send request from node.js server

request.js

var generator_port = require('./config').generator.port,
    http = require('http'),
    extend = require('util')._extend;

module.exports = {
  _commonOptions: {
    port: generator_port,
    headers: {
      accept: 'application/json'
    }
  },
  _requestCallback: function(callback) {
    return function(response) {
      var result = '';

      response.on('data', function(chunk) {
        result += chunk;
      });
      response.on('end', function() {
        callback(JSON.parse(result));
      });
    };
  },
  getStructureId: function(callback) {
    http.request(
      extend({ path: '/?get=structure_id' }, this._commonOptions),
      this._requestCallback(callback)
    ).end();
  },
  getStructureRevisionId: function(structure_id, callback) {
    http.request(
      extend({ path: '/?get=revision_id&structure_id=' + structure_id }, this._commonOptions),
      this._requestCallback(callback)
    ).end();
  }
};