如何解决“ TypeError：Router.use（）需要中间件功能但有一个对象”

Question

I am having an error with an express routing app

const express = require('express');
const router = express.Router();

router.get('/test', (req, res) => res.json({ msg: 'Users Works' }));

module.exports = router;

TypeError: Router.use() requires a middleware function but got a Objec

Answer 1

This error occurs if there is no // module.exports = router; //

If it error still continues, then you might have a middleware that is not yet set up that executes before this route.

Answer 2

Export Router From First File like this.

const express = require("express");
const router = express.Router();
router.get("/", async (req, res) => {
  const result = await Post.find();
  res.status(200).json({
    message: "Some Data",
  });
});
module.exports = router;

Then Import in other root files like this and use

const express = require("express");
const app = express();
const todo = require("./routes/todo/todo");
app.use("/todo", todo);

For Reference Complete Nodejs Routing App