How to use AngularJS to build a client side web application using WordPress and WP-API

1. 1
WordPress
And Client Side
Applications
Roy Sivan Twitter/Github - @royboy789 roysivan.com | arcctrl.com

2. There will be code
There will be learning
Be Warned

3. WordPress developer at
Disney
and the co-founder of
My first install of WordPress was
0.7 and been a user &
developer since
Roy Sivan Twitter/Github - @royboy789 roysivan.com | arcctrl.com
Who is this geek?

4. Why build Web Applications
with WordPress?
Why not?

5. How to use
WP as a
(faux)
MVC to build a
Client-Side
S.P.A powered by
WP-API

6. WP
Very nice!

7. WP as a MVC?
MODEL -
Deals with the database (save data)
VIEW -
Deals with what people see (view data)
CONTROLLER -
Deals with logic in between (data logic)
Why? Decoupling the functionality from the view

8. Client Side?
Client = Browser
POP QUIZ
What is the fastest file a web server
can serve?

9. PHP is the language behind WordPress
SERVERCLIENT
Client: Sends request for index.php
Server: Processes PHP code turning it into HTML.
Returns full HTML

10. What if you could pass the rendering
process to the client?
SERVERCLIENT
Client: Sends request for template.html
Server: Returns template.html
Client: Renders & Displays template.html
While rendering request to server for data (JSON)

11. Benefits of Loading Client Side
Less load on the server
CDN all template files
Easier to cache JS and HTML
VERY Scalable
AJAX - can transform your UI / UX

12. Single Page Web Application
S.P.A

13. Code Example: Server Side Loop
while( have_posts() ) : the_post();
the_content();
endwhile;

14. Code Example: Server Side Loop
<?php
//list all posts - this is PHP & HTML
while ( have_posts() ) : the_post();
?>
<article class="postWrapper">
<h3 class="page_title text-center">
<a href=“<?php the_permalink(); ?>” class="content">
<?php the_title(); ?>
</a>
</h3>
<?php the_content(); ?>
</article>
<?php
endwhile;
?>

15. Living on the client side

16. Code Example: Client Side Loop
(using AngularJS)
//list all posts - this is HTML
<article class="postWrapper" ng-repeat="post in posts” >
<h3 class="page_title text-center">
<a href=“/coh/#/post/{{post.ID}}” class="content">
{{post.title}}
</a>
</h3>
{{post.content}}
</article>

17. AngularJS - the important bits
<article class="postWrapper" ng-repeat="post in posts” >
…
</article>
{{post.XXXXXX}}
ng-repeat
Post object

18. AngularJS - the important bits
<?php the_title(); ?>
PHP AngularJS Template
{{post.title}}
<?php the_content(); ?> {{post.title}}
<?php the_permalink(); ?> {{post.link}}

19. // Factory
app.factory('Posts', function($resource){
return $resource(MyAjax.resturl+’/posts/:id, {
update: {method: 'PUT'}
});
});
// Controller
function ListCtrl($scope, $http, Posts){
$scope.posts = Posts.query();
});
Powering Angular

20. WP-API Response Example
/posts - WP-API endpoint
{
ID: 1
content: '<p>Welcome to WordPress. This is your first post. Edit or
delete it, then start blogging!</p>',
title: 'Hello world!',
status: 'publish',
author : {..},
...
},
…

21. Case Study: CodingOfficeHours.com

22. CodingOfficeHours.com
WordPress for:
User Creation
User Authentication
Custom Post Types
Data Storage
S.P.A for:
WebRTC - Video
Firebase - Text Chat
User Dashboard
User Profiles

23. Awesome Resources
Roy Sivan Twitter/Github - @royboy789 roysivan.com | arcctrl.com
WP-API on GitHub
https://github.com/WP-API/WP-API
CodingOfficeHours
http://www.codingofficehours.com
AngularJS WP Theme
http://www.roysivan.com/angular-wordpress-theme
AngularJS For WP Plugin
http://www.roysivan.com/angularjs-for-wordpress
Community Built WP App with AngularJS & Slides
http://www.roysivan.com/blog

24. Thank You
Find me online:
Twitter: @royboy789
Github: @royboy789
CodingOfficeHours.com
Roy Sivan Twitter/Github - @royboy789 roysivan.com | arcctrl.com