feat: Add redis pool singleton

selfprivacy_api/utils/redis_pool.py

@@ -0,0 +1,32 @@
+"""
+Redis pool module for selfprivacy_api
+"""
+import redis.asyncio as redis
+from selfprivacy_api.utils.singleton_metaclass import SingletonMetaclass
+
+REDIS_SOCKET = "/run/redis-sp-api/redis.sock"
+
+
+class RedisPool(metaclass=SingletonMetaclass):
+    """
+    Redis connection pool singleton.
+    """
+
+    def __init__(self):
+        self._pool = redis.ConnectionPool.from_url(
+            f"unix://{REDIS_SOCKET}",
+            decode_responses=True,
+        )
+        self._pubsub_connection = self.get_connection()
+
+    def get_connection(self):
+        """
+        Get a connection from the pool.
+        """
+        return redis.Redis(connection_pool=self._pool)
+
+    def get_pubsub(self):
+        """
+        Get a pubsub connection from the pool.
+        """
+        return self._pubsub_connection.pubsub()

shell.nix

@@ -18,6 +18,7 @@ let
     black
     fastapi
     uvicorn
+    redis
     (buildPythonPackage rec {
       pname = "strawberry-graphql";
       version = "0.123.0";