wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php:733Creates a single post.
$requestWP_REST_RequestWP_REST_Response|WP_Error2 hooks fire while WP_REST_Posts_Controller::create_item() runs, in this order:
Fires after a single post is created or updated via the REST API.
Fires after a single post is completely created or updated via the REST API.
public function create_item( $request ) { if ( ! empty( $request['id'] ) ) { return new WP_Error( 'rest_post_exists', __( 'Cannot create existing post.' ), array( 'status' => 400 ) ); } $prepared_post = $this->prepare_item_for_database( $request ); if ( is_wp_error( $prepared_post ) ) { return $prepared_post; } $prepared_post->post_type = $this->post_type; if ( ! empty( $prepared_post->post_name ) && ! empty( $prepared_post->post_status ) && in_array( $prepared_post->post_status, array( 'draft', 'pending' ), true ) ) { /* * `wp_unique_post_slug()` returns the same slug for 'draft' or 'pending' posts. * * To ensure that a unique slug is generated, pass the post data with the 'publish' status. */ $prepared_post->post_name = wp_unique_post_slug( $prepared_post->post_name, $prepared_post->id, 'publish', $prepared_post->post_type, $prepared_post->post_parent ); } $post_id = wp_insert_post( wp_slash( (array) $prepared_post ), true, false ); if ( is_wp_error( $post_id ) ) { if ( 'db_insert_error' === $post_id->get_error_code() ) { $post_id->add_data( array( 'status' => 500 ) ); } else { $post_id->add_data( array( 'status' => 400 ) ); } return $post_id; } $post = get_post( $post_id ); /** * Fires after a single post is created or updated via the REST API. * * The dynamic portion of the hook name, `$this->post_type`, refers to the post type slug. * * Possible hook names include: * * - `rest_insert_post` * - `rest_insert_page` * - `rest_insert_attachment` * * @since 4.7.0 * * @param WP_Post $post Inserted or updated post object. * @param WP_REST_Request $request Request object. * @param bool $creating True when creating a post, false when updating. */ do_action( "rest_insert_{$this->post_type}", $post, $request, true ); $schema = $this->get_item_schema(); if ( ! empty( $schema['properties']['sticky'] ) ) { if ( ! empty( $request['sticky'] ) ) { stick_post( $post_id ); } else { unstick_post( $post_id ); } } if ( ! empty( $schema['properties']['featured_media'] ) && isset( $request['featured_media'] ) ) {Introduced in 4.7.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.