如何使用node js autoIncrement id和post到mongodb

npm install mongodb
npm install mongoose-auto-increment

const mongoose = require('mongoose');
const autoIncrement = require('mongoose-auto-increment');

mongoose.connect('mongodb://localhost/mydatabase', { useNewUrlParser: true, useUnifiedTopology: true });
const db = mongoose.connection;
db.on('error', console.error.bind(console, '连接错误：'));
db.once('open', function() {
  console.log('成功连接到数据库');
});

const Schema = mongoose.Schema;
autoIncrement.initialize(db);

const mySchema = new Schema({
  // 其他字段
  // ...
  // 自增ID字段
  id: { type: Number, required: true, unique: true },
});

mySchema.plugin(autoIncrement.plugin, {
  model: 'MyModel',
  field: 'id',
  startAt: 1,
  incrementBy: 1,
});

const MyModel = mongoose.model('MyModel', mySchema);

app.post('/api/data', function(req, res) {
  const newData = new MyModel(req.body);
  newData.save(function(err, savedData) {
    if (err) {
      console.error(err);
      res.status(500).send('保存数据时出错');
    } else {
      res.status(200).send(savedData);
    }
  });
});

app.listen(3000, function() {
  console.log('服务器已启动，监听端口3000');
});