Universally Unique Lexicographically Sortable Identifier

Objective-C wrapper of the C++ library

Usage

Objective-C

#import <ULID/ULID.h>

NSLog(@"%@", [[ULID new] ulidString]);

Swift:

import ULID

print(ULID().ulidString)

Requirements

• iOS 9.0+
• tvOS 9.0+
• watchOS 2.0+
• macOS 10.10+

Specification

Below is the current specification of ULID as implemented in this repository.

Note: the binary format has not been implemented.

 01AN4Z07BY      79KA1307SR9X4MV3

|----------|    |----------------|
 Timestamp          Randomness
   48bits             80bits

Installation

Carthage

To install it, simply add the following line to your Cartfile:

github "whitesmith/ulid"

Then run carthage update.

Follow the current instructions in Carthage's README for up to date installation instructions.

CocoaPods

To install it, simply add the following line to your Podfile:

pod 'ULID'

Then run pod install with CocoaPods 1.0 or newer.

Contributing

The best way to contribute is by submitting a pull request. We'll do our best to respond to your patch as soon as possible. You can also submit a new GitHub issue if you find bugs or have questions.