利用nodejs写简单api

console.log('start')
// 导入http模块:
const http = require('http');
const fs = require('fs');
const miment = require('miment');
const port = 8081
// 创建http server，并传入回调函数:
const server = http.createServer(async (req, res) => {
  // 回调函数接收req和res对象,
  // 获得HTTP请求的method和url:
  const url = req.url;
  const ip = req.headers['x-forwarded-for'] || req.connection.remoteAddress || req.socket.remoteAddress || req.connection.socket.remoteAddress;
  console.log(`${miment().format('YYYY-MM-DD hh:mm:ss')}======ip:${ip}======方法:${req.method}======url:${req.url}`);
  res.writeHead(200, {
    "Content-Type": "text/html;charset=UTF-8"
  });
  switch (true) {
    case /favicon.ico/.test(url):
    fs.readFile('favicon.ico', (err, data) => {
      if (!err) {
        res.writeHead(200, {
          "Content-Type": "image/x-icon"
        });
        res.end(data)
      } else {
        throw err;
      }
    });
    break;
    case /^\/somekey/.test(url):
        //some
      break;
    default:
      //除上述之外操作
      require('./modules/error')(req, res)
      break;
  }
});

function promiseexample(a) {
  return new Promise((resolve, reject) => {
    if (a) {
      resolve
    } else {
      reject
    }
  })
}
server.listen(port, () => {
  console.log(`Server is running at http://127.0.0.1:${port}/`);
});

module.exports = (req, res) => {
  //不知道url跳转首页
  const url = req.url;
  const igList = ['']
  if (igList.indexOf(url) === -1) {
    res.writeHead(302, {
      'Location': 'https://www.meaqua.fun/'
    });
  } else {
    res.writeHead(404, {
      "Content-Type": "text/html;charset=UTF-8"
    });
  }
  res.end();
}