Выделение БД и кэша как отдельные модули

App/cache/__init__.py

@@ -0,0 +1,42 @@
+import json
+from redis import Redis, ConnectionError, DataError
+
+class RedisCache:
+    def __init__(self, config: dict):
+        self.config = config
+        self.conn = self._connect()
+
+    def _connect(self):
+        try:
+            conn = Redis(**self.config)
+            return conn
+        except DataError as err:
+            print(err)
+            return None
+
+    def set_value(self, name: str, value_dict: dict, ttl: int):
+        try:
+            value_js = json.dumps(value_dict)
+            self.conn.set(name=name, value=value_js)
+            if ttl > 0:
+                self.conn.expire(name, ttl)
+                return True
+        except ConnectionError as err:
+            print(err)
+            return False
+
+    def get_value(self, name: str):
+        try:
+            value_js = self.conn.get(name)
+        except:
+            return None
+        value_js = self.conn.get(name)
+        if value_js:
+            value_dict = json.loads(value_js)
+            return value_dict
+        else:
+            return None
+    
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.conn.close()
+        return True