Converts map to keyword list recursively

map_to_keyword_list.exs

defmodule MapToKeywordList do
    
    def map_to_keyword_list(map), do: convert(map)
   
    def convert(map) when is_map(map), do: Enum.map(map, fn {k,v} -> {String.to_atom(k),convert(v)}  end) 
    def convert(v), do: v
    
end

# e.g. map= %{"a" => "aa", "b" => %{"c" => "cc", "d" => %{"ee" => "eee", "ff" => "fff"}}} 
      # to [a: "aa", b: [c: "cc", d: [ee: "eee", ff: "fff"]]]