vex

Includes built-in validators for presence, absence, inclusion, format, length, number, UUID, acceptance, and confirmation, covering common validation needs as detailed in the README's 'Supported Validations' section.

Supports :if, :unless, :if_any, and :unless_any options for applying validations based on other attributes or custom functions, with examples like skipping body length if reference_url is present.

Allows adding new validators via configurable sources and overriding existing ones, demonstrated in the 'Adding and Overriding Validators' section with a custom currency validator example.

Seamlessly works with Elixir structs using Vex.Struct and keyword lists via a :_vex entry, enabling declarative validation setup without boilerplate.