i want to access the “defaultValue” key.

%{
  "category" => {:ok,
   %{
     "defaultValue" => 10,
     "detailed" => [
       %{"categoryName" => "test", "categoryValue" => 23}
     ],
     "total" => 1
   }}
}

iex(56)> test_map["category"]
{:ok,
 %{
   "defaultValue" => 10,
   "detailed" => [%{"categoryName" => "test", "categoryValue" => 23}],
   "total" => 1
 }}

normally, i’d do this: test_map["category"]["defaultValue"]

but i get this error in return:

iex(57)> test_map["category"]["defaultValue"]
** (FunctionClauseError) no function clause matching in Access.get/3    
    
    The following arguments were given to Access.get/3:
    
        # 1
        {:ok,
         %{
           "defaultValue" => 10,
           "detailed" => [%{"categoryName" => "test", "categoryValue" => 23}],
           "total" => 1
         }}
    
        # 2
        "defaultValue"
    
        # 3
        nil
    
    Attempted function clauses (showing 5 out of 5):
    
        def get(%module{} = container, key, default)
        def get(map, key, default) when is_map(map)
        def get(list, key, default) when is_list(list) and is_atom(key)
        def get(list, key, _default) when is_list(list)
        def get(nil, _key, default)
    
    (elixir) lib/access.ex:265: Access.get/3

i noticed i have a tuple with a atom :ok and a map inside it, and that’s probably why i can’t access my “defaultValue” key but i’m new in elixir/functional programming and i am having a hard time trying to find the solution.