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ja_serializer

0.7.1
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A serialization library implementing the jsonapi.org 1.0 spec suitable for use building JSON APIs in Phoenix and any other Plug based framework or app.

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ja_serializer lib ja_serializer builder link.ex
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lib/ja_serializer/builder/link.ex 

defmodule JaSerializer.Builder.Link do

  @moduledoc false



  @param_fetcher_regex ~r/:\w+/



  defstruct href: nil, meta: nil, type: :related



  def build(_context, _type, nil), do: nil



  def build(context, type, path) when is_binary(path) do

    %__MODULE__{

      href: path_for_context(context, path),

      type: type

    }

  end



  def build(context, type, path) when is_atom(path) do

    %__MODULE__{

      href: apply(context.serializer, path, [context.model, context.conn]),

      type: type

    }

  end



  defp path_for_context(context, path) do

    @param_fetcher_regex

    |> Regex.replace(path, &frag_for_context(&1, context))

  end



  defp frag_for_context(":" <> frag, %{serializer: serializer} = context) do

    "#{apply(serializer, String.to_atom(frag), [context.model, context.conn])}"

  end

end