uuid

Package uuid implements UUID RFC 4122.

Usage

Generating

Time-Based (Version 1)

uuid.NewTimeBased() (uuid.UUID, error)
uuid.NewV1() (uuid.UUID, error)

DCE Security (Version 2)

uuid.NewDCESecurity(uuid.Domain) (uuid.UUID, error)
uuid.NewV2(uuid.Domain) (uuid.UUID, error)

Name-Based uses MD5 hashing (Version 3)

uuid.NewNameBasedMD5(namespace, name string) (uuid.UUID, error)
uuid.NewV3(namespace, name string) (uuid.UUID, error)

Random (Version 4)

uuid.NewRandom() (uuid.UUID, error)
uuid.NewV4() (uuid.UUID, error)

Name-Based uses SHA-1 hashing (Version 5)

uuid.NewNameBasedSHA1(namespace, name string) (uuid.UUID, error)
uuid.NewV5(namespace, name string) (uuid.UUID, error)

Styles

• Standard: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx (8-4-4-4-12, length: 36)
• Without Dash: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx (length: 32)

Formatting & Parsing

uuid.UUID.String() string                        // format to standard style
uuid.UUID.Format(uuid.Style) string              // format to uuid.StyleStandard or uuid.StyleWithoutDash

uuid.Parse(string) (uuid.UUID, error)       // parse from UUID string