http-proxy

server.js

var http = require('http'),
    httpProxy = require('http-proxy');
//
// Create your proxy server and set the target in the options.
//
var apiProxy = new httpProxy.createProxyServer({
  target: {
    host: 'https://api.ppmroadmap.com/v1.2'
  }
});

apiProxy.on('proxyReq', function(proxyReq, req, res, options) {
  proxyReq.setHeader('Authorization', 'Basic Q0Q4QTVDNTdDRTU5OUQwOTJDNjMyQjBFRDkwODAyNkM4RjYzODYwQ0NCRUYyN0RCMTQ0QjNGMTJGRTJDNEY1MTo=');
});

var apiServer = http.createServer(function (req, res) {
  apiProxy.web(req, res);
});