Justify is a data validation library for Elixir.

The primary philosophy behind Justify is that it should be easy to validate data without schemas or types. All of Justify's validation functions will happily accept a plain ol' map.

iex> %{email: "madebyanthony"}
...> |> Justify.validate_required(:email)
...> |> Justify.validate_format(:email, ~r/\S+@\S+/)
%Justify.Dataset{errors: [email: {"has invalid format", validation: :format}], valid?: false}

Pretty simple. Not much more to it than that.

• validate_acceptance/3
• validate_confirmation/3
• validate_embed/3
• validate_exclusion/4
• validate_format/4
• validate_inclusion/4
• validate_length/3
• validate_required/3