screen/application/service/byte_dance/ByteDanceCode2Session.php

<?php
namespace app\service\byte_dance;

use think\Cache;

class ByteDanceCode2Session implements ByteDanceInterface {
    protected $code;

    public function setCode($code)
    {
        $this->code = $code;
        return $this;
    }
    public function get()
    {
        return ByteDance::httpPost('https://developer.toutiao.com/api/apps/v2/jscode2session',$this->params());
    }

    protected function params(){
        return [
            'appid'=>ByteDance::appId(),
            'secret'=>ByteDance::appSecret(),
            'code'=>$this->code,
        ];
    }
}