README.md

iid

Dead simple numeric IDs

iid lets you generate unique 52 bits IDs, with the whole API consisting of a single gen function. IDs never take more than 52 bits, so they are always valid numbers in JavaScript, which makes this library perfect for IDs used in web APIs.

Structure

+---------+--------------------------+------------+
| Padding | Timestamp                | Serial     |
+---------+--------------------------+------------+

Padding --- [12 bits] - 0 padding to fill an unsigned 64 bits integer
Timestamp - [36 bits] - 36 least significant bits of the current Unix timestamp
Serial ---- [16 bits] - Automatically increasing number starting at 0 for each timestamp

License

Licensed under the Apache License, Version 2.0 (LICENSE or http://www.apache.org/licenses/LICENSE-2.0).