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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.
| Line | Code |
|---|---|
| 1030 | * Note that an endpoint's `permission_callback` can still be |
| 1031 | * called after this filter - see `rest_send_allow_header()`. |
| 1032 | * |
| 1033 | * @since 4.7.0 |
| 1034 | * |
| 1035 | * @param WP_HTTP_Response|WP_Error $response Result to send to the client. Usually a WP_REST_Response or WP_Error. |
| 1036 | * @param array $handler Route handler used for the request. |
| 1037 | * @param WP_REST_Request $request Request used to generate the response. |
| 1038 | */ |
| 1039 | $response = apply_filters( 'rest_request_after_callbacks', $response, $handler, $request ); |
| 1040 | |
| 1041 | if ( is_wp_error( $response ) ) { |
| 1042 | $response = $this->error_to_response( $response ); |
| 1043 | } else { |
| 1044 | $response = rest_ensure_response( $response ); |
| 1045 | } |
| 1046 | |
| 1047 | $response->set_matched_route( $route ); |
| 1048 | $response->set_matched_handler( $handler ); |