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

I think the easiest way to do this is to use Map.new:

%{"a" => 1, "b" => 2} 
|> Map.new(fn {k, v} -> {String.to_atom(k), v} end)      

=> %{a: 1, b: 2}