Adds get_option/2

lib/absinthe/plug.ex

@@ -396,6 +396,24 @@ defmodule Absinthe.Plug do
   @doc """
   Sets the options for a given GraphQL document execution.
 
+  ## Examples
+
+      iex> Absinthe.Plug.put_options(conn, context: :my_context)
+      iex> Absinthe.Plug.get_option(conn, :context)
+      :my_context
+  """
+  @spec get_option(Plug.Conn.t(), atom()) :: any()
+  def get_option(%Plug.Conn{private: %{absinthe: absinthe}}, key) do
+    Map.get(absinthe, key)
+  end
+
+  def get_option(_, _) do
+    nil
+  end
+
+  @doc """
+  Sets the options for a given GraphQL document execution.
+
   ## Examples
 
       iex> Absinthe.Plug.put_options(conn, context: %{current_user: user})

test/lib/absinthe/plug_test.exs

@@ -619,6 +619,32 @@ defmodule Absinthe.PlugTest do
     end
   end
 
+  describe "get_option/2" do
+    test "It gets the current options for the given key" do
+      context = %{current_user: %{id: 1}}
+
+      conn =
+        conn(:post, "/")
+        |> Absinthe.Plug.put_options(context: context)
+
+      assert Absinthe.Plug.get_option(conn, :context) == context
+    end
+
+    test "It returns nil if the key isn't found" do
+      context = %{current_user: %{id: 1}}
+
+      conn =
+        conn(:post, "/")
+        |> Absinthe.Plug.put_options(context: context)
+
+      assert Absinthe.Plug.get_option(conn, :doesnt_exist) == nil
+    end
+
+    test "It returns nil if there isn't aren't any options yet " do
+      assert Absinthe.Plug.get_option(conn(:post, "/"), :context) == nil
+    end
+  end
+
   describe "assign_context/2" do
     test "with a pristine connection it sets the values as provided" do
       conn =