Intro to scripting | Information Systems homework help

Create a simple Node.js server (Save as w4_firstname_lastname.js) . Create a restful application similar to the one in lesson 4. Document the routing table, and the application you created.

Extra: Modify any JavaScript code (or the JScript assignment)  to run from Node.js command line

Submit your week 4 work in w4_firstname_lastname.txt (Please save the file as a text file and upload the text file here for final review.)

A web service is a collection protocols and standards used for exchanging data between applications or systems. Services are written in various programming languages, and running on various platforms. The following table has URI examples on how to call the services.

Routing Table 

Sr. No.

HTTP Method







Get list of users





Get User with Id 1





Insert User with Id 2





Update User with Id 2





Delete User with Id 1


With ExpressJS, you can easily create a ReStful web services.

Here is an example how to create a routing table similar to the one above


// This application to demo the use of restfull services

// This is the core for any MV* pattern

// let me know if you have any question

// use express server, it must be in the node_modules

save this code as wk4_myserver.js in c:ENTD261

to run this code, make sure you are on c:entd261 if not change directory to c:entd261 

>cd c:entd261

C:ENTD261>node wk4_myserver.js

once the server is running, you will get

Express server listening on port 55555

from any browser



// setup

var express=require(“express”);

var http=require(“http”);

var app=express();

// run the server


console.log(‘Express server listening on port 55555’);

// <<< here is the Model, the data storage

var products = [

         { id: 0, name: ‘watch’, description: ‘Tell time with this amazing watch’, price: 30.00 },

         { id: 1, name: ‘sandals’, description: ‘Walk in comfort with these sandals’, price: 10.00 },

         { id: 2, name: ‘sunglasses’, description: ‘Protect your eyes in style’, price: 25.00 }


// http://localhost:55555                             // general route

// here is the view 

app.get(“”, function(req,res){

  var msg=””

  msg += “<center><h1> This is the default page </h1></center>”

  msg += ” use the following <br />”

  msg += ” http://localhost:55555/hello <br />”

  msg += ” http://localhost:55555/goodbye <br />”

  msg += ” http://localhost:55555/products <br />”

  msg += ” http://localhost:55555/products/2 <br />”



// <<< routes = controller

// http://localhost:55555/hello                    // welcome  route

app.get(“/hello”, function(req,res){

  res.send(“Hello ENTD261 class”);


// http://localhost:55555/goodbye                       // good bye route

app.get(“/goodbye”, function(req,res){

  res.send(“Thank you ENTD261 class”);


// http://localhost:55555/products                       // load and display all products

app.get(‘/products’, function(req, res) {



// http://localhost:55555/products/2                    // load and display product id 2

app.get(‘/products/:id’, function(req, res) {

         if ( > (products.length – 1) || < 0) {

                 res.statusCode = 404;

                 res.end(‘Not Found’);




Get 20% Discount on This Paper
Pages (550 words)
Approximate price: -

Try it now!

Get 20% Discount on This Paper

We'll send you the first draft for approval by at
Total price:

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

Assignment Help has assembled a team of highly skilled writers with diverse experience in the online writing circles. Our aim is to become a one stop shop for all your Academic/ online writing. Check out below our amazing service!


Essay Writing Services

At Assignment Help, we prioritize on all aspects that creates a good grade such as impeccable grammar, proper structure, zero-plagiarism, and conformance to guidelines. The principal purpose of essay writing is to present the author's evaluation concerning a singular subject about which they have made. Since Professionalism is the mother of every success, try our team of experienced writers in helping you complete your essays and other assignments.


Admission Papers

You have been trying to join that prestigious institution you long yearned for, but the hurdle of an admission essay has become a stumbling block. We have your back, with our proven team that has gained invaluable experience over time, your chance of joining that institution is now! Just let us work on that essay.How do you write an admission essay? How do you begin the essay? For answers, try Quality Custom Writers Now!


Editing and Proofreading

Regardless of whether you're pleased with your composing abilities, it's never an impractical notion to have a second eye go through your work. The best editing services leaves no mistake untouched. We recognize the stuff needed to polish up a writing; as a component of our editing and proofreading, we'll change and refine your write up to guarantee it's amazing, and blunder free. Our group of expert editors will examine your work, giving an impeccable touch of English while ensuring your punctuation and sentence structures are top-notch.


Technical papers

We pride ourselves in having a team of clinical writers. The stringent and rigorous vetting process ensures that only the best persons for job. We hire qualified PhD and MA writers only. We equally offer our team of writers bonuses and incentives to motivate their working spirit in terms of delivering original, unique, and informative content. They are our resources drawn from diverse fields. Therefore your technical paper is in the right hands. Every paper is assessed and only the writers with the technical know-how in that field get to work on it.


College Essay Writing

If all along you have been looking for a trustworthy college essay service provider that provides superb academic papers at reasonable prices, then be glad that you search has ended with us. We are your best choice! Get high-quality college essay writing from our magnificent team of knowledgeable and dedicated writers right now!


Quality Assignment/Homework Help

We give the students premium quality assignments, without alarming them with plagiarism and referencing issues. We ensure that the assignments stick to the rules given by the tutors. We are specific about the deadlines you give us. We assure you that you will get your papers well in advance, knowing that you will review and return it if there are any changes, which should be incorporated.