proxying requests to "/api/*" to an external HTTP API

express_to_api.js

var http = require('http'),
  , httpProxy = require('http-proxy')
  , express = require('express');

app = express();

var apiUrl = 'http://api.example.com:80';
var proxy = httpProxy.createProxyServer({target:apiUrl});

app.all('/api/*', function(req, res) {
  proxy.web(req, res, function(e) { console.log(e); });
});

app.listen(3030);