A simple proxy

app.js

var express  = require('express');
var app      = express();
var httpProxy = require('http-proxy');
var apiProxy = httpProxy.createProxyServer();
var ias = 'http://localhost:8765';

apiProxy.on('proxyReq', function (proxyReq, req, res) {
    // console.log('RAW Request headers sent to target:\n', JSON.stringify(proxyReq.getHeaders(), true, 2));
})
 
app.all("/*", function(req, res) {
    apiProxy.web(req, res, {target: ias});
});

app.listen(3000);

package.json

{
  "name": "proxy",
  "version": "1.0.0",
  "description": "A simple proxy using express.",
  "main": "index.js",
  "scripts": {
    "start": "node app.js",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "Sandip Chitale",
  "license": "ISC",
  "dependencies": {
    "express": "^4.16.3",
    "http-proxy": "^1.17.0"
  }
}