screen/application/api/controller/mall/Index.php

<?php

namespace app\api\controller\mall;

use app\common\controller\Api;
use app\common\model\Category;

/**
 * 商城首页接口
 * @inheritdoc
 */
class Index extends Api
{
    protected $noNeedLogin = '*';
    protected $noNeedRight = '*';

    /**
     * 首页分类和商品
     */
    public function category(){
        $category=Category::mall(['goods']);
        $this->success('',$category);
    }
}