add redis config settings

Author: Kilo59

.env.example

@@ -1,2 +1,3 @@
 # Port to serve app on.
-PORT = 5000
+PORT = 5000
+LOCAL_REDIS_URL = redis://username:password@localhost:6379

app/config.py

@@ -2,17 +2,19 @@
 import functools
 import logging
 
-import pydantic
+from pydantic import AnyUrl, BaseSettings, HttpUrl
 
 CFG_LOGGER = logging.getLogger("app.config")
 
 
-class _Settings(pydantic.BaseSettings):
+class _Settings(BaseSettings):
     port: int = 5000
+    rediscloud_url: HttpUrl = None
+    local_redis_url: AnyUrl = "redis://localhost:6379"
 
 
 @functools.lru_cache()
-def get_settings(**kwargs):
+def get_settings(**kwargs) -> BaseSettings:
     """
     Read settings from the environment or `.env` file.
     https://pydantic-docs.helpmanual.io/usage/settings/#dotenv-env-support