获取Node.js + Express REST API以更新mongoDB

mkdir my-api

cd my-api

npm init -y

npm install express mongoose body-parser

const express = require('express');
const bodyParser = require('body-parser');
const mongoose = require('mongoose');

const app = express();
const port = 3000;

// 连接到MongoDB数据库
mongoose.connect('mongodb://localhost/my-api', {
  useNewUrlParser: true,
  useUnifiedTopology: true
}).then(() => {
  console.log('Connected to MongoDB');
}).catch((err) => {
  console.log('Failed to connect to MongoDB', err);
});

// 定义数据库模型和模式
const Schema = mongoose.Schema;
const userSchema = new Schema({
  name: String,
  email: String,
});

const User = mongoose.model('User', userSchema);

// 解析请求体中的JSON数据
app.use(bodyParser.json());

// 处理POST请求，创建新用户
app.post('/users', (req, res) => {
  const user = new User(req.body);

  user.save().then(() => {
    res.send('User created');
  }).catch((err) => {
    res.status(400).send('Failed to create user');
  });
});

// 启动服务器
app.listen(port, () => {
  console.log(`Server running on port ${port}`);
});

node server.js