go-uuid

A package providing UUID v1, v4 and OrderedUUID with utility interface and function.

What is an OrderedUUID?

It is a UUID v1 where the timestamp is positioned at the first part of the uuid. It is useful as a primary key or index in a database like MySQL. This way, it can be sorted by timestamp, and new elements should be added on top of the index.

Utility function?

Yes, the UUID struct has a Scan/Value function that follows the driver.Valuer / driver.Scanner interface. This allows you to scan your struct with a UUID right from the database! Moreover, it is implementing the encoding.TextUnmarshaler and the encoding.TextMarshaler for encoding and decoding features.

Supported UUID formats for decoding

   "6ba7b810-9dad-11d1-80b4-00c04fd430c8"
   "6ba7b8109dad11d180b400c04fd430c8"

Supported UUID text representations

   uuid := canonical | hashlike
   plain := canonical | hashlike
   canonical := 4hexoct '-' 2hexoct '-' 2hexoct '-' 6hexoct
   hashlike := 12hexoct