How to convert map keys from strings to atoms in Elixir

Question

What is the way to convert %{\"foo\" => \"bar\"} to %{foo: \"bar\"} in Elixir?

Answer 1

defmodule Service.MiscScripts do

@doc """
Changes String Map to Map of Atoms e.g. %{"c"=> "d", "x" => %{"yy" => "zz"}} to
        %{c: "d", x: %{yy: "zz"}}, i.e changes even the nested maps.
"""

def  convert_to_atom_map(map), do: to_atom_map(map)

defp to_atom_map(map) when is_map(map), do: Map.new(map, fn {k,v} -> {String.to_atom(k),to_atom_map(v)} end)     
defp to_atom_map(v), do: v

end