Jeaux

Jeaux is my attempt at building a light and easy schema validator.

Installation

Available in Hex, the package can be installed as:

1. Add jeaux to your list of dependencies in mix.exs:

```elixir
def deps do
  [{:jeaux, "~> 0.4.0"}]
end
```

Right now it only supports validating params but I would like to be able to deep validate payloads as well.

Example:

# web/controllers/my_controller.ex
@params_schema %{
  lat!: :float,
  lon!: :float,
  radius: [type: :integer, default: 100, min: 1, max: 100],
  properties: %{
    name: :string
  }
}

def index(conn, params) do
    case Jeaux.validate(params, @params_schema) do
      {:ok, valid_params} -> do_your_thing(valid_params)
      {:error, message} -> Explode.bad_request(conn, message)
    end
end

Using a ! in your key denotes it is required.

Currently, the following keys are valid:

• type: with :integer, :string, :float, or :list as applicable types
• default: Sets a default value if none is currently provided in params
• min: Minimum value a param can have
• max: Maximum value a param can have
• valid: Values that are valid options. Can be a single item or a list.

It is important to note that no matter how params are passed in to Jeaux, they will be returned with keys as atoms.

If you want to contribute, feel free to fork and open a pr.

Checkout Explode for an easy utility for responding with standard HTTP/JSON error payloads in Plug- and Phoenix-based applications.