var Hashids = require("hashids");

encode = function(string, salt, callback) {
  var hashids = new Hashids(decodeURIComponent(salt));
  var id = hashids.encode(parseInt(string));
  callback(id);
}

decode = function(string, salt, callback) {
  var hashids = new Hashids(decodeURIComponent(salt));
  var numbers = hashids.decode(string);
  callback(numbers);
}