model.find 不是 function

Question

I am trying to learn node.js with mongoose. Simply want to read from database and display result in a browser. I have index.js where I compiled model from schema as

var mlink = mongoose.model('mlink',mlinkSchema)

Then I exported it so as to use it in server.js file as

module.exports = mongoose.model('mlink',mlinkschema);

Under server.js, I require it as

const mlink = require(__dirname, "../Scripts/index.js");

And now, I am using express router as below

const express = require('express');
const app = express();
const router = express.Router();
app.use("/", router);
router.route("/Scripts").get(function(req,res){
  mlink.find({},function(err, result){
    if (err) {
      res.send(err);
    }
    else {
      res.send(result);
    }
  });
});

Here I keep on getting error as mlink.find is not a function. Please help I am stuck.

Answer 1

Instead of this

module.exports = mongoose.model('mlink',mlinkschema);

It should be

module.exports = mlink;

Answer 2

If you have a correct model than

module.exports = mongoose.model('mlink',mlinkSchema);

should work (you had a typo in mlinkSchema it needs to have a capital S)

You would import a model like this:

const mlink = mongoose.model("mlink");

Getting data from MongoDB is time consuming it should be an asynchronous function

router.route("/Scripts").get(async function(req,res){
  await mlink.find({},function(err, result){
    if (err) {
      res.send(err);
    }
    else {
      res.send(result);
    }
  });