How to Get Featured Image from WordPress REST API

Luckily, there are few ways that you can get the featured image after calling the REST API.

Method 1: Use Better REST API featured images plugin. I don’t recommend using this plugin unless you are super lazy.

Method 2: Add ?_embed at the end of the URL. Take a look at the example below

https://example.com/wp-json/wp/v2/posts?_embed

Your featured image is in:

[your-data]._embedded['wp:featuredmedia']['0'].source_url

Method 3: Add featured image directly to REST API. You can do it by editing the functions.php files or creating a plugin for this. (Credit to my boss :D)

add_action('rest_api_init', 'register_rest_images' );function register_rest_images(){
    register_rest_field( array('post'),
        'fimg_url',
        array(
            'get_callback'    => 'get_rest_featured_image',
            'update_callback' => null,
            'schema'          => null,
        )
    );
}function get_rest_featured_image( $object, $field_name, $request ) {
    if( $object['featured_media'] ){
        $img = wp_get_attachment_image_src( $object['featured_media'], 'app-thumb' );
        return $img[0];
    }
    return false;
}

• API
• Wordpress