---
name: "Types::UUID"
section: "3pm"
platform: "linux"
package: "libtypes-uuid-perl"
version: "0.004-3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Types::UUID"
---

# Types::UUID(3pm)

type constraints for UUIDs

## NAME

Types::UUID - type constraints for UUIDs

## SYNOPSIS

```
   package FroobleStick;

   use Moo;
   use Types::UUID;

   has identifier => (
      is      => 'lazy',
      isa     => Uuid,
      coerce  => 1,
      builder => Uuid->generator,
   );
```

## DESCRIPTION

Types::UUID is a type constraint library suitable for use with Moo/Moose attributes, Kavorka sub signatures, and so forth.

### Type

Currently the module only provides one type constraint, which is exported by default.

- "Uuid"

  A valid UUID string, as judged by the `is_uuid_string()` function provided by UUID::Tiny.

  This constraint has coercions from `"Undef"` (generates a new UUID), `"Str"` (fixes slightly broken-looking UUIDs, adding missing dashes; also accepts base-64-encoded UUIDs) and URI objects using the `"urn:uuid:"` URI scheme.

### Methods

The `"Uuid"` type constraint is actually blessed into a subclass of Type::Tiny, and provides an aditional method:

- "Uuid-\>generate"

  Generates a new UUID. `"Uuid->coerce(undef)"` would also work, but looks a little odd.

- "Uuid-\>generator"

  Returns a coderef which generates a new UUID. For an example usage, see the "SYNOPSIS".

## BUGS

Please report any bugs to \<http://rt.cpan.org/Dist/Display.html?Queue=Types-UUID\>.

## SEE ALSO

Type::Tiny::Manual, UUID::Tiny.

## AUTHOR

Toby Inkster \<tobyink@cpan.org\>.

## COPYRIGHT AND LICENCE

This software is copyright (c) 2014 by Toby Inkster.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

## DISCLAIMER OF WARRANTIES

THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.