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app/db/redis.py

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+from __future__ import annotations
+
+from redis.asyncio import Redis, from_url
+
+from app.core.config import settings
+
+redis_client: Redis | None = None
+
+
+async def init_redis() -> None:
+    global redis_client
+    redis_client = from_url(
+        settings.REDIS_URL,
+        encoding="utf-8",
+        decode_responses=True,
+    )
+
+
+async def close_redis() -> None:
+    global redis_client
+    if redis_client:
+        await redis_client.close()
+
+
+def get_redis() -> Redis:
+    assert redis_client is not None, "Redis not initialized"
+    return redis_client