SPA(Single-page application) web-solutions are now a days the new standard of web development, becoming more and more popular and narrowing down the difference between a desktop and web application. JavaScript libraries/frameworks like Backbone, Knockout, Angular along with RESTful web APIs provide a great platform to develop SPA web-solutions.

1. Using RESTful APIs in AngularJS
Presenter: Jyotirmaya Dehury, Mindfire Solutions
Date: 07/30/2014

2. 1. REST Concepts.
2. CRUD(create, read, update, and delete) with REST.
3. Basics of AngularJS
4. Consuming RESTful APIs using ngResource module in AngularJS.
5. Demo App.
Agenda
Presenter: Jyotirmaya Dehury, Mindfire Solutions

3. REST Concepts
REST is a standard to be followed.
Helps you to build an API that is efficient, easy to use and HIGHLY
UNDERSTANDABLE.
RESOURCE-oriented model to expose their services.
Create a uniform interface by mapping HTTP methods to CRUD
CRUD = Create, Read, Update, Delete
HTTP methods = POST, GET, PUT, DELETE
Create = POST
Read = GET
Update = PUT
Delete = DELETE
Presenter: Jyotirmaya Dehury, Mindfire Solutions

4. REST Concepts
So instead of API calls such as:
Create – POST: /user/new
Read – GET: /user?id=1
Update – POST: /user/update
Delete – GET: /user/delete?id=1
Simply:
Create – POST: /user (with the variables in the entity-body)
Read – GET: /user/1
Update – PUT: /user/1 (with the variables in the entity-body)
Delete – DELETE: /user/1
Presenter: Jyotirmaya Dehury, Mindfire Solutions

5. REST Concepts
Consider the following:
POST: http:/test.com/user
GET: http:/test.com/user/1
PUT: http:/test.com/user/1
DELETE: http:/test.com/user/1
POST, GET, PUT, DELETE are the methods
http:/test.com/user, http:/test.com/user/1 are URI’s
user/1 is a user, which is a resource
Understand Resources and REST URI
Presenter: Jyotirmaya Dehury, Mindfire Solutions

6. REST Concepts
Difference between a resource and a representation:
GET: http:/test.com/user/1 will return a
Representation
{"firstName":"John", "lastName":"Doe"}
Of the resource user:1.
A representation will have a format like JSON or XML.
A client application gets a REPRESENTATION of
the resource using the REST URI
Presenter: Jyotirmaya Dehury, Mindfire Solutions

7. AngularJS
A great framework to develop SPA web-solutions.
An MVC framework.
A JavaScript framework to develop web applications.
Presenter: Jyotirmaya Dehury, Mindfire Solutions

8. AngularJS
Angular Features
Presenter: Jyotirmaya Dehury, Mindfire Solutions
Server
APIs

9. AngularJS
Its a JavaScript object.
Angular services help to build reusable business logic which can be
shared and used across the app.
Angular Services
$http
$resource
$q
$anchorScroll
$cacheFactory
$compile
$parse
$locale
$timeout
$exceptionHandler
$filter
$cookieStore
$route
$routeParams
$location
● Built-In Services
Presenter: Jyotirmaya Dehury, Mindfire Solutions● Custom Services

10. AngularJS
The ngResource module provides interaction support with RESTful
services via the $resource service.
ngResource
Installation
<script src=”angular.js”>
<script src=”angular-resource.js”>
Presenter: Jyotirmaya Dehury, Mindfire Solutions

11. AngularJS
Creates a resource object that lets you interact with RESTful server-side
data sources.
$resource
$resource(url, [paramDefaults], [actions], options);
var User = $resource('/user/:userId', {userId:'@id'});
var user = User.get({userId:123});
// GET: /user/123
Presenter: Jyotirmaya Dehury, Mindfire Solutions

12. AngularJS
Creates a resource object that lets you interact with RESTful server-side
data sources.
$resource
$resource(url, [paramDefaults], [actions], options);
{ 'get' : {method: 'GET' },
'save' : {method: 'POST' },
'query' : {method: 'GET' , isArray:true},
'remove' : {method: 'DELETE' },
'delete' : {method: 'DELETE' } };
Presenter: Jyotirmaya Dehury, Mindfire Solutions

13. Demo
Presenter: Jyotirmaya Dehury, Mindfire Solutions

14. Questions?
Presenter: Jyotirmaya Dehury, Mindfire Solutions

15. http://www.pluralsight.com/
https://docs.angularjs.org/api/ngResource/service/$resource
http://mark-kirby.co.uk/2013/creating-a-true-rest-api/
IBM – RESTful Web Services: The Basics
https://www.youtube.com/watch?v=QHIMygADPPc
References
Presenter: Jyotirmaya Dehury, Mindfire Solutions

16. Presenter: Jyotirmaya Dehury, Mindfire Solutions
Thank you

17. www.mindfiresolutions.com
https://www.facebook.com/MindfireSolutions
http://www.linkedin.com/company/mindfire-solutions
http://twitter.com/mindfires