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file_storage_api

1.3.0
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Package to allow uploading to multiple different asset storage through 1 api. Configurable through env vars.

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file_storage_api lib base.ex
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lib/base.ex 

defmodule FileStorageApi.Base do

  @moduledoc false



  def api_module(connection_name, module) when module in [Container, File] do

    Module.concat([FileStorageApi.API, storage_engine(connection_name), module])

  end



  @spec read_from_map(map, atom, any) :: any

  def read_from_map(options, key, fallback_value) do

    if Map.has_key?(options, key) do

      options[key]

    else

      fallback_value

    end

  end



  @spec storage_engine(atom) :: S3 | Azure | Mock

  defp storage_engine(:default) do

    :file_storage_api

    |> Application.get_env(:storage_api)

    |> Keyword.get(:engine)

    |> convert_to_module()

  end



  defp storage_engine(connection_name) do

    engine_key = String.to_existing_atom("#{connection_name}_conn")



    :file_storage_api

    |> Application.get_env(engine_key)

    |> Keyword.get(:engine)

    |> convert_to_module()

  end



  defp convert_to_module(engine) when engine in [:s3, "s3", "S3"] do

    S3

  end



  defp convert_to_module(Mock), do: Mock

  defp convert_to_module(_), do: Azure

end