Insert data from nodejs to mongodb

See more:

MongoDB

Node.js

const express = require("express");
const handlebars = require("express-handlebars");
const mongoose = require("mongoose");
const bodyParser = require("body-parser");
const path = require("path");

const app = express();
const port = 3000;
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));

app.engine(".hbs", handlebars({ defaultLayout: "main", extname: ".hbs" }));
app.set("view engine", ".hbs");
app.use(express.static(path.join(__dirname, "public")));
app.use(express.urlencoded({ extended: false }));
app.use(express.json());

mongoose.Promise = global.Promise;
mongoose.connect(
"mongodb://usresa:passcode@mongodb-rukshi-shard-00-00.nerbj.gcp.mongodb.net:27017,mongodb-rukshi-shard-00-01.nerbj.gcp.mongodb.net:27017,mongodb-rukshi-shard-00-02.nerbj.gcp.mongodb.net:27017/db_name?ssl=true&replicaSet=atlas-dxrzem-shard-0&authSource=admin&retryWrites=true&w=majority",
{ useNewUrlParser: true, useUnifiedTopology: true }
);
const nameSchema = new mongoose.Schema({
name: String,
naquantityme: String,
description: String,
});
const User = mongoose.model("User", nameSchema);

// app.get("/", (req, res) => {
// res.sendFile(__dirname + "/AddProduct");
// });

app.get("/", (req, res) => {
res.render("login", { layout: "loginlayout" });
});

app.get("/home", (req, res) => {
res.render("dashboard", { layout: "main" });
});

app.use("/AddProduct", (req, res) => {
res.render("AddProduct", { layout: "main" });
});

app.post("/addproductform", (req, res) => {
var myData = new User(req.body);
myData
.save()
.then((item) => {
res.send("Product saved to database");
})
.catch((err) => {
res.status(400).send("Unable to save to database");
});
});

app.listen(port, () => {
console.log("Server listening on port " + port);
});

What I have tried:

Tried to relocalete hbs pages from views to outside view folder in project but its not working.