WordPress 4.7 dropped late last year with a host of great new features, particularly content endpoints for the WP REST API built into core. This deck will discuss what types of agency projects are a good fit for the REST API—and which aren't. We'll also dive into some practical use cases and real-world examples to see the power of the WordPress REST API first-hand.

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13. /wp-json/wp/v2/posts
Index Namespace Route

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26. 'validate_callback' => function ( $param, $request, $key ) {
if( ! is_numeric( $param ) ){
return new WP_Error(
'books_bad_post_id',
__( 'Invalid post ID format. Please pass an integer.' ),
array( 'status' => 400 )
);
}
$post_id = (int) $param;
if ( false === get_post_status( $post_id ) || 'books' !== get_post_type( $post_id ) ) {
return new WP_Error(
'books_bad_post_id',
__( 'Invalid books post ID.' ),
array( 'status' => 400 )
);
}
return true;
}

34. wp scaffold plugin-tests wp scaffold theme-tests
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35. class Test_REST_API

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38. A Day of REST is the WordPress REST API conference March 9th, 2017 at The
Calderwood Center, Boston. Workshops March 8th and 10th.