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

URI

Operation

CRUD

1

GET

/UserService/users

Get list of users

Read

2

GET

/UserService/users/1

Get User with Id 1

Read

3

PUT

/UserService/users/2

Insert User with Id 2

Update

4

POST

/UserService/users/2

Update User with Id 2

Create

5

DELETE

/UserService/users/1

Delete User with Id 1

Delete

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

http://localhost:55555/

*/

// setup

var express=require(“express”);

var http=require(“http”);

var app=express();

// run the server

http.createServer(app).listen(55555);

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(“https://www.homeworkmarket.com/”, 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 />”

  res.send(msg);

});

// <<< 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) {

         res.send(JSON.stringify(products));

 });

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

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

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

                 res.statusCode = 404;

                 res.end(‘Not Found’);

         }

         res.send(JSON.stringify(products[req.params.id]));

 });

Order a unique copy of this paper
(550 words)

Approximate price: $22

Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

We value our customers and so we ensure that what we do is 100% original..
With us you are guaranteed of quality work done by our qualified experts.Your information and everything that you do with us is kept completely confidential.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

The Product ordered is guaranteed to be original. Orders are checked by the most advanced anti-plagiarism software in the market to assure that the Product is 100% original. The Company has a zero tolerance policy for plagiarism.

Read more

Free-revision policy

The Free Revision policy is a courtesy service that the Company provides to help ensure Customer’s total satisfaction with the completed Order. To receive free revision the Company requires that the Customer provide the request within fourteen (14) days from the first completion date and within a period of thirty (30) days for dissertations.

Read more

Privacy policy

The Company is committed to protect the privacy of the Customer and it will never resell or share any of Customer’s personal information, including credit card data, with any third party. All the online transactions are processed through the secure and reliable online payment systems.

Read more

Fair-cooperation guarantee

By placing an order with us, you agree to the service we provide. We will endear to do all that it takes to deliver a comprehensive paper as per your requirements. We also count on your cooperation to ensure that we deliver on this mandate.

Read more

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency