Create a simple Node.js server (Save as w4_firstname_lastname.js) . Create a restful application similar to the one in lesson 4 (ReSTFul Web Services).

*Document the routing table, and the application you created*.

You will need: some data (either in a json file, or in the actual js file).

You will need several functions to work on the data: list all, list one.. Make sure as always that if you are querying something, it is there before accessing it..

Here is the example from lesson 4:

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 refer

app.get("/", function(req,res){

var msg=""

msg += "

This is the default page

"

msg += " use the following
"

msg += " http://localhost:55555/hello
"

msg += " http://localhost:55555/goodbye
"

msg += " http://localhost:55555/products
"

msg += " http://localhost:55555/products/2
"

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]));

});