backend-api/app/extra/service/wechat/RoutineService.php

<?php

namespace app\extra\service\wechat;

use app\extra\basic\Service;
use EasyWeChat\MiniApp\Application;

class RoutineService extends Service
{

    protected $request;

    protected $utils;

    /**
     * 设置模型
     * @return string
     */
    public function __construct()
    {
        $miniapp =  new Application($this->options());
        $this->request =  $miniapp->getClient();
        $this->utils = $miniapp->getUtils();
    }

    protected function options()
    {
        return ['app_id'=>sConf('wechat.mini_appid'),'secret'=>sConf('wechat.mini_secret'),'token'=>'','aes_key'=>''];
    }

    /**
     * 列表
     * @param array $param
     */
    public function getUserInfo(string $code)
    {
        try {
            return $this->utils->codeToSession($code);
        } catch (\Throwable $throwable) {
            return error($throwable->getMessage());
        }

    }

}