如果你需要用 WordPress 的 rest api 做小程序或者 APP，那你很大概率会用到 rest api，那么 WordPress 创建 post type 自定义文章类型时添加 rest api 支持呢?通常情况下注册的 post type 是并不能支持 rest api 访问的，你需要做额外的设置。，下面是实例代码：

1. /**

2.  * 创建post type时添加rest api支持

3.  *

4.  */

5. add_action( 'init', 'my_book_cpt' );

6. function my_book_cpt() {

7.   $labels = array(

8.     'name'               => _x( 'Books', 'post type general name', 'your-plugin-textdomain' ),

9.     'singular_name'      => _x( 'Book', 'post type singular name', 'your-plugin-textdomain' ),

10.     'menu_name'          => _x( 'Books', 'admin menu', 'your-plugin-textdomain' ),

11.     'name_admin_bar'     => _x( 'Book', 'add new on admin bar', 'your-plugin-textdomain' ),

12.     'add_new'            => _x( 'Add New', 'book', 'your-plugin-textdomain' ),

13.     'add_new_item'       => __( 'Add New Book', 'your-plugin-textdomain' ),

14.     'new_item'           => __( 'New Book', 'your-plugin-textdomain' ),

15.     'edit_item'          => __( 'Edit Book', 'your-plugin-textdomain' ),

16.     'view_item'          => __( 'View Book', 'your-plugin-textdomain' ),

17.     'all_items'          => __( 'All Books', 'your-plugin-textdomain' ),

18.     'search_items'       => __( 'Search Books', 'your-plugin-textdomain' ),

19.     'parent_item_colon'  => __( 'Parent Books:', 'your-plugin-textdomain' ),

20.     'not_found'          => __( 'No books found.', 'your-plugin-textdomain' ),

21.     'not_found_in_trash' => __( 'No books found in Trash.', 'your-plugin-textdomain' )

22.   );

24.   $args = array(

25.     'labels'             => $labels,

26.     'description'        => __( 'Description.', 'your-plugin-textdomain' ),

27.     'public'             => true,

28.     'publicly_queryable' => true,

29.     'show_ui'            => true,

30.     'show_in_menu'       => true,

31.     'query_var'          => true,

32.     'rewrite'            => array( 'slug' => 'book' ),

33.     'capability_type'    => 'post',

34.     'has_archive'        => true,

35.     'hierarchical'       => false,

36.     'menu_position'      => null,

37.     'show_in_rest'       => true,

38.     'rest_base'          => 'books',

39.     'rest_controller_class' => 'WP_REST_Posts_Controller',

40.     'supports'           => array( 'title', 'editor', 'author', 'thumbnail', 'excerpt', 'comments' )

41.   );

43.   register_post_type( 'book', $args );

44. }