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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
Line | Code |
---|---|
340 | * Allows modification of the response before returning. |
341 | * |
342 | * @since 4.4.0 |
343 | * @since 4.5.0 Applied to embedded responses. |
344 | * |
345 | * @param WP_HTTP_Response $result Result to send to the client. Usually a WP_REST_Response. |
346 | * @param WP_REST_Server $this Server instance. |
347 | * @param WP_REST_Request $request Request used to generate the response. |
348 | */ |
349 | $result = apply_filters( 'rest_post_dispatch', rest_ensure_response( $result ), $this, $request ); |
350 |
|
351 | // Wrap the response in an envelope if asked for. |
352 | if ( isset( $_GET['_envelope'] ) ) { |
353 | $result = $this->envelope_response( $result, isset( $_GET['_embed'] ) ); |
354 | } |
355 |
|
356 | // Send extra data from response objects. |
357 | $headers = $result->get_headers(); |
358 | $this->send_headers( $headers ); |
Line | Code |
572 |
|
573 | // Embedded resources get passed context=embed. |
574 | if ( empty( $request['context'] ) ) { |
575 | $request['context'] = 'embed'; |
576 | } |
577 |
|
578 | $response = $this->dispatch( $request ); |
579 |
|
580 | /** This filter is documented in wp-includes/rest-api/class-wp-rest-server.php */ |
581 | $response = apply_filters( 'rest_post_dispatch', rest_ensure_response( $response ), $this, $request ); |
582 |
|
583 | $embeds[] = $this->response_to_data( $response, false ); |
584 | } |
585 |
|
586 | // Determine if any real links were found. |
587 | $has_links = count( array_filter( $embeds ) ); |
588 | if ( $has_links ) { |
589 | $embedded[ $rel ] = $embeds; |
590 | } |