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SpiderMan,a fast high-level web crawling & scraping framework for Elixir

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spider_man lib spider_man pipeline json_encode.ex
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lib/spider_man/pipeline/json_encode.ex 

defmodule SpiderMan.Pipeline.JsonEncode do

  @moduledoc false

  @behaviour SpiderMan.Pipeline



  @impl true

  def call(%{value: value}, encode_opts) do

    Jason.encode(value, encode_opts)

  end



  @impl true

  def prepare_for_start(encode_opts, options) do

    unless Code.ensure_loaded?(Jason) do

      raise "Please add Jason lib to your deps."

    end



    encode_opts =

      case encode_opts do

        [encode_opts: encode_opts] -> encode_opts

        opts when is_list(opts) -> opts

        _ -> []

      end



    {encode_opts, options}

  end

end