UUIDs

UUIDs.uuid1 — Function

uuid1([rng::AbstractRNG=GLOBAL_RNG]) -> UUID

Generates a version 1 (time-based) universally unique identifier (UUID), as specified by RFC 4122. Note that the Node ID is randomly generated (does not identify the host) according to section 4.5 of the RFC.

Examples

julia> rng = MersenneTwister(1234);

julia> uuid1(rng)
UUID("cfc395e8-590f-11e8-1f13-43a2532b2fa8")

UUIDs.uuid4 — Function

uuid4([rng::AbstractRNG=GLOBAL_RNG]) -> UUID

Generates a version 4 (random or pseudo-random) universally unique identifier (UUID), as specified by RFC 4122.

Examples

julia> rng = MersenneTwister(1234);

julia> uuid4(rng)
UUID("196f2941-2d58-45ba-9f13-43a2532b2fa8")

UUIDs.uuid5 — Function

uuid5(ns::UUID, name::String) -> UUID

Generates a version 5 (namespace and domain-based) universally unique identifier (UUID), as specified by RFC 4122.

Julia 1.1

This function requires at least Julia 1.1.

Examples

julia> rng = MersenneTwister(1234);

julia> u4 = uuid4(rng)
UUID("196f2941-2d58-45ba-9f13-43a2532b2fa8")

julia> u5 = uuid5(u4, "julia")
UUID("b37756f8-b0c0-54cd-a466-19b3d25683bc")

UUIDs.uuid_version — Function

uuid_version(u::UUID) -> Int

Inspects the given UUID and returns its version (see RFC 4122).

Examples

julia> uuid_version(uuid4())
4