如何发布req.body嵌入式mongo文档数组？

const MongoClient = require('mongodb').MongoClient;
const url = 'mongodb://localhost:27017'; // MongoDB数据库的连接URL
const dbName = 'mydb'; // 数据库名称

app.post('/publish', (req, res) => {
  // 获取req.body中的数据
  const embeddedDocuments = req.body.embeddedDocuments;

  // 连接到MongoDB数据库
  MongoClient.connect(url, (err, client) => {
    if (err) {
      console.error('Failed to connect to MongoDB:', err);
      res.status(500).send('Failed to connect to MongoDB');
      return;
    }

    // 选择数据库
    const db = client.db(dbName);

    // 插入嵌入式Mongo文档数组到集合中
    db.collection('mycollection').insertMany(embeddedDocuments, (err, result) => {
      if (err) {
        console.error('Failed to insert embedded documents:', err);
        res.status(500).send('Failed to insert embedded documents');
        return;
      }

      console.log('Embedded documents inserted successfully');
      res.status(200).send('Embedded documents inserted successfully');
    });

    // 关闭数据库连接
    client.close();
  });
});