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lib/docusign/util.ex
defmodule DocuSign.Util do
@moduledoc false
@doc """
Performs a root-level conversion of map keys from strings to atoms.
This function performs the transformation safely using `String.to_existing_atom/1`, but this has a possibility to raise if
there is not a corresponding atom.
It is recommended that you pre-filter maps for known values before
calling this function.
## Examples
iex> map = %{
...> "a"=> %{
...> "b" => %{
...> "c" => 1
...> }
...> }
...> }
iex> DocuSign.Util.map_keys_to_atoms(map)
%{
a: %{
"b" => %{
"c" => 1
}
}
}
"""
def map_keys_to_atoms(m) do
Enum.into(m, %{}, fn
{k, v} when is_binary(k) ->
a = String.to_existing_atom(k)
{a, v}
entry ->
entry
end)
end
end