# CastParams
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Casting params in Phoenix controllers.

  defmodule AccountController do
    use AppWeb, :controller
    use CastParams

    # define params types
    # :category_id - required integer param (raise CastParams.NotFound if not exists)
    # :weight - float param, set nil if doesn't exists
    cast_params category_id: :integer!, weight: :float

    # defining for show action
    # *:name* - is required string param
    # *:terms* - is boolean param
    cast_params name: :string!, terms: :boolean when action == :show
    # received prepared params
    def index(conn, %{"category_id" => category_id, "weight" => weight} = params) do

    # received prepared params
    def show(conn, %{"category_id" => category_id, "terms" => terms, "weight" => weight} = params) do      

Documentation can be found at [](

## Installation

If [available in Hex](, the package can be installed
by adding `cast_params` to your list of dependencies in `mix.exs`:

def deps do
    {:cast_params, ">= 0.0.1"} 

## License
This software is licensed under [the MIT license](