say-name.php

/**
 * Returns name field in url parameter.
 *
 * @param object $args Options for the function.
 * @author Scott Anderson <scott.anderson@webdevstudios.com>
 * @return string
 */
function say_name( object $args ) {
	return $args['name'];
}

add_action( 'rest_api_init', function () {
	register_rest_route( 'myepiscopal', '/say_name/', array(
		'methods'  => 'GET',
		'callback' => 'say_name',
	) );
} );