db insert in mongoose code example

Example 1: mongoose add document

const Product = require('../models/product.js');

const product = new Product();
product.save()
		.then(doc => {})
        .catch(err => {});

Example 2: insert a data into mongo using express

var mongoose = require("mongoose");mongoose.Promise = global.Promise;mongoose.connect("mongodb://localhost:27017/node-demo");