与猫鼬一起使用动态集合

Question

您好，在这篇文章link here之后，我尝试在app.js中切换集合

mongoose.connection.useDb(collection).model("Employee", employeeSchema);

可以请一个简短的例子来写例子吗？！。

我正在搜索它，但对我来说不起作用。

我还要附上我的架构外观的示例。 谢谢：）

app.js

mongoose.connect(process.env.MONGO_URI).then((result) => {
        console.log("DB Connected");
      })

let businessCollection;
app.use("/:businessUrl", (req, res, next) => {
  console.log(req.params.businessUrl);
  businessCollection = req.params.businessUrl;
  next();
});

exports.businessCollection = businessCollection;

模式

const mongoose = require("mongoose");
const Schema = mongoose.Schema;
const { businessCollection } = require("../app");

const serviceSchema = new Schema(
  {
    title: {
      type: String,
      required: true,
    },
}
);

   module.exports = mongoose.connection.useDb(businessCollection)
  .model("Employee", employeeSchema);