Cmb2: Rest API doesn't work

[djob195]

Expected Behavior:

I wish to access the listing of all CMB2 boxes which have the 'show_in_rest' value set, GET request to: /wp-json/cmb2/v1/boxes.

Actual Behavior:

I was working with: "Postman", so I sent: "{{host}}/wp-json/cmb2/v1" (Where host = localhost) with a method: "GET", and the result is:

 {
  "code": "rest_no_route",
  "message": "No route was found matching the URL and request method",
  "data": {
    "status": 404
  }

Steps to reproduce:

1. Download and active pluging: WP REST API (Last version).
2. Download and active pluging: JSON Basic Authentication (Basic authentication - > user&password base 64).
3. Download and active pluging: CMB2 (last version).
4. Register a cmb2 fields (Look a code).
5. Worked with postman (look Actual Behavior).

Observations:

• I installed wordpress (Last version).
• In Permalink Settings, its active a option: "Post name" (.htaccess it's updated)

CMB2 Field Registration Code:

add_action( 'cmb2_admin_init', 'usuario_register_metabox' ); 
function usuario_register_metabox() { // [name metabox]_register_metabox
    $prefix = 'pws';
    $cmb_demo = new_cmb2_box( array(
        'id'            => $prefix . 'metabox',
        'title'         => esc_html__( 'Test Metabox', 'cmb2' ),
        'object_types'  => array( 'page', ), // Post type
        'show_in_rest' => WP_REST_Server::READABLE
    ) );
    $cmb_demo->add_field( array(
        'name'       => esc_html__( 'Test Text', 'cmb2' ),
        'desc'       => esc_html__( 'field description (optional)', 'cmb2' ),
        'id'         => $prefix . 'text',
        'type'       => 'text',
        'show_on_cb' => 'yourprefix_hide_if_no_cats', // function should return a bool value
        'show_in_rest' => WP_REST_Server::READABLE
    ) );
 }

Actually its work with:

add_action( 'rest_api_init', 'usuario_custom_meta_cpost' );
function usuario_custom_meta_cpost() 
{
    register_rest_field(
        'page',
        'pws.text', // id field title
        array(
            'get_callback'    => 'prefix_get_custom_meta_cpost',
            'update_callback' => 'prefix_update_post_meta_cpost',
            'schema'          => null,
        )
    );
}

function prefix_update_post_meta_cpost( $value, $object, $field_name ) {
    return update_post_meta( $object->term_post_id, $field_name, $value );
}

function prefix_get_custom_meta_cpost( $object, $field_name, $request ) {
    return get_post_meta( $object[ 'id' ], $field_name, true );
}

All functions its work in Rest api, if I sent "{{host}}/wp-json/wp/v2/page" (Postman) with a method Get,
and the result is:

 {
    "id": 17,
    "date": "2016-10-24T22:05:12",
    "date_gmt": "2016-10-24T22:05:12",
    "guid": {
      "rendered": "{{host}}/?post_type=integrante&p=17"
    },
    "modified": "2016-10-24T22:05:12",
    "modified_gmt": "2016-10-24T22:05:12",
    "slug": "integrante3",
    "type": "integrante",
    "link": "{{host}}/integrante/integrante3/",
    "title": {
      "rendered": "integrante3"
    },
    "author": 1,
    "equipo": [],
    "invitacion": "no",
    "aceptado": "pendiente",
    "_links": {
      "self": [
        {
          "href": "{{host}}/wp-json/wp/v2/integrante/17"
        }
      ],
      "collection": [
        {
          "href": "{{host}}/wp-json/wp/v2/integrante"
        }
      ],
      "about": [
        {
          "href": "{{host}}wp-json/wp/v2/types/integrante"
        }
      ],
      "author": [
        {
          "embeddable": true,
          "href": "{{host}}/wp-json/wp/v2/users/1"
        }
      ],
      "wp:attachment": [
        {
          "href": "{{host}}/wp-json/wp/v2/media?parent=17"
        }
      ],
      "wp:term": [
        {
          "taxonomy": "equipo",
          "embeddable": true,
          "href": "{{host}}/wp-json/wp/v2/equipo?post=17"
        }
      ],
      "curies": [
        {
          "name": "wp",
          "href": "https://api.w.org/{rel}",
          "templated": true
        }
      ]
    }

where attributes: equipo, invitacion and aceptado are fields cmb2, but when I sent with a method post dont work, because is not written in the fields of cmb2 (but its write a basics fields wordpress).

[jtsternberg]

The rest_no_route error will be seen if no boxes are registered with the 'show_in_rest' param. This is the case for you as you are using the cmb2_admin_init hook to register your box/fields. To use the REST API with a box, it must be hooked to the cmb2_init hook instead.

I'll update the REST API docs to document this fact.

[jtsternberg]

I've updated the docs, so please let me know if it is more clear.

[jtsternberg]

And I've also updated the example-functions.php file to reflect this fact.

[djob195]

@jtsternberg Thanks.