Simple code to proxy localhost to a particular host

simple-proxy.js

const http = require('http');

function onRequest(clientReq, clientRes) {
    console.log(`serve: ${clientReq.url}`);

    const options = {
        hostname: 'foo.ngrok.io',
        port: 80,
        path: clientReq.url,
        method: 'GET',
    };

    const proxy = http.request(options, (res) => {
        res.pipe(
            clientRes,
            {
                end: true,
            },
        );
    });

    clientReq.pipe(
        proxy,
        {
            end: true,
        },
    );
}

http.createServer(onRequest).listen(3001);