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Feb 28, 2017
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Apr 3, 2018

readme.md

ACF to REST API

Exposes Advanced Custom Fields Endpoints in the WordPress REST API

https://wordpress.org/plugins/acf-to-rest-api/

Installation

  1. Copy the acf-to-rest-api folder into your wp-content/plugins folder
  2. Activate the ACF to REST API plugin via the plugin admin page

Endpoints

Endpoint READABLE EDITABLE
/wp-json/acf/v3/posts new yes no
/wp-json/acf/v3/posts/{id} yes yes
/wp-json/acf/v3/posts/{id}/{field-name} yes yes
/wp-json/acf/v3/pages new yes no
/wp-json/acf/v3/pages/{id} yes yes
/wp-json/acf/v3/pages/{id}/{field-name} yes yes
/wp-json/acf/v3/users new yes no
/wp-json/acf/v3/users/{id} yes yes
/wp-json/acf/v3/users/{id}/{field-name} yes yes
/wp-json/acf/v3/{taxonomy} new yes no
/wp-json/acf/v3/{taxonomy}/{id} new yes yes
/wp-json/acf/v3/{taxonomy}/{id}/{field-name} new yes yes
/wp-json/acf/v3/comments new yes no
/wp-json/acf/v3/comments/{id} yes yes
/wp-json/acf/v3/comments/{id}/{field-name} yes yes
/wp-json/acf/v3/media new yes no
/wp-json/acf/v3/media/{id} yes yes
/wp-json/acf/v3/media/{id}/{field-name} yes yes
/wp-json/acf/v3/{post-type} new yes no
/wp-json/acf/v3/{post-type}/{id} new yes yes
/wp-json/acf/v3/{post-type}/{id}/{field-name} new yes yes
/wp-json/acf/v3/options/{id} new yes yes
/wp-json/acf/v3/options/{id}/{field-name} new yes yes

Filters

Filter Argument(s)
acf/rest_api/id mixed ( string, integer, boolean ) $id
string $type new
string $controller new
acf/rest_api/key string $key
WP_REST_Request $request
string $type
acf/rest_api/item_permissions/get boolean $permission
WP_REST_Request $request
string $type
acf/rest_api/item_permissions/update boolean $permission
WP_REST_Request $request
string $type
acf/rest_api/{type}/prepare_item mixed ( array, boolean ) $item
WP_REST_Request $request
acf/rest_api/{type}/get_fields mixed ( array, WP_REST_Request ) $data
mixed ( WP_REST_Request, NULL ) $request
acf/rest_api/field_settings/show_in_rest new boolean $show
acf/rest_api/field_settings/edit_in_rest new boolean $edit

Basic example of how to use the filters, in this case I will set a new permission to get the fields

add_filter( 'acf/rest_api/item_permissions/get', function( $permission ) {
  return current_user_can( 'edit_posts' );
} );

Deprecated filters

Filter Argument(s)
acf/rest_api/type string $type
acf/rest_api/types array $types
acf/rest_api/default_rest_base boolean $default
string $type

Request API version

See below how to select the Request API Version.

  1. Open the plugins page;
  2. Click the settings link under the pluing name ( ACF to REST API );
  3. Select your version in the ACF to REST API session;
  4. Click in the button Save changes.

Choose request API version

The other alternative is to define the constant ACF_TO_REST_API_REQUEST_VERSION in your wp-config.php

define( 'ACF_TO_REST_API_REQUEST_VERSION', 2 );

Field Settings

In this version is possible to configure the field options via admin.

The options are enabled using the filters below, by default theses options are disabled.

// Enable the option show in rest
add_filter( 'acf/rest_api/field_settings/show_in_rest', '__return_true' );

// Enable the option edit in rest
add_filter( 'acf/rest_api/field_settings/edit_in_rest', '__return_true' );

After you activate the filters, all your fields should show these options: Choose request API version

Editing the fields

The fields should be sent into the key fields.

Field Name

Action: http://localhost/wp-json/acf/v3/posts/1

<form action="http://localhost/wp-json/acf/v3/posts/1" method="POST">
  <?php 
    // https://developer.wordpress.org/rest-api/using-the-rest-api/authentication/
    wp_nonce_field( 'wp_rest' ); 
  ?>
  <label>Site: <input type="text" name="fields[site]"></label>
  <button type="submit">Save</button>
</form>

Action: http://localhost/wp-json/wp/v2/posts/1

<form action="http://localhost/wp-json/wp/v2/posts/1" method="POST">
  <?php 
    // https://developer.wordpress.org/rest-api/using-the-rest-api/authentication/
    wp_nonce_field( 'wp_rest' ); 
  ?>
  <label>Title: <input type="text" name="title"></label>
  <h3>ACF</h3>
  <label>Site: <input type="text" name="fields[site]"></label>
  <button type="submit">Save</button>
</form>

Use the filter acf/rest_api/key to change the key fields.

add_filter( 'acf/rest_api/key', function( $key, $request, $type ) {
  return 'acf_fields';
}, 10, 3 );

Now, the fields should be sent into the key acf_fields

<form action="http://localhost/wp-json/acf/v3/posts/1" method="POST">
  <?php 
    // https://developer.wordpress.org/rest-api/using-the-rest-api/authentication/
    wp_nonce_field( 'wp_rest' ); 
  ?>
  <label>Site: <input type="text" name="acf_fields[site]"></label>
  <button type="submit">Save</button>
</form>

Examples

Sample theme to edit the ACF Fields.

https://github.com/airesvsg/acf-to-rest-api-example

To-do list new

https://github.com/airesvsg/to-do-list-acf-to-rest-api

Get ACF Fields Recursivelynew

https://github.com/airesvsg/acf-to-rest-api-recursive

More details:

Cache

Enable caching for WordPress REST API and increase speed of your application.

https://github.com/airesvsg/wp-rest-api-cache