[config] Enables swagger UI by default (#8732)

* [config] Enables swagger UI by default

UPDATING.md

@@ -23,6 +23,10 @@ assists people when migrating to a new version.
 
 ## Next
 
+* [8732](https://github.com/apache/incubator-superset/pull/8732): Swagger user interface is now enabled by default. 
+A new permission `show on SwaggerView` is created by `superset init` and given to the `Admin` Role. To disable the UI,
+set `FAB_API_SWAGGER_UI = False` on config.
+
 * [8721](https://github.com/apache/incubator-superset/pull/8721): When using the cache
 warmup Celery task you should now specify the `SUPERSET_WEBSERVER_PROTOCOL` variable
 in your configuration (probably either "http" or "https"). This defaults to "http".

superset/config.py

@@ -104,7 +104,6 @@ def _try_json_readsha(filepath):
 SUPERSET_WEBSERVER_TIMEOUT = 60
 
 SUPERSET_DASHBOARD_POSITION_DATA_LIMIT = 65535
-EMAIL_NOTIFICATIONS = False
 CUSTOM_SECURITY_MANAGER = None
 SQLALCHEMY_TRACK_MODIFICATIONS = False
 # ---------------------------------------------------------
@@ -164,6 +163,10 @@ def _try_json_readsha(filepath):
 # e.g. setting it to '/welcome' would take the user to '/superset/welcome'
 LOGO_TARGET_PATH = None
 
+# Enables SWAGGER UI for superset openapi spec
+# ex: http://localhost:8080/swaggerview/v1
+FAB_API_SWAGGER_UI = True
+
 # Druid query timezone
 # tz.tzutc() : Using utc timezone
 # tz.tzlocal() : Using local timezone