added typespecs for start_spider and stop_spider

elixir-crawly · Dec 11, 2019 · f3dd271 · f3dd271
1 parent 8de476a
commit f3dd271
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/lib/crawly/engine.ex b/lib/crawly/engine.ex
@@ -13,10 +13,16 @@ defmodule Crawly.Engine do
 
   defstruct started_spiders: %{}
 
+  @spec start_spider(module()) ::
+          {:ok, started_spiders()}
+          | {:error, :spider_already_started}
+          | {:error, :atom}
   def start_spider(spider_name) do
     GenServer.call(__MODULE__, {:start_spider, spider_name})
   end
 
+  @spec stop_spider(module()) ::
+          {:ok, started_spiders()} | {:error, :spider_not_running}
   def stop_spider(spider_name) do
     GenServer.call(__MODULE__, {:stop_spider, spider_name})
   end