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chromic_pdf

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Fast HTML-2-PDF/A renderer based on Chrome & Ghostscript

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chromic_pdf lib chromic_pdf pdf json_rpc.ex
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lib/chromic_pdf/pdf/json_rpc.ex 

defmodule ChromicPDF.JsonRPC do

  @moduledoc false



  @type call_id :: integer()

  @type session_id :: binary()

  @type method :: binary()

  @type params :: map()



  @type message :: map()



  @type call :: browser_call() | session_call()

  @type browser_call :: {method(), params()}

  @type session_call :: {session_id(), method(), params()}



  @spec encode(call(), call_id()) :: binary()

  def encode({method, params}, call_id) do

    Jason.encode!(%{

      "method" => method,

      "params" => params,

      "id" => call_id

    })

  end



  def encode({session_id, method, params}, call_id) do

    Jason.encode!(%{

      "sessionId" => session_id,

      "method" => method,

      "params" => params,

      "id" => call_id

    })

  end



  @spec decode(binary()) :: message()

  def decode(data), do: Jason.decode!(data)



  @spec is_response?(message(), call_id()) :: boolean()

  def is_response?(msg, call_id) do

    Map.has_key?(msg, "result") && msg["id"] == call_id

  end



  @spec is_notification?(message(), method()) :: boolean()

  def is_notification?(msg, method) do

    Map.has_key?(msg, "method") && msg["method"] == method

  end

end