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Node.js 驱动程序

快速参考

本页显示了若干 MongoDB 命令的驱动程序语法,以及指向相关引用和 API 文档的链接。

您可以使用 Node.js 驱动程序连接到以下环境中托管的部署并对其执行命令:

  • MongoDB Atlas :用于在云中部署 MongoDB 的完全托管服务

  • MongoDB Enterprise:基于订阅、自行管理的 MongoDB 版本

  • MongoDB Community:source-available、免费使用且可自行管理的 MongoDB 版本

要了解有关在 Atlas 用户界面中为 MongoDB Atlas 托管的部署执行常见 CRUD 操作的更多信息,请参阅创建、查看、更新和删除文档

命令
语法
Find a Document

Usage Example
await coll.findOne({ title: 'Hamlet' });
coll.find({ year: 2005 });
await coll.insertOne({ title: 'Jackie Robinson' });
await coll.insertMany([
{ title: 'Dangal', rating: 'Not Rated' },
{ title: 'The Boss Baby', rating: 'PG' }
]);
await coll.updateOne(
{ title: 'Amadeus' },
{ $set: { 'imdb.rating': 9.5 } }
);
await coll.updateMany(
{ year: 2001 },
{ $inc: { 'imdb.votes': 100 } }
);
Update Arrays in Documents

await coll.updateOne(
{ title: 'Cosmos' },
{ $push: { genres: 'Educational' } }
):
await coll.replaceOne(
{ name: 'Deli Llama', address: '2 Nassau St' },
{ name: 'Lord of the Wings', zipcode: 10001 }
);
await coll.deleteOne({ title: 'Congo' });
await coll.deleteMany({ title: { $regex: /^Shark.*/ } });
await coll.bulkWrite([
{
insertOne: {
document: {
title: 'A New Movie',
year: 2022
}
}
},
{
deleteMany: {
filter: { year: { $lt: 1970 } }
}
}
]);
coll.watch([ { $match: { year: { $gte: 2022 } } } ]);
Access Data from a Cursor Iteratively

const cursor = coll.find();
for await (const doc of cursor) {
console.dir(doc);
}
Access Data from a Cursor as an Array

const cursor = coll.find();
const results = await cursor.toArray();
await coll.countDocuments({ year: 2000 });
List the Distinct Documents or Field Values
await coll.distinct('year');
Limit the Number of Documents Retrieved

coll.find().limit(2);
Skip Retrieved Documents

coll.find({ title: { $regex: /^Rocky/} }, { skip: 2 });
Sort the Documents When Retrieving Them

coll.find().sort({ year: 1});
Project Document Fields When Retrieving Them

coll.find().project({ _id: 0, year: 1, imdb: 1 });
await coll.createIndex({ title: 1, year: -1 });
// only searches fields with text indexes
coll.find({ $text: { $search: 'zissou' } });
Install the Driver Dependency
package.json
"dependencies": {
"mongodb": "^6.9",
...
}

后退

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