gistfile1.js

var fs      = require('fs');
var request = require('request');
var apiUrl  = 'http://api.flickr.com/services/upload/';

var filenames = fs.readdirSync(path);
filenames.forEach(function(filename) {
  // open a file stream on the local image
  var fileStream = fs.createReadStream(path + filename);
  // read from the file and write to the HTTP request
  fileStream.pipe(request.post(apiUrl));
  fileStream.on('end', function() { 
    console.log('Sent file ' + filename); 
  });
});
console.log('Finished!');