wordpress自定义休息api - 按ID过滤

Question

我已经设法创建自定义api来显示这样的事件地点的所有数据。问题是如何按ID过滤地点？

地方列表的网址如下： www.mysite.com/wp-json/places/v1/list

我想通过ID过滤，如下所示： www.mysite.com/wp-json/places/v1/list?id=123

<?php
    function list_places() {
        $data = array();

        $args = array(
            'post_type' => 'event_places',
            'posts_per_page' => -1
        );

        $places = get_posts($args);
        $places_output = array();
        foreach ($places as $place) :
            $place_id = $place->ID;
            $places_output[] = array(
                'ID' => $place_id,
                'title' => $place->post_title,
                'adress' => get_field('address', $place_id),
                'zip' => get_field('zipcode', $place_id),
                'area' => get_field('area', $place_id)
            );
        endforeach;

        $data = $places_output;

        return $data;
    }

    add_action('rest_api_init', function () {
        $namespace = 'places/v1';
        $base = 'list';
        register_rest_route($namespace, '/' . $base, array(
            'methods' => 'GET',
            'callback' => 'list_places',
        ));
    });