Upgrading Your AngularJS Theme To Work With WP API V2

functions-1.php

<?php

function my_rest_prepare_post( $data, $post, $request ) {

	$_data = $data->data;
	$thumbnail_id = get_post_thumbnail_id( $post->ID );
	$thumbnail = wp_get_attachment_image_src( $thumbnail_id );
	$_data['featured_image_thumbnail_url'] = $thumbnail[0];
	$data->data = $_data;

	return $data;
}
add_filter( 'rest_prepare_post', 'my_rest_prepare_post', 10, 3 );

functions-2.php

<?php

function my_rest_prepare_attachment( $data, $post, $request ) {

	$_data = $data->data;
	if ( 'image' == $_data['media_type'] )
		$_data['is_image'] = true;
	else
		$_data['is_image'] = false;
	$data->data = $_data;

	return $data;
}
add_filter( 'rest_prepare_attachment', 'my_rest_prepare_attachment', 10, 3 );

functions.php

<?php

function my_rest_post_query( $args, $request ) {

	if ( isset( $request['filter'] ) && isset( $request['filter']['posts_per_page'] ) && ! empty( $request['filter']['posts_per_page'] ) ) {
		if ( $request['filter']['posts_per_page'] > 0 ) {
			$request['per_page'] = $request['filter']['posts_per_page'];
		} else {
			$count_query = new WP_Query();
			unset( $query_args['paged'] );
			$query_result = $count_query->query( $query_args );
			$total_posts = $query_result->found_posts;
			$request['per_page'] = $total_posts;
		}
	}

	return $args;
}
add_filter( 'rest_post_query', 'my_rest_post_query', 10, 2 );

main.html

<!-- ... -->

<ul>
	<li ng-repeat="post in data.posts">
		<a href="blog/{{post.id}}" ng-bind-html="post.title.rendered"></a>
		<a href="blog/{{post.id}}" ng-if="post.featured_image_thumbnail_url"><img ng-src="{{post.featured_image_thumbnail_url}}" alt="{{post.featured_image.title.rendered}}" /></a>
		<div ng-bind-html="post.excerpt.rendered"></div>
	</li>
</ul>

<!-- ... -->

For more info, please refer to my original post: Upgrading Your AngularJS Theme To Work With WP API V2.