CastParams

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
    end

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

Documentation can be found at https://hexdocs.pm/cast_params.

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"} 
  ]
end

License

This software is licensed under the MIT license.