如何在node.js中查找名称是否在mongodb中？

npm install mongodb

const { MongoClient } = require('mongodb');

const uri = 'mongodb://localhost:27017'; // MongoDB连接字符串，根据实际情况修改
const client = new MongoClient(uri, { useUnifiedTopology: true });

async function connect() {
    try {
        await client.connect();
        console.log('Connected to MongoDB');
    } catch (err) {
        console.error('Failed to connect to MongoDB', err);
    }
}

connect();

async function findName(name) {
    try {
        const db = client.db('your-database'); // 数据库名称，根据实际情况修改
        const collection = db.collection('your-collection'); // 集合名称，根据实际情况修改

        const result = await collection.findOne({ name: name });

        if (result) {
            console.log(`Name '${name}' exists in MongoDB`);
        } else {
            console.log(`Name '${name}' does not exist in MongoDB`);
        }
    } catch (err) {
        console.error('Failed to find name in MongoDB', err);
    }
}

findName('John');