIRECT_URL
);

// generate a url that asks permissions for Google Analytics scopes
const scopes = [
        "https://www.googleapis.com/auth/analytics",          // View and manage your Google Analytics data
        "https://www.googleapis.com/auth/analytics.readonly", // View your Google Analytics data
];

const url = oauth2Client.generateAuthUrl({
  access_type: 'offline',
  scope: scopes
});

// redirect to `url` in a popup for the oauth dance

auth之后，Google重定向到GET /oauthcallback?code={authorizationCode}，因此我们收集代码并获取令牌以执行后续启用OAuth2的调用：

// This will provide an object with the access_token and refresh_token.
// Save these somewhere safe so they can be used at a later time.
const {tokens} = await oauth2Client.getToken(code)
oauth2Client.setCredentials(tokens);
// of course we need to handle the refresh token too

这一切工作正常，但是是否可以将OAuth2客户机从google-api-node-client代码插入到google-analytics-admin代码中？
👉看起来我需要用我已经检索到的访问令牌调用analyticsAdmin.AnalyticsAdminServiceClient()-但如何调用呢？