added FDA key .env (temporarily) and plugin loader catch block

cookbook/urls.py

@@ -61,7 +61,10 @@ router.register(r'access-token', api.AccessTokenViewSet)
 
 for p in PLUGINS:
     if c := locate(f'{p["module"]}.urls.{p["api_router_name"]}'):
-        router.extend(c)
+        try:
+            router.extend(c)
+        except AttributeError:
+            pass
 
 urlpatterns = [
     path('', views.index, name='index'),

recipes/settings.py

@@ -80,6 +80,8 @@ DJANGO_TABLES2_PAGE_RANGE = 8
 HCAPTCHA_SITEKEY = os.getenv('HCAPTCHA_SITEKEY', '')
 HCAPTCHA_SECRET = os.getenv('HCAPTCHA_SECRET', '')
 
+FDA_API_KEY = os.getenv('FDA_API_KEY', 'DEMO_KEY')
+
 SHARING_ABUSE = bool(int(os.getenv('SHARING_ABUSE', False)))
 SHARING_LIMIT = int(os.getenv('SHARING_LIMIT', 0))