From 062b81728cecfce1d21e00fe116017f5faf2de9a Mon Sep 17 00:00:00 2001
From: Dohyun Kim <84333692+dohyun97@users.noreply.github.com>
Date: Sat, 14 Aug 2021 23:48:46 -0400
Subject: [PATCH 1/2] Creational design pattern

---
 cre.py | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 cre.py

diff --git a/cre.py b/cre.py
new file mode 100644
index 00000000..c43dee32
--- /dev/null
+++ b/cre.py
@@ -0,0 +1,41 @@
+"""app.config.py"""
+import functools
+import logging
+
+from pydantic import AnyUrl, BaseSettings
+
+CFG_LOGGER = logging.getLogger("app.config")
+
+
+class _Settings(BaseSettings):
+    __instance = None
+
+    def __init__(self):
+        if not _Settings.__instance:
+            print("I have already got")
+        else:
+            port: int = 5000
+            rediscloud_url: AnyUrl = None
+            local_redis_url: AnyUrl = None
+            # Scout APM
+            scout_name: str = None
+            # Sentry
+            sentry_dsn: str = None
+
+    @functools.lru_cache()
+    def get_settings(**kwargs) -> BaseSettings:
+        """
+         Read settings from the environment or `.env` file.
+         https://pydantic-docs.helpmanual.io/usage/settings/#dotenv-env-support
+
+         Usage:
+         import app.config
+
+         settings = app.config.get_settings(_env_file="")
+         port_number = settings.port
+         """
+        CFG_LOGGER.info("Loading Config settings from Environment ...")
+        if _Settings.__instance is None:
+            _Settings.__instance = _Settings(**kwargs)
+        else:
+            return _Settings(**kwargs)

From b61a071334ad472b2a7c6886d7eb3b1486d1a8b5 Mon Sep 17 00:00:00 2001
From: Dohyun Kim <84333692+dohyun97@users.noreply.github.com>
Date: Sun, 15 Aug 2021 21:30:38 -0400
Subject: [PATCH 2/2] creational design pattern

---
 cre.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cre.py b/cre.py
index c43dee32..9717f6fa 100644
--- a/cre.py
+++ b/cre.py
@@ -23,6 +23,7 @@ def __init__(self):
             sentry_dsn: str = None
 
     @functools.lru_cache()
+    @staticmethod
     def get_settings(**kwargs) -> BaseSettings:
         """
          Read settings from the environment or `.env` file.