zf

map_get.ex (582B)

---

 defmodule Absinthe.Middleware.MapGet do
   @moduledoc """
   This is the default middleware. It assumes the the object it receives is a map
   and uses `Map.get/2` to get the value for this field. If this field is already
   marked as resolved, then this middleware does not touch it.
 
   If you want to replace this middleware you should use
   `Absinthe.Schema.replace_default/4`
   """
 
   @behaviour Absinthe.Middleware
 
   def call(%{state: :unresolved, source: source} = res, key) do
     %{res | state: :resolved, value: Map.get(source, key)}
   end
 
   def call(res, _key), do: res
 end