gistfile1.txt

function getTempImg(base64Image, filename, callback) {
  var decodedImage = new Buffer(base64Image, 'base64');
  var filename = 'cache/' + filename + '.jpg';
  fs.writeFile(filename, decodedImage, function(err, data) {
    console.log(data);
    if (err) return callback(err);
    callback(null, filename);
  })
}