added rest framework conf

dal/settings.py

@@ -65,6 +65,7 @@ INSTALLED_APPS = [
     'django.contrib.staticfiles',
     'bootstrap3',
     'dal',
+    'rest_framework'
 ]
 
 MIDDLEWARE = [
@@ -208,3 +209,10 @@ if config('ENABLE_DEBUG_LOG', default=False, cast=bool):
             set_library_log_detail_level, OFF, BASIC, NETWORK, EXTENDED
         )
         set_library_log_detail_level(BASIC)
+
+
+REST_FRAMEWORK = {
+    'DEFAULT_RENDERER_CLASSES': (
+        'rest_framework.renderers.JSONRenderer',
+    )
+}