Function: Handles OPTIONS requests for the server.

Function: Sends the “Allow” header to state all methods that can be sent to the current route.

Function: Filters the REST API response to include only a white-listed set of response object fields.

Function: Registers a REST API route.

Function: Registers a new field on an existing WordPress object type.

Function: Registers rewrite rules for the REST API.

Function: Adds REST rewrite rules.

Function: Registers the default REST API filters.

Function: Registers default REST API routes.

Function: Loads the REST API.