proxy.js

exports.proxy = function (config) {
  var http = require('http');

  return function(url, req, res) {
    req.host = config.couch.host;
    req.port = config.couch.port;
    req.path = url;

    console.log('proxy %s http://%s:%s%s', req.method, req.host, req.port, req.path);

    http.globalAgent.maxSockets = 500;

    var proxy_request = http.request(req, function(res2) {

      res2.on('data', function(chunk) {
        res.write(chunk);
      });

      res2.on('end', function() {
        res.end();
      });
    });

    proxy_request.on('error', function(err) {
      console.log('problem with proxy: ' + err.message);
    });

    req.on('data', function(req_data) {
      proxy_request.write(req_data);
    });

    req.on('end', function() {
      proxy_request.end();
    });

    req.on('error', function(err) {
      console.log('problem with request: ' + err.message);
    });
  }