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The First Native Elixir library for JSON encoding and decoding

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json lib json dynamo filter.ex
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lib/json/dynamo/filter.ex 

defmodule JSON.Dynamo.Filter do

  defmodule FilterResultObject do

    def run(nil), do: nil



    def run(result_object), do: JSON.encode!(result_object)

  end



  defmodule ProcessFilteredResponse do

    def run(nil, conn), do: conn



    def run(filtered_response, conn) do

      conn

        .resp_content_type("application/json")

        .resp_body(filtered_response)

    end

  end





  def finalize(conn) do

    FilterResultObject.run(conn.private[:result_object])

      |> ProcessFilteredResponse.run(conn)

  end

end