set_format_plug.ex
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set_format_plug.ex
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	# Pleroma: A lightweight social networking server
	# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
	# SPDX-License-Identifier: AGPL-3.0-only

	defmodule Pleroma.Plugs.SetFormatPlug do
	import Plug.Conn, only: [assign: 3, fetch_query_params: 1]

	def init(_), do: nil

	def call(conn, _) do
	case get_format(conn) do
	nil -> conn
	format -> assign(conn, :format, format)
	end
	end

	defp get_format(conn) do
	conn.private[:phoenix_format] \|\|
	case fetch_query_params(conn) do
	%{query_params: %{"_format" => format}} -> format
	_ -> nil
	end
	end
	end