do_action( 'rest_after_insert_attachment', WP_Post $attachment, WP_REST_Request $request, bool $creating )
Fires after a single attachment is completely created or updated via the REST API.
Parameters
- $attachment
 -  
(WP_Post) Inserted or updated attachment object.
 - $request
 -  
(WP_REST_Request) Request object.
 - $creating
 -  
(bool) True when creating an attachment, false when updating.
 
Source
File: wp-includes/rest-api/endpoints/class-wp-rest-attachments-controller.php
Changelog
| Version | Description | 
|---|---|
| 5.0.0 | Introduced. | 
    © 2003–2021 WordPress Foundation
Licensed under the GNU GPLv2+ License.
    https://developer.wordpress.org/reference/hooks/rest_after_insert_attachment