免费网站数据库

// 安装MongoDB驱动
const { MongoClient } = require('mongodb');

// 连接到MongoDB免费版实例
const uri = 'mongodb://username:password@free-mongodb-host:port/database';
const client = new MongoClient(uri, { useNewUrlParser: true, useUnifiedTopology: true });

async function run() {
  try {
    await client.connect();
    console.log('Connected to MongoDB');

    const database = client.db('mydatabase');
    const collection = database.collection('mycollection');

    // 插入数据
    const result = await collection.insertOne({ name: 'John Doe', age: 30 });
    console.log('Inserted document:', result);

    // 查询数据
    const query = { name: 'John Doe' };
    const document = await collection.findOne(query);
    console.log('Found document:', document);
  } finally {
    await client.close();
  }
}

run().catch(console.dir);