const config = {
  access_token = 'access_token',
  ssid = 'ssid',
  password = 'password'
};

const axios = require('axios');

const generateQrCode = async (path, scene) => {
  const url = `https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=${coonfig.access_token}`;

  const params = {
    scene: scene, // 参数，格式为json字符串
    page: path, // 扫码后跳转的小程序页面路径
    width: 430 // 二维码的宽度
  };

  try {
    const response = await axios({
      method: 'POST',
      url: url,
      data: params,
      responseType: 'arraybuffer' // 重要：需要设置响应类型为arraybuffer
    });

    // 将response.data（一个Buffer）写入文件
    fs.writeFileSync('qrcode.png', response.data);
    console.log('小程序码已生成');
  } catch (error) {
    console.error('生成小程序码失败', error);
  }
};

// 使用示例
generateQrCode('pages/connect-wifi/connect-wifi', `{"SSID":"${config.ssid}","password":"${config.password}"}`);