gistfile1.txt

ar http = require('http');
var util = require('util');

var count = (new Date()).getTime();
var apiPath = 'services/rest/?method=flickr.photos.getInfo&api_key=52102ae42eabc584b4f587b5f7aa5797&photo_id=6053145786+-+013&format=rest';                                                                                                                                                                                                
var host = 'api.flickr.com';

var agent = http.getAgent(host, 80);
agent.maxSockets = 50;
console.log(util.inspect(agent));

var numberOfRequests = 250;
var completedCount = 0;
var startTime = (new Date()).getTime();

function callAPI(id) {

    doGet(id + ': GET1',
          http,
          host,
          80,
          apiPath + '&rand=' + (count++),
          function(err, response) {

	      if(err) {
                  console.log('ERROR:' + err);
                  return;
              }

              ++completedCount;

              console.log(id + ' completed (' + completedCount + ' of ' + numberOfRequests + ')');
              if(numberOfRequests === completedCount) {
                  var endTime = (new Date()).getTime();
                  console.log('num req:' + numberOfRequests +
                              ', time:' + (endTime-startTime)/1000 + '(s)');
                  return;
              }
          });
}

function doGet(id, protocol, host, port, path, callback) {
    var options = {
        host: host,
        port: port,
        path: path,
        method: 'GET'
    };

    var req = protocol.request(options, function(res) {

        var response = '';
        res.on('data', function (chunk) {
            response += chunk;
        });
        res.on('end', function () {
            callback(null, response);
        });
        res.on('error', function (e) {
            callback(e, null);
        });
    });
    req.on('error', function(e) {
        callback(e, null);
    });
    req.end();
}

for(var i=0; i<numberOfRequests; ++i) {
    callAPI(i);
}