Create a short URI based on UUID and current time
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Short URI Maker

Given a UUID string and a UNIX timestamp in milliseconds, make a short URI slug that can be tagged onto a domain. Each character of the slug is a letter (lower and upper), a digit, a hyphen, a period, an underscore, or a tilde, to be completely ANSI-URI-compliant. The slug contains two concatenated components--a unique ID slug and a time-since slug.


npm install coffee-script -g
npm install uuid-time-uri


The maker is configured using:

utUri.configure({ ... options ... });

And the options are as follows:

{Number} [definition = 8] A number between 1 and 32

A number of characters is taken from the UUID as digest for the slug, excluding dashes. A UUID is 32 characters long and thus valid value is 1 - 32. Default is 8.

{String} [domain]

An optional domain can be provided to be inserted before the slug.

{Number} [epoch = 1357016400000] A positive number

An epoch can be defined as the number of milliseconds since the UNIX Epoch (i.e. 1970-01-01) on which the counting for the URI starts. Defaulf to 2013-01-01.

{Number} [granularity = 86400] A positive number

A granularity, defined as a number of milliseconds, is provided to serve as a unit of counts. For instance, if the granularity is a second, represented as 1, the time-since slug represents the number of milliseconds since the defined epoch. Default to a day.


Simply call make() with the following arguments:

{String} uuid The UUID (with or without dashes) {Number} time UNIX timestamp


var utUri = require('uuid-time-uri');
var utUri epoch = new Date(2013, 01, 01);
var date = new Date(2014, 01, 01);
var month = 60 * 60 * 24 * 30;
var output = null;

  definition: 8
  epoch: epoch.getTime(),
  domain: '',
  granularity: month

output = utUri.make('550e8400-e29b-41d4-a716-446655440000', date.getTime());

console.log(output); // Equals ''