我正在创建一个简单的MERN堆栈项目-用户使用包含ObjectId用户引用的笔记模型做笔记，同时测试端点，它给了我一个没有响应的请求发送，我需要知道为什么。

//Note model
  const mongoose = require('mongoose');
  const AutoIncrement = require('mongoose-sequence')(mongoose);

//create employee schema

    const noteSchema = new mongoose.Schema(
      {
        user: {
          type: mongoose.Schema.Types.ObjectId,
          required: true,
          ref: 'User',
        },
        title: {
          type: String,
          required: [true, 'title note is required!'],
        },
        text: {
          type: String,
          required: [true, 'note description is required!'],
        },
        completed: {
          type: Boolean,
          default: false,
        },
      },
      {
        timestamps: true,
      }
    );
    
    noteSchema.plugin(AutoIncrement, {
      inc_field: 'ticket',
      id: 'ticketNums',
      start_seq: 500,
    });
    
    module.exports = mongoose.model('Note', noteSchema);

createNote控制器代码：
请注意，req.id是从jwt访问令牌获取的。

const createNote = asyncHandler(async (req, res) => {
  const { title, text } = req.body;
  if (!title || !text)
    return res.status(400).json({
      message: 'title and text are required for creating a new note.!',
    });

  const note = await Note.create({
    user: req.id,
    title,
    text,
  });
  return res.status(201);
});