client/server - update message - update authentication

lib/myapp/auth/token.ex

@@ -1,15 +1,18 @@
 defmodule MyApp.Guardian.Auth.Token do
   alias MyApp.Guardian
 
+  # one month in seconds
+  defp one_month(), do: 2592000
+
   @spec add_token_and_map_claims(map | {atom, any}) :: {:ok, map} | {:error, String.t}
   def add_token_and_map_claims(user) when is_map(user) do
 
     claims = user
-    |> Map.take([:id, :battletag, :battle_net_id, "access_token"]) # take values from user object to map to claims
+    |> Map.take([:id, :battletag, :battle_net_id, :access_token]) # take values from user object to map to claims
     |> Guardian.add_permissions(get_permissions(user))
 
     # set token expiration to the same as the battlenet token
-    case Guardian.encode_and_sign(user, claims, ttl: {user["expires_in"], :seconds}) do
+    case Guardian.encode_and_sign(user, claims, ttl: {Map.get(user, :expires_in) || one_month(), :seconds}) do
       {:ok, token, _claims} -> {:ok, Map.merge(user, %{token: token})}
       {:error, error} -> {:error, error}
     end