how to use another page urls from running page and how to create router |, rest api ain nodejs nodejstututorials

 u already seen this below code in above programms or previus posts

create router folder 

in thgat create productRouter.js

const express = require('express');

const app = express();

var mongoose= require("mongoose");

var Persons=require("../models/personSchema,js");

var productRouter = express.Router();

var bodyParser = require('body-parser');

productRouter.use(bodyParser.json());

productRouter.route('/')

.get(function (req,res)

{

Persons.find({}, function(err,person)

{

if(err) throw err;

res.json(person);

})

})

module.exports= productRouter;

in index.js

import and use this file

var productRouter = require('./router/productRouter');

use

app.use('/products', productRouter);

http://localhost:3000/products/

if u hit this api - u can get

all the things in product page