wifi-assistant/create_qr_code.ts

import axios from "axios";
import { writeFileSync } from "fs";
import config from "./create_qr_code.json";

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

generateQRCode(
  "pages/connect-wifi/connect-wifi",
  `{"SSID":"${config.ssid}","password":"${config.password}"}`
);