浏览器发起请求，后端 node.js 收到浏览器请求后用 axios 请求一个接口，如何把接口的返回结果给浏览器？

const http = require('http')
const axios = require('axios')
const qs = require('qs')
var request = require('request');

//    返回一个 Server 实例
const server = http.createServer()

async function getData (){
    let obj = {
        'type': "1"
    }

    url = "http://httpbin.org/post"
    const promise = axios.post(url, qs.stringify(obj), {
        headers: {
            'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8',
            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36'
        }
    })

    const dataPromise = promise.then((response)=>response.data)
    return dataPromise
}


server.on('request', function (request, response) {

    console.log('收到客户端的请求了，请求路径是：' + request.url)

    response.write('hello')
    getData().then((res) => {
        // response.write(res)
        console.log(res)  //res 怎么返回给前端
    })
    // 告诉客户端，我的话说完了，你可以呈递给用户了
    response.end()
})

server.listen(3000, function () {
    console.log('服务器启动成功了，http://127.0.0.1:3000/')
})